BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:Investigation of nuclei beyond N = 126 shell closure region at the DESPEC Phase-0 campaign DTSTART;VALUE=DATE-TIME:20250325T161000Z DTEND;VALUE=DATE-TIME:20250325T163000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26347@indico.ific.uv.es DESCRIPTION:Speakers: Mallicka Kundu ()\nIn this contribution\, the prelim inary results obtained from implantation in Active Stopper during an exper iment scheduled in June 2024 will be presented . This experiment is a part of the DESPEC collaboration at the GSI-FAIR Phase-0 campaign.The experime nt focuses on exploring the region beyond N = 126 shell closure\, which is relevant to the modeling of the r-process as most nuclei in this region a re formed by this process.\nIn the experiment\, a 238U beam accelerated to 1 GeV/nucleon is directed on a 9Be target to produce heavy neutron rich n uclei by cold fragmentation reaction.The Fragment Separator (FRS) is used to separate the exotic nuclei by in-flight technique. These separated ions are then implanted in AIDA active stopper which consists of two triple-wa fer DSSDs. The AIDA setup is placed between two plastic scintillators to m easure the timing of the implanted ions. A DINTESPEC detector consisting o f three DSSDs is positioned behind AIDA. The hybrid FATIMA + DEGAS array\, consisting of 36 LaBr3 and 27 HPGe detectors has been used to extract γ decay and lifetime information.\nWe have observed α decays from implants in the Active Stopper during our experiment and conducted some preliminary studies to characterize these decays. α spectra for the X strips in DSSD 0 have been obtained with α energy aligned according to the ground-state α decay of 215Po. Using an α-γ correlation analysis within a prompt tim e-coincidence window of approximately 4 μs\, we can successfully identify some peaks in the α spectra. Additionally\, an α-tagged β delayed γ s pectroscopy study was performed to investigate the α decays with very sho rt half-lives. The findings of these studies\, including the identificatio n of specific α decays through this methodology will be presented in this contribution.\n\nhttps://indico.ific.uv.es/event/7777/contributions/26347 / LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26347/ END:VEVENT BEGIN:VEVENT SUMMARY:Correlation Analysis of Low-Energy Beta Decay and Conversion Elect ron Signals with an Implantation Detector DTSTART;VALUE=DATE-TIME:20250325T155000Z DTEND;VALUE=DATE-TIME:20250325T161000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26344@indico.ific.uv.es DESCRIPTION:Speakers: Andy Briscoe (The University of Liverpool)\nDecay sp ectroscopy of the most exotic neutron-deficient nuclei can be effectively performed using a recoil separator coupled with a highly segmented silicon implantation detector positioned at its focal plane to study weakly produ ced products resulting from fusion-evaporation reactions. Sufficient pixel ation enables the correlation of implantation events with their subsequent decay chains. Spatial and temporal correlation analysis is well-suited fo r decay chains involving alpha\, proton or isomeric gamma-ray emissions du e to their characteristic energies. Extending this method to include state s that decay by beta emission is more challenging because of the resultant continuous energy distribution and the substantial range of the emitted b eta particles within the silicon detector. Similarly\, correlating with co nversion electrons presents similar challenges due to their low energy. Re sults from recent studies at the Accelerator Laboratory of University of J yväsklyä on experiments focusing on the measurement of low-energy beta a nd conversion electron signals in decay chains involving 156W [1]\, 155Lu [2] and 156Ta [3] will be presented. The MARA recoil separator [4] and its advanced array of detectors [5] was deployed and provided new nuclear str ucture insights\, including beta decay half-lives\, beta-decay feeding\, b ranching ratios and state multipolarities.\n\nThe application of this meth od to other suitable advanced implantation detectors systems with the aid of simulations will be discussed for future prospective decay spectroscopy experiments.\n\n[1] A. D. Briscoe et al.\, Phys. Lett. B 847 (2023)\n[2] R. J. Carroll\, et al.\, Phys. Rev. C 94\, 064311 (2016).\n[3] I. G. Darby et al.\, Phys. Rev. C 83\, 064320 (2011)\n[4] J. Uusitalo\, et al.\, Acta Phys. Pol. B 50\, 319 (2019).\n[5] J. Sarén\, J. Uusitalo\, H. Joukainen \, Nucl. Instrum. Methods Phys. Res. B 541\, 33–36 (2023).\n\nhttps://in dico.ific.uv.es/event/7777/contributions/26344/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26344/ END:VEVENT BEGIN:VEVENT SUMMARY:Digital DAQ System at RIBF for Beta-Decay Studies DTSTART;VALUE=DATE-TIME:20250325T143000Z DTEND;VALUE=DATE-TIME:20250325T150000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26343@indico.ific.uv.es DESCRIPTION:Speakers: Phong Vi (RIKEN)\nAdvancing beta-decay experiments a t RIBF (RIKEN Nishina Center) requires a robust and efficient data acquisi tion (DAQ) system capable of handling high-rate conditions while capturing rare decay events with minimum deadtime. This presentation introduces the development and implementation of a digital DAQ system based on fast digi tizers and a customized version of the RCDAQ framework [1].\nThe DAQ syste m processes\, reads out\, and monitors online a large number of detector i nputs in parallel. These include a wide variety of detectors: BigRIPS beam line detectors\, the silicon detector array WAS3ABi\, the segmented plasti c detector GARi [2]\, neutron and gamma-ray detector arrays\, and the MCP- silicon active stopper of the ZDMRTOF setup [3]. Its deployment has been p ivotal in several beta-decay experiments conducted at RIKEN RIBF [4\, 5\, 6].\nIn this talk\, I will present the system’s architecture\, emphasizi ng its scalability\, data-handling capabilities\, and the seamless integra tion of diverse detector types. I will also highlight experimental results that demonstrate the successful implementation of the DAQ system for the active stopper WAS3ABi\, GARi and MCP-Si.\n\n[1] M. L. Purschke\, 2012 18t h IEEE-NPSS Real Time Conference\, Berkeley\, CA\, USA\, (IEEE\, 2012).\n[ 2] S. Nishimura\, PTEP 2012\, 03C006 (2012).\n[3] M. Rosenbusch et al.\, N IMA 1047\, 167824 (2023).\n[4] R. Yokoyama et al.\, Phys. Rev. C 108\, 064 307 (2023).\n[5] T. T. Yeung et al.\, Phys. Rev. Lett. 133\, 072501 (2024) .\n[6] V. H. Phong et al.\, RIKEN Accel. Prog. Rep. 56 (2023).\n\nhttps:// indico.ific.uv.es/event/7777/contributions/26343/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26343/ END:VEVENT BEGIN:VEVENT SUMMARY:Recoil-decay correlations with beta particles at the MARA focal pl ane DTSTART;VALUE=DATE-TIME:20250325T110000Z DTEND;VALUE=DATE-TIME:20250325T113000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26339@indico.ific.uv.es DESCRIPTION:Speakers: Panu Ruotsalainen (Uni. Jyväskylä)\nThe recoil-de cay correlation technique is a powerful tool to perform spectroscopic stud ies of exotic nuclei produced with very low cross sections. The characteri stic alpha or proton decays (or decay chains) observed at the focal plane of a recoil separator provide a straightforward way to identify the produc ed nuclei and allows to “tag” the prompt or delayed gamma-rays emitted by the nucleus of interest. However\, nuclei around the N=Z line in the A =50-80 mass region are beta+ emitters\, which make the spectroscopic studi es of these systems particularly challenging when employing the recoil-dec ay correlation technique. The complications arise for example from the con tinuous energy distributions\, longish decay half-lives\, and extended ran ges of beta particles in the detector material.\nIn this presentation\, th e recent experimental advances in the instrumentation and methodologies\, achieved at the Accelerator Laboratory of the University of Jyväskylä\, to enable the spectroscopic studies of beta-decaying N≈Z nuclei will be discussed together with some examples of fresh spectroscopic data\, e.g.\, on 62Ge\, 66As and 78Zr nuclei.\n\nhttps://indico.ific.uv.es/event/7777/c ontributions/26339/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26339/ END:VEVENT BEGIN:VEVENT SUMMARY:The DESPEC Fiber IMPlanter DTSTART;VALUE=DATE-TIME:20250325T083000Z DTEND;VALUE=DATE-TIME:20250325T090000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26335@indico.ific.uv.es DESCRIPTION:Speakers: Jelena Vesic (Jozef Stefan Institute\, Ljubljana\, S lovenia)\nDESPEC experiments aim at a detailed study of the decay mechanis ms in the most exotic nuclear species at reach at GSI/FAIR\, with the meas urements of decay half-lives\, competing decay modes\, and isomeric state identification. For the DESPEC experimental program\, ions will be stopped in an active implanter and their subsequent decays will be measured. The active implanter’s role is to stop the nuclides produced by the FRS/Supe r-FRS\, provide their respective implantation times and positions\, detect the times and positions of subsequent β or α decays\, and provide rough energy information to distinguish the decay processes. Particularly for f ast-timing experiments\, an implantation detector is needed with a time re solution better than 1ns and the capability to detect and distinguish betw een ion implantations and subsequent decays. The fundamental idea of Fibre IMPlanter (FIMP) is to replace the DSSSD-s array with scintillating fibre s. Such fibres made from polystyrene-based scintillation materials in thin PMMA cladding are available and can be read out by SiPMs. The FIMP consis ts of layers of orthogonally running fibre mats. The design is based on th e assumption that β and α particles and the associated secondary electro ns will hit at least one fibre in each of two consecutive layers so that c omplete position information is available. The first small-scale FIMP prot otype with custom front-end readout electronics and a mechanical construct ion paradigm suitable for scaling up to the planned full size has been con structed and recently tested in beam in GSI. The preliminary results as we ll as future plans and outlook will be presented.\n\nhttps://indico.ific.u v.es/event/7777/contributions/26335/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26335/ END:VEVENT BEGIN:VEVENT SUMMARY:The FRIB Decay Station initiator and its Active Stoppers DTSTART;VALUE=DATE-TIME:20250324T150000Z DTEND;VALUE=DATE-TIME:20250324T153000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26329@indico.ific.uv.es DESCRIPTION:Speakers: James M. Allmond (ORNL)\nThe Facility for Rare Isoto pe Beams (FRIB) will provide access to roughly 80% of the exotic isotopes predicted to exist up to uranium (Z = 92). The FRIB Decay Station (FDS) — an efficient\, granular\, and modular multi-detector system designed u nder a common infrastructure — will be a key discovery instrument for FR IB\, focused on nuclear structure\, nuclear astrophysics\, fundamental sym metries\, and isotopes of importance to applications. The FRIB Decay Stati on Initiator (FDSi)\, led by the FDSi Coordination Committee and supported by the FDSi Group and Working Groups\, is the initial stage of the FRIB D ecay Station (FDS). The FDSi is primarily an assembly of the best detector s currently available in the community within an integrated infrastructure . An overview of the FDSi and its active gas\, silicon\, and scintillator implant detectors will be given\, including their performance over the fir st two years of FRIB operations.\n\n*This material is based upon work supp orted by the U.S. Department of Energy\, Office of Science\, Office of Nuc lear Physics.\n\nhttps://indico.ific.uv.es/event/7777/contributions/26329/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26329/ END:VEVENT BEGIN:VEVENT SUMMARY:Upgrade of the Belle II vertex detector with CMOS pixel technology DTSTART;VALUE=DATE-TIME:20250324T160000Z DTEND;VALUE=DATE-TIME:20250324T163000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26333@indico.ific.uv.es DESCRIPTION:Speakers: Carlos Marinas (IFIC)\nThe Belle II experiment curre ntly records data at the SuperKEKB e+e- collider\, which holds the world l uminosity record of 5.1x10^34 cm-2.s-1 and plans to push up to 6x10^35 cm- 2 s-1. In such luminosity range for e+e- collisions\, the inner detection layers should both cope with a hit rate dominated by beam-induced parasiti c particles and provide tracking precision. A R&D program has been establi shed to develop a new pixelated vertex detector (VTX)\, based on the most recent CMOS pixel detection technologies. The VTX design matches the curre nt vertex detector radial acceptance\, from 14 mm up to 140 mm. It include s 5 layers for an overall material budget lower than 3 % of X0. All layers are equipped with the same depleted monolithic active pixel sensors\, OBE LIX\, adapted from the TJ-Monopix2 sensor originally developed for the ATL AS experiment. This contribution will review the latest results on chip de sign and characterization and on the detection modules early prototyping.\ n\nhttps://indico.ific.uv.es/event/7777/contributions/26333/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26333/ END:VEVENT BEGIN:VEVENT SUMMARY:Overview and Closing DTSTART;VALUE=DATE-TIME:20250326T144500Z DTEND;VALUE=DATE-TIME:20250326T150000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26358@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/7777/contributions/26358/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26358/ END:VEVENT BEGIN:VEVENT SUMMARY:Round table DTSTART;VALUE=DATE-TIME:20250326T133000Z DTEND;VALUE=DATE-TIME:20250326T144500Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26357@indico.ific.uv.es DESCRIPTION:https://indico.ific.uv.es/event/7777/contributions/26357/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26357/ END:VEVENT BEGIN:VEVENT SUMMARY:Machine Learning techniques for background noise identification in ATLAS DTSTART;VALUE=DATE-TIME:20250326T103000Z DTEND;VALUE=DATE-TIME:20250326T110000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26356@indico.ific.uv.es DESCRIPTION:Speakers: Emma Torró Pastor (IFIC)\nThe ATLAS experiment at t he LHC presents a very complex data scenario\, with tens of protons collid ing in the same bunch interaction every 25ns at high energies of 13 TeV. T ogether with the SM processes generated in the collisions\, data analyses have to deal with other sources of noise like detector effects of beam-ind uced backgrounds. In this talk we’ll review different machine-learning t echniques to identify these kinds of background in unconventional searches like those looking for potential new long-lived particles\, whose signatu res in the detector resemble those of the background noise and cannot easi ly be discriminated from them.\n\nhttps://indico.ific.uv.es/event/7777/con tributions/26356/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26356/ END:VEVENT BEGIN:VEVENT SUMMARY:Waveform analysis with WAS3ABi for measurements of ion implantatio n and charged-particle decays DTSTART;VALUE=DATE-TIME:20250326T113000Z DTEND;VALUE=DATE-TIME:20250326T120000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26355@indico.ific.uv.es DESCRIPTION:Speakers: Tik Tsun Yeung (The University of Tokyo)\nWith the i ncreasing popularity of modern digitizers\, it is becoming more common for signal waveform to be recorded in addition to energy and time information in experiments. The waveform was typically used for better signal timing and pulse shape discrimination. In this talk\, we will focus on WAS3ABi\, an active stopper made of four layers of double-sided silicon strip detect ors. In an experiment using WAS3ABi\, there were multiple challenges in th e analysis due to limitations of the experimental setup. We will demonstra te how waveform analysis overcomes these obstacles and improves measuremen ts of ion implantation and charged-particle decays.\n\nhttps://indico.ific .uv.es/event/7777/contributions/26355/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26355/ END:VEVENT BEGIN:VEVENT SUMMARY:Analysis techniques and results from AIDA at DESPEC at GSI DTSTART;VALUE=DATE-TIME:20250326T110000Z DTEND;VALUE=DATE-TIME:20250326T113000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26354@indico.ific.uv.es DESCRIPTION:Speakers: Nicolas Hubbard (GSI)\nAIDA (The Advanced Implantati on Detector Array) has been employed at the DESPEC (DEcay SPECtroscopy) ex periments at GSI since 2019 as the key detector and active stopper\, measu ring both the implants (ca. 1-10 GeV) and the subsequent decays (ca. 200-1 000 keV)\, exploiting advanced electronics to cover the high dynamic range \, and high pixilation to allow implantation rates of approximately 1 kHz to measure half-lives of seconds. New DAQ and analysis techniques have bee n developed to analyse the complex triggerless data from AIDA and to combi ne it with other DESPEC detectors (such as gamma-ray detectors) and the FR S (FRagment Seperator) which provides the secondary beams\, using the Whit e Rabbit timing system to correlate data. Likewise techniques for correlat ing the implants to their subsequent decays (over many seconds and thousan ds of events later). This talk will discuss the techniques development and some of the results so far.\n\nhttps://indico.ific.uv.es/event/7777/contr ibutions/26354/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26354/ END:VEVENT BEGIN:VEVENT SUMMARY:Evolution and Applications of Silicon Detectors in Nuclear Physics and Astrophysics DTSTART;VALUE=DATE-TIME:20250326T093000Z DTEND;VALUE=DATE-TIME:20250326T100000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26353@indico.ific.uv.es DESCRIPTION:Speakers: Daniele Mengoni (University and INFN - Padova)\nSili con detectors are widely used in various fields of physics\, including nuc lear physics and astrophysics. Over time\, several generations of detector s have succeeded one another\, becoming increasingly performant in terms o f precision and accuracy of observables\, as well as in their number and t ype. In this contribution\, I will discuss different types of detectors\, from EUCLIDES to GRIT\, including methods for their characterization and e valuation of their performance.\n\nhttps://indico.ific.uv.es/event/7777/co ntributions/26353/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26353/ END:VEVENT BEGIN:VEVENT SUMMARY:The Silicon PIe DEtectoR for low-energy Coulomb-excitation DTSTART;VALUE=DATE-TIME:20250326T090000Z DTEND;VALUE=DATE-TIME:20250326T093000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26352@indico.ific.uv.es DESCRIPTION:Speakers: Marco Rocchini (INFN Firenze)\nThe low-energy Coulom b-excitation technique is capable of providing unique information on stati c electromagnetic moments of short-lived excited nuclear states\, includin g non-yrast states. The process selectively populates low-lying collective states and is ideally suited to study phenomena such as shape coexistence and the development of exotic deformation (triaxial or octupole shapes) i n stable and radioactive nuclei.\n\nIn this talk\, I will present the SPID ER detector\, an array of segmented silicon detectors for low-energy Coulo mb-excitation experiments designed as an ancillary device for modern gamma -ray spectrometers\, and currently used at the INFN Legnaro National Labor atories (LNL). Also\, I will talk about some highlight of the past experim ental campaigns and discuss some features and capabilities of the detector .\n\nhttps://indico.ific.uv.es/event/7777/contributions/26352/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26352/ END:VEVENT BEGIN:VEVENT SUMMARY:A novel 139La-GPS scintillator for β-implantation detectors in de cay spectroscopy at fragmentation facilities DTSTART;VALUE=DATE-TIME:20250326T083000Z DTEND;VALUE=DATE-TIME:20250326T090000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26351@indico.ific.uv.es DESCRIPTION:Speakers: Rin Yokoyama (Center for Nuclear Study\, University of Tokyo\, 2-1 Hirosawa\, Wako\, Saitama 351-0198\, Japan)\nThe study of 𝛽𝛽-decays far from stability is essential to understand the evolutio n of nuclear structure and nucleosynthesis processes. 𝛽𝛽-decay exper iments with such exotic nuclei involve intense cocktail beams from fragmen tation facilities. The role of an implantation detector in these experimen ts is to measure the energy and the positions of both heavy ion implantati on and 𝛽𝛽-ray emission to correlate the identified ion with 𝛽𝛽 -decay events.\nDue to the lack of time resolution of conventional Silicon strip detectors\, we have previously developed a new implantation detecto r using a segmented YSO (Yttrium Orthosilicate) scintillator array for tim e-of-flight spectroscopy of the 𝛽𝛽-delayed neutron emission [1]. The new detector was implemented in 𝛽𝛽-delayed neutron measurement expe riments at RIKEN RI Beam Factory\, and it was confirmed that the YSO detec tor correlates 𝛽𝛽 and implant events better due to its higher effect ive atomic number Z~35.\nThe success of the YSO detector motivated us to d evelop a new detector using heavier scintillator material. We will report on the design and some test results of the new detector using (Gd\,139La)2 Si2O7:Ce (A=139 enriched La-GPS [2\, 3] ) crystal which has a much higher effective atomic number (Z~51) and is expected to have better 𝛽𝛽-imp lant efficiency with a lower background.\n\n[1] R. Yokoyama et al.\, NIM A 937\, 93-97 (2019)\n[2] S. Kurosawa et al.\, NIM A 744\, 30-34 (2014)\n[3 ] S. Kurosawa et al.\, IEEE TNS 65\, 2136-2139 (2018)\n\nhttps://indico.if ic.uv.es/event/7777/contributions/26351/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26351/ END:VEVENT BEGIN:VEVENT SUMMARY:Tracking arrays and the development of imaging capabilities DTSTART;VALUE=DATE-TIME:20250326T080000Z DTEND;VALUE=DATE-TIME:20250326T083000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26350@indico.ific.uv.es DESCRIPTION:Speakers: Andres Gadea Raga (IFIC CSIC-University of Valencia )\nNew developments on detection systems are have been going on since the mid 90's order to build arrays with improved sensitivity by increasing pea k to total (P/T) and efficiency. The adopted solution is the use of large volume GeHP detector with position sensitivity based on segmented contacts and Pulse Shape Analysis (PSA). In these new arrays the target can be sur rounded by hundreds of position sensitive GeHP detectors\, in a 4pi solid angle geometry\, in such a way that up to about the 80% of the solid angle is covered\, thus increasing the detection efficiency dramatically. Using digital sampling electronics and PSA it is possible to determine energy\, position and time of each gamma-ray interaction and\,\nsubsequently\, app lying tracking algorithms it is possible to reconstruct the scattering pat hs of incident gamma-rays inside the detector [1].\n\nA further improvemen t would be to use detectors with higher position resolution\, e.g. planar GeHP DSSD detectors\, as implanters or first scatterers\, which will provi de the array with imaging capabilities [2].\n\nIn this contribution we wil l show the conceptual ideas and the R&D on detector technologies performed by our collaboration.\n\n[1]S. Akkoyun et al.\, AGATA — Advanced Gamma Tracking Array\, Nucl. Instrum. Meth. A 668 (2012) 26\n[2]M. Doncel et al. "Conceptual design of a high resolution Ge array with tracking and imagin g capabilities for the DESPEC (FAIR) experiment." Journal of Instrumentati on 10.06 (2015) P06010.\n\nhttps://indico.ific.uv.es/event/7777/contributi ons/26350/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26350/ END:VEVENT BEGIN:VEVENT SUMMARY:Exploring Perovskite Scintillators: Potential and Properties for R adiation Detection DTSTART;VALUE=DATE-TIME:20250325T165000Z DTEND;VALUE=DATE-TIME:20250325T171000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26349@indico.ific.uv.es DESCRIPTION:Speakers: Daniele Gonçalves Mesquita (CSIC & UFPel)\nPerovski te materials possess a unique crystal structure and show great promise in applications such as solar cells\, LEDs\, lasers\, and photodetectors. Rec ently\, they have gained attention as efficient X-ray detectors\, particul arly lead halide perovskites (HPs)\, which are known for their excellent l uminescence\, high mobility-lifetime product (μτ)\, and sensitivity to X -rays [1]. Their adjustable band gap and low cost enable the production of thick films over large areas\, making them attractive alternatives to com mercial products such as thallium-doped cesium iodide (CsI:Tl) and amorpho us silicon (Si) [2].\nAdditionally\, studies on the scintillation properti es of CsCu₂X₃ and Cs₃Cu₂X₅ (where X: Cl⁻\, Br⁻\, I⁻)\, whi ch are based on halide perovskite structures\, have revealed their lumines cence induced by charged particles and a simple\, cost-effective depositio n method that does not require external dopants. These materials have also been investigated as hybrid detectors to enhance their efficiency [3].\nT he search for new materials in this area has led to the identification of the radioluminescent properties of barium zirconate perovskite (BaZrO₃)\ , discovered by Moreira and collaborators through crystal growth via the m icrowave-assisted hydrothermal method [4]. BaZrO₃\, a material with a wi de band gap\, offers unique advantages\, demonstrating increased luminesce nt emission proportional to the growth time. Additionally\, it exhibits st ructural stability under high doses of irradiation and has been investigat ed as a UV detector [5\,6].\nBuilding on these advances\, this work aims t o explore BaZrO₃ as an innovative material for ionizing radiation detect ion that is free of lead. Pure BaZrO₃ and rare-earth-doped BaZrO₃ mate rials were grown using the microwave-assisted hydrothermal method and char acterized through diffuse reflectance and radioluminescence spectroscopic analyses. These characterizations identified an experimental band gap of a pproximately 5 eV and a radioluminescent emission peak in the 450 nm range \, allowing for variations in emission with modifications in growth and do ping parameters.\nThrough the deposition of thin films on polystyrene subs trates via the doctor blade method\, their timing capabilities are being i nvestigated in comparison to standard detectors\, such as commercial LYSO and CsI scintillators coupled with photodetectors (SiPMs). By combining ad justable properties\, a wide band gap\, and enhanced performance\, the inv estigation of new perovskites presents a strong candidate for redefining r adiation detection paradigms\, contributing to the development of more eff ective and accessible systems.\n\n[1] Materials Today\, 2022\, 55\, 110– 136.\n[2] RSC Adv.\, 2024\, 14\, 6656.\n[3] Adv. Funct. Mater.\, 2022\, 22 06645.\n[4] Scripta Mater.\, 2011\, 64\, 118–121.\n[5] Radiat. Phys. Che m.\, 2017\, 139\, 152–155.\n[6] Inorg. Chem.\, 2024\, 63\, 5865−5871.\ n\nhttps://indico.ific.uv.es/event/7777/contributions/26349/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26349/ END:VEVENT BEGIN:VEVENT SUMMARY:Test of the segmented plastic implantation detector with RI beam a t the RIBF DTSTART;VALUE=DATE-TIME:20250325T171000Z DTEND;VALUE=DATE-TIME:20250325T173000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26348@indico.ific.uv.es DESCRIPTION:Speakers: Quanbo Zeng (IMP\,CAS)\nThe decay experiment was con ducted by recycling the secondary beam transported after the interaction c ross-section and mass measurements at the RIBF. In this experiment\, the p erformance of the segmented plastic implantation detector "GARi" was teste d. The position reconstructions of ion and beta events were investigated\, which were used to determine the beta-decay half-lives of implanted ions. Some nanosecond-scale half-lives of low-lying states were also measured t hrough beta-gamma correlations.\n\nhttps://indico.ific.uv.es/event/7777/co ntributions/26348/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26348/ END:VEVENT BEGIN:VEVENT SUMMARY:Slowing down exotic beams from the FRS: the FRS Ion Catcher experi ence DTSTART;VALUE=DATE-TIME:20250325T153000Z DTEND;VALUE=DATE-TIME:20250325T155000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26346@indico.ific.uv.es DESCRIPTION:Speakers: Samuel Ayet San Andrés (Instituto de Física Corpus cular - CSIC UV)\nFor a successful experiment with slowed down exotic beam s at a fragmentation facility\, certain common steps have to be followed i ncluding identification\, separation and an accurate set of their energy t o match the range into the detector to be used. At GSI\, primary beams are accelerated to relativistic energies to impinge in a production target at the entrance of the Fragment Separator (FRS) where exotic nuclei are prod uced via projectile fission or fragmentation. The FRS has the capabilities of identification\, separation and selection of the exotic species of int erest and setting their energy by means of degraders to match their range to match the experimental needs: active stopper\, ion catcher\, ancillary detector…etc. In this contribution we will share the experiences gathere d by slowing down exotic nuclei in an ion catcher\, the FRS Ion Catcher\, showing some aspects and learned lessons which might be of interest to oth er experiments.\n\nhttps://indico.ific.uv.es/event/7777/contributions/2634 6/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26346/ END:VEVENT BEGIN:VEVENT SUMMARY:Development and testing of the DESPEC FIMP implanter DTSTART;VALUE=DATE-TIME:20250325T163000Z DTEND;VALUE=DATE-TIME:20250325T165000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26345@indico.ific.uv.es DESCRIPTION:Speakers: Klemen Žagar (Institut "Jožef Stefan")\nDecay spec troscopy experiments aim at a detailed study of the decay mechanisms in th e most exotic nuclear species at reach at FAIR\, with the measurements of decay half-lives\, competing decay modes\, and isomeric state identificati on. For the experimental program conducted by the DESPEC collaboration\, n uclides isolated by the FRS are stopped in the AIDA active implanter which is based on Si DSSSD detectors. Its role is to provide temporal and posit ional information on the implantations as well as the subsequent decays ( α or β)\, while providing rough energy deposition information to disting uish between the decay processes. Its drawback is a limited time resolutio n of over 1 μs. For fast timing measurements and neutron detection\, howe ver\, a time resolution better than 1 ns and the capability to detect and distinguish between ion implantations and subsequent decays are desired. T o fulfill these requirements\, a new Fibre IMPlanter (FIMP) was envisioned . The fundamental idea is to replace the DSSSD array with fibres made of a polystyrene-based scintillation material in thin PMMA cladding. The fibre s are assembled in layers of orthogonally running mats\, forming a fibre b lock. This design is based upon the assumption that β and α particles wi ll hit at least one fibre in two consecutive layers so that complete posit ion information is available. The mean β particle energy in the anticipat ed experiments will be in the order of 1 MeV\, while the maximum deposited energy may go up to 10 MeV. For α particles the stopping power is larger \, so they can be easily distinguished from β particles by their energy d eposition in each fibre. Implanted ions produce traces through the fibre l ayers ending with a Bragg peak at the implantation position. For very heav y ions\, the thickness required to stop all interesting species is just un der 1 cm. A small-scale FIMP prototype with custom front-end readout elect ronics and a mechanical construction paradigm suitable for scaling up to t he planned full size has been constructed. The fibres of a 12 mm thick\nbl ock are read out by 192 SiPMs arranged in lines of 16\, which cover the si de faces of the block and form three rings at different implantation depth s. The resulting high granularity allows FIMP to sustain a high count rate \, making it feasible to study several species at the same time. The SiPMs \, their corresponding preamplifiers\, and the fibre block itself are moun ted inside a light-tight 3D-printed plastic enclosure which enables their precise relative positioning. The electronics make use of a resistive mult iplexing matrix to reduce the required number of readout channels. Time an d energy information is extracted from the analog SiPM signals using discr ete implementations of constant fraction discriminators and time over thre shold circuits\, respectively. These produce differential signals that are subsequently sampled and processed by the ClockTDC system\, and are const ructed in a modular fashion in conjunction with a system control board\, a llowing for further detector developments. The detector system has recentl y been tested in combination with gammaray detectors for β-delayed γ cor relations using a 100Mo beam at the GSI/FAIR facility\, showing good perfo rmance. The design and preliminary results will be presented.\n\nhttps://i ndico.ific.uv.es/event/7777/contributions/26345/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26345/ END:VEVENT BEGIN:VEVENT SUMMARY:Advances in integrated front-end circuits for semiconductor detect ors DTSTART;VALUE=DATE-TIME:20250325T140000Z DTEND;VALUE=DATE-TIME:20250325T143000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26342@indico.ific.uv.es DESCRIPTION:Speakers: Stefano Capra (University of Milano)\nIn this talk t he latest advances in integrated pre-amplifiers for semiconductor detector s will be explored. In particular\, an innovative device will be described that allows to perform simultaneously high-energy and low energy\, high r esolution spectroscopy. This device also minimizes the deadtime in case of saturation and configures itself as the ideal readout solution to detect both heavy ion implantation and the following decay. This integrated pre-a mplifier is particularly suitable for high-density multichannel solution\, being characterized also by extremely low power consumption. Integration of this preamp with existing DAQ systems will also be also discussed.\n\nh ttps://indico.ific.uv.es/event/7777/contributions/26342/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26342/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of DINTESPEC project at GSI-FAIR DTSTART;VALUE=DATE-TIME:20250325T133000Z DTEND;VALUE=DATE-TIME:20250325T140000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26341@indico.ific.uv.es DESCRIPTION:Speakers: Marta Polettini (GSI Helmholtzzentrum für Schwerion enforschung)\nThe HISPEC-DESPEC collaboration has an extended experimental program in the FAIR Phase-0 campaign focused on decay studies. Such studi es are based on active implantation detectors surrounded by a gamma array\ , allowing to determine large sets of experimental quantities: α and/or β decay half-lives\, internal de-excitation schemes\, lifetimes of nuclea r states\, full β-strength and Pn measurements\, exploiting ad-hoc develo ped techniques.\nThe goal of the DINTESPEC project consists in the develop ment of a new concept for implantation and decay detectors to improve the DESPEC setup performances in decay studies\, which are presently suffering of high levels of noise. To overcome this\, a first prototype of commerci ally available BB7 DSSD layer from Micron was developed and tested at GSI. The first tests were carried out with analogue electronics in the lab as well as in-beam.\nThe present status of the project as well as future plan s will be reported on.\n\nhttps://indico.ific.uv.es/event/7777/contributio ns/26341/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26341/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of silicon strip and pixel detectors in nuclear physic s experiments DTSTART;VALUE=DATE-TIME:20250325T113000Z DTEND;VALUE=DATE-TIME:20250325T120000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26340@indico.ific.uv.es DESCRIPTION:Speakers: Oleg Kiselev (GSI Helmholtzzentrum für Schwerionenf orschung GmbH\, 64291 Darmstadt\, Germany)\nIn the past few decades\, nucl ear physics research has seen tremendous progress as several radioactive-i on beam facilities with unprecedented beam intensities are coming online a round the world. These facilities open up the way to access and\nstudy the most exotic nuclei ever produced on earth\, bringing us closer to the elu sive nuclear systems that play a crucial role in astrophysical sites such as supernovas and neutron stars. The advent of this new era has also been driven by the new\, dedicated apparatuses and in particular the new\, stat e-of-the-art detection systems that employ the latest technological advanc es in ionizing detection technology\, data acquisition and data processing . Silicon detectors\, strip and pixel\, play a particularly important role in these apparatuses. \nApplication of these detectors within the R3B and EXPERT setups at GSI are discussed.\n\nhttps://indico.ific.uv.es/event/77 77/contributions/26340/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26340/ END:VEVENT BEGIN:VEVENT SUMMARY:Proton decay studies with ACTAR TPC DTSTART;VALUE=DATE-TIME:20250325T103000Z DTEND;VALUE=DATE-TIME:20250325T110000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26338@indico.ific.uv.es DESCRIPTION:Speakers: Jérôme Giovinazzo (LP2iB / CNRS-IN2P3 / Univ. Bord eaux)\nThe ACTAR TPC [1\,2] detector has been designed as a versatile devi ce for reaction and decay studies in nuclear physics. It is a gas detector working as a time projection chamber (TPC)\, than can be used either in “active target” mode where the gas is used as a target for the nuclear reaction or as an active stopper for implantation-decay experiments. The first experimental campaigns took place at GANIL\, where two experiments p erformed at the LISE3 separator demonstrated that the detector is a powerf ul instrument to measure the exotic decay modes involving proton emissions . The first experiment aimed at measuring the proton radioactivity of 54mN i isomer (10+)\, with a very short half-life (155 ns) in order to determin e its complete decay scheme [3-5]. In addition\, the beam time also allowe d elucidating the decay of the first observed proton radioactivity\, from the isomeric state (19/2−) of 53mCo [6]\, involving high angular momentu m protons with ℓ = 7 and 9. The second experiment was dedicated to the s tudy of the 2-proton radioactivity of 48Ni [7]\, in the context of the rec ent development of a new theoretical framework (Gamow Coupled Channels cal culation) to describe this exotic decay mode at the proton drip-line. Duri ng this experiment\, many other nuclei in the region of 48Ni where implant ed in the active volume of the detector. Despite the device settings were not optimized for this\, the beta-delayed emission of 1\, 2 or 3 protons f rom these nuclei can be studied\, opening large opportunities for this typ e of decays. Ideally\, the association of a gamma detection to ACTAR TPC\, as already foreseen\, would significantly benefit to such studies.\nThe d ecay experiments performed with ACTAR TPC\, from realization to analysis\, cover all topics suggested for the workshop.\n\n[1] B. Mauss et al.\, Nuc lear Inst. and Methods in Physics Research\, A 940 (2019) 498–504\n[2] J . Giovinazzo et al.\, Nuclear Inst. and Methods in Physics Research\, A 95 3 (2020) 163184\n[3] J. Giovinazzo et al.\, Nature Comm. 12\, 4805 (2021)\ , doi.org/10.1038/s41467-021-24920-0\n[4] D. Rudolph et al.\, Physics Lett ers B\, 2022\, 830\, 137144\n[5] J. Giovinazzo et al.\, Nuclear Inst. and Methods in Physics Research\, A 953 (2022) 167447\n[6] L.G. Sarmiento\, T. Roger et al.\, Nature Comm.\, 14\, 5961 (2023)\, doi.org/10.1038/s41467-0 23-39389-2\n[7] A. Ortega Moral\, PhD thesis (2023)\, University of Bordea ux\n\nhttps://indico.ific.uv.es/event/7777/contributions/26338/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26338/ END:VEVENT BEGIN:VEVENT SUMMARY:Modeling of Light Production in Inorganic Scintillators DTSTART;VALUE=DATE-TIME:20250325T093000Z DTEND;VALUE=DATE-TIME:20250325T100000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26337@indico.ific.uv.es DESCRIPTION:Speakers: Ben Kreider (University of Tennessee\, Knoxville)\nT he detection of heavy ions and light particles in inorganic scintillators has been recently implemented in fragmentation facilities for measurements of beta decay and charged particle emission. One of the challenges of usi ng scintillators in these experiments is the need to simultaneously detect energetic ions\, which deposit GeV energy\, and subsequent decays\, which can deposit less than 1 MeV. Detection of signals with such a wide dynami c range in scintillator material is only possible due to light quenching\, which drastically reduces the scintillator’s light output for heavy ion s. This effect has been studied experimentally\, and a parametrization of this effect based on the models of Birks [1\,2] and others [3] was propose d. Following these approaches\, we developed a method to predict light que nching for various combinations of heavy ions and scintillator materials b ased on recent experimental measurement. This method can be used to plan f ragmentation experiments in different energy regimes. I will present the f indings from our model and compare them with the experimental results.\n\n [1] J. Birks. Proc. Phys. Soc. A 64\, 874 (1951)\n[2] Y. Koba et al. Progr ess in Nuclear Science and Technology 1\, 218 (2011)\n[3] A. Meyer and R. Murray. Phys. Rev. 128\, 98 (1962)\n\nhttps://indico.ific.uv.es/event/7777 /contributions/26337/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26337/ END:VEVENT BEGIN:VEVENT SUMMARY:βPlast\, a plastic scintillator for fast timing and decay spectro scopy DTSTART;VALUE=DATE-TIME:20250325T090000Z DTEND;VALUE=DATE-TIME:20250325T093000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26336@indico.ific.uv.es DESCRIPTION:Speakers: Carole Chatel (Institut für Kernphysik\, Technische Universität Darmstadt\, Schlossgartenstrasse 9\, 64289\, Darmstadt\, Ger many)\nDEcay SPECtroscopy (DESPEC) experiments [1] are part of the NUSTAR collaboration\, one of the four scientific pillars of the FAIR/GSI facilit y. Those experiments aim at studing the properties of exotic nuclei using high- resolution decay spectroscopy. They are currently performed at the F Ragment Separator (FRS) and will be\, in the future\, at the Super-FRS fac ility at FAIR\, at GSI. The DESPEC setup comprises a series of state-of-th e-art detection systems tailored to the experimental goals. The heavy ion implantation stack is the core of this setup: a so-called ‘snout’ wher ein exotic ions are implanted in detectors. This stack comprises usually 1 to 3 layers of highly- segmented AIDA double-sided silicon strip detector s [2] which are sandwiched between two “βPlast” plastic\nscintillator detectors for beta-particles\, placed upstream and downstream. Implanted ions emit gamma-rays that can then be measured by different systems such a s the FATIMA array of LaBr3(Ce) detectors [3]\, DEGAS HPGe detectors [4] o r the DTAS Total Absorption Spectrometer\, which enables fast-timing\, hig h-precision or high-efficiency measurements\, respectively.\nThe βPlast d etectors are of paramount importance. They are indeed able to provide exce llent timing resolution for β particles emitted by the exotic ions of int erest to enable β- timing-measurements as well as a veto for punchthro ugh events\, for example. Several configurations of those detectors have b een used in recent years\nduring FAIR Phase-0 experiments. The last one is composed of a 247.50.3 cm3 rectangular monolithic plastic sheet coupled a t edges by an optical silicon pad with arrays of 3*3 mm2 aligned silicon P hotoMultipliers (SiPMs).\nEach long and short side contains respectively 4 8 and 16 aligned SiPMs\, with adjacent pairs of SiPMs gathered to form\, i n total\, 64 channels per detector. Those are connected to the TAMEX multi -channel TDCs\, developed in-house at GSI\, in order to exploit the fast-t iming characteristics of the βPlast.\nThis presentation will focus on the technical details of the detectors and on its characterisation. It will t hen describe the recent development that aimed at improving detector perfo rmance and accessing the position of a particle by creating a lookup table using time-differences between the SiPMs. Finally\, it will give an overv iew of future development work and redesign.\n\n[1] A.K. Mistry et al.\, T he DESPEC setup for GSI and FAIR\, Nucl. Instrum. Methods in phys. Res. A 1033\, 166662 (2022)\n[2] O. Hall et al.\, The Advanced Implantation Detec tor Array\, Nucl. Instrum. Methods in phys. Res. A 1050\, 168166 (2023)\n[ 3] M. Rudigier et al.\, FATIMA – Fast TIMing Array for DESPEC at FAIR\, Nucl. Instrum. Methods in phys. Res. A 969\, 163967 (2020)\n[4] G.S. Li et al.\, Characteristics of the DEGAS-FATIMA Hybrid setup for the DESPEC pro gram at NUSTAR\, Nucl. Instrum. Methods in phys. Res. A 987\, 164806 (2021 )\n\nhttps://indico.ific.uv.es/event/7777/contributions/26336/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26336/ END:VEVENT BEGIN:VEVENT SUMMARY:Active stopper concepts employing scintillators DTSTART;VALUE=DATE-TIME:20250325T080000Z DTEND;VALUE=DATE-TIME:20250325T083000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26334@indico.ific.uv.es DESCRIPTION:Speakers: Juergen Gerl (GSI/FAIR)\nBesides active stoppers wit h segmented Si detectors\, plastic scintillator based approaches are follo wed within the DESPEC collaboration for experiments at the fragmentation f acilities at GSI and FAIR. The main advantage is the excellent fast timing properties of plastic scintillators and the relative simplicity and robus tness of the signal generation and processing.\nTwo distinct projects are currently pursued\, bPlast and FIMP. The bPlast detector consists of 3 mm thick plastic sheets with SiPM readout along the edges. It can detect impl anted ions and beta or alpha particles from subsequent decays. bPlast has a position sensitivity in the order of cm and a sub ns time resolution. FI MP consists of orthogonal layers of scintillating fibers\, pushing the pos ition resolution to the mm range.\nThe concepts\, current achievements\, c hallenges and limitations will be discussed.\n\nhttps://indico.ific.uv.es/ event/7777/contributions/26334/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26334/ END:VEVENT BEGIN:VEVENT SUMMARY:A novel active stopper based on hetero-structured BGO scintillator s functionalized with 2D-perovskites and chalcogenide semiconductors DTSTART;VALUE=DATE-TIME:20250324T170000Z DTEND;VALUE=DATE-TIME:20250324T173000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26332@indico.ific.uv.es DESCRIPTION:Speakers: Teresa Kurtukian Nieto (CSIC-IEM)\nScintillator-base d detection systems are in wide use since many years and in many applicati ons ranging from nuclear and particle physics experiments to medical imagi ng and security. Their physical properties like density\, light yield\, li nearity of the detector response and operational speed\, but also their re sistance to harsh radiation load\, their insensitivity to small changes in operational parameters and the widely available production capabilities\, make them one of the\nmost popular devices for the detection and the ener gy measurement of charged and neutral particles interacting with material structures.\nThe timing resolution of scintillators is to first order prop ortional to the square root of the photon density (number of produced phot ons per time interval)\, which can itself be expressed as the ratio of the emission decay time and the light yield of the scintillator. Therefore\, to minimise timing resolution\, scintillator development aims at achieving a maximum light yield with the shortest possible decay times.\nConvention al commonly used scintillators produce an amount of light proportional to the energy deposited by charged or neutral particles. The energy transfer from initial ionisation in the bulk material to the luminescence centres i s complex and leads to an intrinsic time-resolution limit in photoproducti on due to the stochastic relaxation processes of the hot electron-hole pai rs produced by the impact of radiation on the crystal material. To go belo w this intrinsic limitation\,\nvarious ways of exploiting faster photon pr oduction mechanisms have been investigated\, among which the development o f semiconductor nanomaterials represents a promising route towards fast ti ming. In direct-band-gap-engineered semiconductor nanostructures\, one eff ect of quantum confinement consists of a significant enhancement of Coulom b interactions between charge carriers of electron-hole pairs\, coherent a nd multiexciton states. This plays a significant role in enhancing the tra nsition dipole moment of absorption and emission and can thus increase the rate of fast radiative transitions resulting in scintillation decay times below 1 ns.\nSeveral types of scintillating nanomaterials with different levels of confinement (nanoplatelet\, quantum wire\, quantum dots) have be en studied over many years\, reaching a fast photon emission with characte ristic radiative decay times in the range of nanosecond or sub-nanosecond. The very short decay times of such nanocrystals together with the possibi lity to tune their emission spectra open new prospects for timing detector s for particle physics experiments\, such as precision timing layers for t ime tagging of collision tracks or scintillators for the energy measuremen t of particles in combination with high time resolution.\nHetero-structure d scintillations obtained by the growth of new fast scintillators\, e.g.\, nanoparticle 2D perovskites over a heavy scintillator component\, like Bi smuth Germanate (Bi4Ge3O12) BGO\, will allow to use the system as an activ e stopper for decay experiments of rare isotopes. This system allows to st op and detect at the same time beta-decaying exotic radioactive nuclei\, m easuring electrons\, neutrons (through 6Li film converter) and gamma rays in the same detector\, having good electron-detection efficiency\, gamma c apture (stopping power) and scintillation performance (ultra-fast and high light yield emission).\nIn this talk\, first results based on BaZrO3 pero vskites will be presented\, together with prospects for using further mate rials as A4SnX4 chalcogenide family compounds with optical properties very similar to GaAs.\n\nhttps://indico.ific.uv.es/event/7777/contributions/26 332/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26332/ END:VEVENT BEGIN:VEVENT SUMMARY:Scintillators for Fast Charged Particle Decay Experiments DTSTART;VALUE=DATE-TIME:20250324T163000Z DTEND;VALUE=DATE-TIME:20250324T170000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26331@indico.ific.uv.es DESCRIPTION:Speakers: Ian Cox (University of Tennessee\, Knoxville)\nFor p roton-rich nuclei\, charged particle emission competes with beta decay and electron capture. One notable region of this competition is the nuclei n ortheast of 100Sn\, where alpha-decay becomes prominent\, and the proton d rip line competes with proton emitters\; see the cases of as 109I and 108I [1\,2]. With decreasing half-lives close to the drip line\, scintillator s become optimal for measuring sequential decay signals [3\,4]. This work will discuss the methods of identifying pileup in scintillator signals\, techniques for separating pileup signals\, the current limitations of fast decay measurements\, and correction techniques for scintillators implemen ted to measure charged particles. Specifically\, this work will discuss t he alpha-decaying nuclei near 100Sn\, such as the decay chain of 109Xe alo ng with the individual decays of 105Te and 108I from a recent experiment a t RIBF RIKEN. The advantages and drawbacks of using scintillators to meas ure these nuclei will be discussed.\n\n[1] C. Mazzocchi et al. Phys. Rev. Lett. 98\, 212501 (2007)\n[2] K. Auranen et al. Phys. Lett. B 792\, 187-19 2 (2019)\n[3] Y. Xiao et al. Phys. Rev. C 100\, 034315 (2019)\n[4] R. Yoko yama et al. NIM A 937\, 93-97 (2019)\n\nhttps://indico.ific.uv.es/event/77 77/contributions/26331/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26331/ END:VEVENT BEGIN:VEVENT SUMMARY:Beta counting systems at RIBF: requirements and options DTSTART;VALUE=DATE-TIME:20250324T143000Z DTEND;VALUE=DATE-TIME:20250324T150000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26328@indico.ific.uv.es DESCRIPTION:Speakers: Shunji Nishimura (RIKEN)\nThe beta-counting system h as various requirements that depend on the conditions of radioactive isoto pe beams and the specific physics cases. We conducted decay experiments us ing double-sided silicon strips and plastic scintillation detectors. In my talk\, I will report on the performance of the beta-counting systems used at RIBF and discuss the challenges involved in overcoming their associate d problems.\n\nhttps://indico.ific.uv.es/event/7777/contributions/26328/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26328/ END:VEVENT BEGIN:VEVENT SUMMARY:Advanced Implantation Detector Array (AIDA) DTSTART;VALUE=DATE-TIME:20250324T140000Z DTEND;VALUE=DATE-TIME:20250324T143000Z DTSTAMP;VALUE=DATE-TIME:20260511T174151Z UID:indico-contribution-7777-26327@indico.ific.uv.es DESCRIPTION:Speakers: Thomas Davinson (University of Edinburgh)\nOn behalf of the AIDA collaboration\n\nThe Advanced Implantation Detector Array (AI DA) is a state-of-the-art detector system for the measurement of the decay properties of exotic nuclei at fragmentation/fission facilities. Using hi ghly segmented\, large area double-sided silicon strip detectors the posit ions\, energies and times of high energy implants and their subsequent low energy decays can be correlated at high implantation rates. To process si gnals from the large number of strips application specific integrated circ uits provide low and high gain signal processing per strip with high dynam ic range. We will discuss operation at RIBF (RIKEN)\, FRS (GSI) and CRYRIN G (GSI).\n\nhttps://indico.ific.uv.es/event/7777/contributions/26327/ LOCATION:Parc Científic de la Universitat de València Salón de Actos Ed ificio de Cabecera Parque Científico URL:https://indico.ific.uv.es/event/7777/contributions/26327/ END:VEVENT END:VCALENDAR