BEGIN:VCALENDAR VERSION:2.0 PRODID:-//CERN//INDICO//EN BEGIN:VEVENT SUMMARY:ESPPU Discussion DTSTART;VALUE=DATE-TIME:20241120T100000Z DTEND;VALUE=DATE-TIME:20241120T103000Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25585@indico.ific.uv.es DESCRIPTION:Joint session with LHC network and Future Accelerators network .\n\nhttps://indico.ific.uv.es/event/7664/contributions/25585/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25585/ END:VEVENT BEGIN:VEVENT SUMMARY:Detector R&D colllaborations discussion DTSTART;VALUE=DATE-TIME:20241120T091500Z DTEND;VALUE=DATE-TIME:20241120T100000Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25584@indico.ific.uv.es DESCRIPTION:Speakers: MaryCruz Fouz (CIEMAT)\nJoint session with Future Ac celerators Network\n\nhttps://indico.ific.uv.es/event/7664/contributions/2 5584/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25584/ END:VEVENT BEGIN:VEVENT SUMMARY:News and Instrumentation School discussion DTSTART;VALUE=DATE-TIME:20241120T080000Z DTEND;VALUE=DATE-TIME:20241120T091500Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25583@indico.ific.uv.es DESCRIPTION:Speakers: Ivan Vila Alvarez (Instituto de Física de Cantabria (CSIC-UC))\nhttps://indico.ific.uv.es/event/7664/contributions/25583/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25583/ END:VEVENT BEGIN:VEVENT SUMMARY:The SBND X-ARAPUCA system DTSTART;VALUE=DATE-TIME:20241119T153000Z DTEND;VALUE=DATE-TIME:20241119T154200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25527@indico.ific.uv.es DESCRIPTION:Speakers: Jorge Romeo (CIEMAT)\nSBND is a time-projection cham ber that collects ionisation electrons and scintillation photons from liqu id argon (LArTPC). It is located 110 m downstream the Booster Neutrino Bea m target at Fermilab and began taking data this year. The SBND physics pro gram is focused on neutrino-argon cross-sections and beyond the Standard M odel searches (sterile neutrinos\, heavy neutral leptons\, light dark matt er...). The photodetection system (PDS) provides trigger capabilities\, co smic-rays rejection (a large background due to the near-surface detector l ocation)\, and complementary calorimetry. The PDS includes PMTs and X-ARAP UCAs sensors\, a novel technology that features single photo-electron reso lution at cryogenic temperatures with large area coverage in a cost-effect ive fashion by trapping and guiding the light to arrays of SiPMs. SBND fea tures two types of X-ARAPUCAs\, one mostly sensitive to vacuum ultra-viole t (VUV) scintillation and one sensitive to visible light produced in the d etector by TPB-coated reflective foils. SBND is the only experiment curren tly testing the X-ARAPUCA technology in a neutrino beam over a period of s everal years\, and will provide key lessons for future detectors like DUNE . In order to characterize the sensor it is essential to estimate its phot on detection efficiency (PDE). In this talk\, we present an overview of th e SBND X-ARAPUCA system and the PDE measurements at cryogenic temperature carried out at the CIEMAT laboratory.\n\nhttps://indico.ific.uv.es/event/7 664/contributions/25527/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25527/ END:VEVENT BEGIN:VEVENT SUMMARY:HENSA++ for cosmic-ray neutrons spectrometry: project status and f uture developments DTSTART;VALUE=DATE-TIME:20241119T144500Z DTEND;VALUE=DATE-TIME:20241119T145700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25524@indico.ific.uv.es DESCRIPTION:Speakers: Álvaro Jesús Quero Ballesteros (Universidad de Gra nada)\nNeutrons are continuously produced as secondary radiation from cosm ic-ray interactions in Earth’s upper atmosphere. Characterizing these se condary neutrons has implications across multiple fields\, including envir onmental radioactivity [1]\, single event upsets (SEUs) in microelectronic s [2]\, cosmic-ray physics\, and space weather [3].\n\nThe High Efficiency Neutron Spectrometry Array (HENSA) project focuses on designing\, develop ing\, and utilizing high-efficiency neutron spectrometers [4]. The latest iteration\, HENSA++\, has been specifically optimized for studying cosmic- ray neutrons and their applications in space weather monitoring and enviro nmental dosimetry. HENSA++ operates on the same principles as Bonner Spher e Spectrometers (BSS) [5]\, but with topological modifications in detector geometry\, achieving up to a tenfold increase in detection efficiency com pared to standard BSS [6]. The HENSA++ array comprises sixteen He-3 tubes\ , each one surrounded by different materials\, including high-density poly ethylene moderators\, cadmium shielding\, and lead neutron multipliers\, p roviding spectral sensitivity across a range from thermal to GeV neutrons. \n\nIn this work\, we discuss the current status and mid-term perspectives of HENSA++. Preliminary results from the recent commissioning of the spec trometer and laboratory measurements conducted during solar storm conditio ns in 2024 will be presented. We will also outline future plans to install HENSA++ as a permanent cosmic-ray neutron monitoring station at the high- altitude Observatorio Astrofísico de Javalambre (OAJ).\n\n\nBibliography: \n[1] European Radiation Dosimetry Group (2004). Report 140: Cosmic Radiat ion Exposure of Aircraft Crew.\n[2] J. F. Ziegler\, et al. (1996). IBM Jou rnal of Research and Development\, 40(1).\n[3] J. A. Simpson (2000). Space Science Reviews\, 93\, p. 11–32.\n[4] https://www.hensaproject.org/\n[5 ] D.J. Thomas and A.V. Alevra (2002). NIMA\, 476\, p. 12–20.\n[6] B. Wie gel\, A.V. Alevra (2002). NIMA 476 (2002) 36–41.\n\nhttps://indico.ific .uv.es/event/7664/contributions/25524/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25524/ END:VEVENT BEGIN:VEVENT SUMMARY:Application of Timepix cameras in optical TPCs for 3D track and ev ents reconstruction in low-energy nuclear reaction DTSTART;VALUE=DATE-TIME:20241119T143000Z DTEND;VALUE=DATE-TIME:20241119T144200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25523@indico.ific.uv.es DESCRIPTION:Speakers: Cristina Cabo Landeira (Universidade de Santiago de Compostela)\nOptical Time Projection Chambers (opTPCs) equipped with high- resolution cameras enable the reconstruction of ionization tracks\, improv ing particle detection and identification\, making them ideal for studying complex and rare nuclear reactions. The Multilayer Thick Gas Electron Mul tipliers (MThGEMs) enhance the opTPC's performance by amplifying electrons and the scintillation light produced along the particle tracks.\nUsing a Timepix camera\, with its high spatial and temporal resolution\, further e nhances opTPCs performance by allowing detailed 3D reconstruction of parti cle tracks. This enables precise identification of interactions\, even in high-rate environments\, where distinguishing between genuine events and b ackground noise is essential. Timepix allows visualizing complete particle trajectories\, thus providing critical data on scattering angles and ener gy distributions.\nWe will present results from tests in different gases\, demonstrating how combining OTPCs\, MThGEMs\, and a Timepix camera improv es detection sensitivity\, resolution\, and the study of rare events acros s a wide range of nuclear phenomena.\n\nhttps://indico.ific.uv.es/event/76 64/contributions/25523/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25523/ END:VEVENT BEGIN:VEVENT SUMMARY:Performance evaluation of fast LaBr3(Ce) crystals equipped with fa st photomultipliers tubes DTSTART;VALUE=DATE-TIME:20241119T141500Z DTEND;VALUE=DATE-TIME:20241119T142700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25522@indico.ific.uv.es DESCRIPTION:Speakers: Miriam Caballero Rodríguez (UCM)\n**Abstract**\nIn the framework of the HISTARS (HIE-ISOLDE Timing Array for Reaction Studies ) project at ISOLDE/CERN it is planned to install a $\\gamma$-ray array fo r fast-timing measurements. State-of-the-art crystals are LaBr$_3$(Ce)[1][ 2][3] or CeBr$_3$[4][5] inorganic scintillators\, which are customarily f itted with fast photomultiplier tubes (PMTs) or SiPMs.\n\nIn this work\, w e have characterized four different head-on PMTs with bialkali photocathod e by Hamamatsu in combination with a LaBr$_3$(Ce) crystal with the shape o f a truncated cone 1.5" in height and with bases of 1.5" and 1" in diamete r. Among the chosen PMTs a customized version of the 2-inch 8-stage bialka li photocathode R9779[6] in the assembly H10570 is used as a reference. Th e other three\, newer PMTs\, are a 1.5-inch 8-stage R13408[7]\, and a 2-in ch 8-stage R13089 model[7]\, in two different assemblies\, H13719-Y006 and H13719-Y007.\n\nWe report on the time response at $^{22}$Na and $^{60}$Co photon energies using a fast digitizer module and signal processing metho ds based on a genetic algorithm for the time pick-up[8]. Results on energy resolution\, linearity\, and time walk will also be presented.\n\n*Keywor ds:* photomultiplier tube\, Hamamatsu R9779\, Hamamatsu R13408\, Hamamatsu R13089\, inorganic scintillator\, LaBr$_{3}$(Ce)\, digital signal process ing\, time resolution\, time walk\, fast timing \n\n**References**\n[1] V. Vedia\, H. Mach\, L. Fraile\, J. Udías\, S. Lalkovski\, Nuclear Instrume nts and Methods in Physics Research Section A: Accelerators\, Spectrometer s\, Detectors and Associated Equipment 795\, 144 (2015). DOI https://doi.o rg/10.1016/j.nima.2015.05.058. URL https://www.sciencedirect.com/science/a rticle/pii/S0168900215007172\n[2] V. Vedia\, M. Carmona-Gallardo\, L. Frai le\, H. Mach\, J. Udías\, Nuclear Instruments and Methods in Physics Rese arch Section A: Accelerators\, Spectrometers\, Detectors and Associated Eq uipment 857\, 98 (2017). DOI https://doi.org/10.1016/j.nima.2017.03.030. U RL https://www.sciencedirect.com/science/article/pii/S0168900217303704\n[3 ] L. Fraile\, V. Sánchez-Tembleque\, J. Benito\, M. García-Díez\, J. Ud ías\, V. Vedia\, Nuclear Instruments and Methods in Physics Research Sect ion B: Beam Interactions with Materials and Atoms 463\, 394 (2020). DOI ht tps://doi.org/10.1016/j.nimb.2019.04.044. URL https://www.sciencedirect.co m/science/article/pii/S0168583X19302289\n[4] E. Picado\, M. Carmona-Gallar do\, J. Cal-González\, L. Fraile\, H. Mach\, J. Udías\, V. Vedia\, Appli ed Radiation and Isotopes 120\, 71 (2017). DOI https://doi.org/10.1016/j.a pradiso.2016.11.017. URL https://www.sciencedirect.com/science/article/pii /S0969804316302275\n[5] L. Fraile\, H. Mach\, V. Vedia\, B. Olaizola\, V. Paziy\, E. Picado\, J. Udías\, Nuclear Instruments and Methods in Physics Research Section A: Accelerators\, Spectrometers\, Detectors and Associat ed Equipment 701\, 235 (2013). DOI https://doi.org/10.1016/j.nima.2012.11. 009. URL https://www.sciencedirect.com/science/article/pii/S01689002120130 10\n[6] Hamamatsu. Hamamatsu Photonic Systems R9779 datasheet. URL https:/ /www.digchip.com/datasheets/parts/datasheet/190/r9779-pdf.php\n\nhttps://i ndico.ific.uv.es/event/7664/contributions/25522/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25522/ END:VEVENT BEGIN:VEVENT SUMMARY:Novel Timing and Synchronization Trends for Particle Detectors: Ex perience with White Rabbit-Based Distributed System Spanning from Accelera tors to Future Detectors DTSTART;VALUE=DATE-TIME:20241119T163000Z DTEND;VALUE=DATE-TIME:20241119T164200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25529@indico.ific.uv.es DESCRIPTION:Speakers: Fco. Javier Galindo Guarch (Instituto Tecnológico d e Aragón)\nThe rapid evolution in high-luminosity colliders necessitates ultra-precise timing detectors capable of picosecond-level accuracy. This presentation explores the development of a distributed timing architecture based on deterministic protocols\, as the High Accuracy Default PTP Profi le of IEEE1588-2019 – a.k.a. White Rabbit (WR)\, to address stringent ti ming demands in next-generation particle detectors. Our primary objective is to implement a scalable timing distribution system that delivers a cloc king signal enabling an absolute time reference among different detectors. The system automatically copes perturbations influencing the distribution network\, as thermal cycles\, to overcome inherent instabilities and limi tations. The stable common notion of time synchronizes measurements betwee n pre-target and post-target detectors\, improving the fidelity of particl e flight time measurements and enabling high-resolution 4D tomography.\nTh e presentation introduces some key aspects and background for 4D timing de tectors and presents preliminary results that include benchmarking commerc ially available (COTS) and custom solutions to assess limitations in jitte r\, phase stability\, and determinism. The proposed system integrates prot otype 4D detectors featuring LGAD sensors and ETROC2 readout chips\, synch ronized through the WR platform. We present our experience and efforts wit h WR technology analysis\, equipment procurement\, prototype development\, functional testing\, and a final review of performance limitations.\n\nht tps://indico.ific.uv.es/event/7664/contributions/25529/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25529/ END:VEVENT BEGIN:VEVENT SUMMARY:Instrumentation developments for particle detectors\, astrophysics and medical imaging at ICCUB DTSTART;VALUE=DATE-TIME:20241119T170000Z DTEND;VALUE=DATE-TIME:20241119T171200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25530@indico.ific.uv.es DESCRIPTION:Speakers: Eduardo Picatoste Olloqui (University of Barcelona ( ES))\nThe Technological Unit of ICCUB is currently providing several resea rch groups at the institute with services such as instrumentation and soft ware development to support their contributions to international collabora tions. Many developments in instrumentation are related to photosensors\, microelectronics\, and space technology\, with key contributions to intern ational projects such as LHCb\, CTA\, HERD\, LISA\, ARIEL\, and axion dete ctors. Furthermore\, this technology is also being applied in medical imag ing and other fields in cooperation with academic and industrial partners. \nIn the particle detector field\, the Technological Unit has long partici pated in the LHCb project\, specifically in the Calorimeter sub-detector w ith PMT electronics readout. In recent years\, phase I of the upgrade was completed\, and the new low-noise analog ASIC has been producing data sinc e 2022. Additionally\, a new ASIC is being designed for phase II of the up grade for the High Luminosity LHC to meet the new stringent conditions of the detector.\nRegarding high-energy astrophysics\, ICCUB has developed th ree different chips with significant contributions to the CTA cameras. Mor e than 100\,000 chips have been produced to equip 15 cameras\, and there a re plans to consolidate this contribution with additional chip production and participation in the commissioning at the North site in La Palma. An u pgrade featuring new versions of chips with enhanced performance based on SiPM sensors is planned.\nThe unit is also involved in space missions\, su ch as the High Energy cosmic-Radiation Detection (HERD) experiment\, propo sed to search for signatures of the annihilation/decay products of dark ma tter\, among other key measurements. The Beta ASIC designed for the Fiber Tracker and PSD subdetectors is crucial to this effort. Additionally\, the Technological Unit is developing a radiation monitor for the LISA mission \, a constellation of three satellites in heliocentric orbit dedicated to gravitational wave observations by ESA.\nOther instrumentation contributio ns include radiopure electronics for the International Axion Observatory ( IAXO)\, a next-generation axion helioscope aimed at the search for solar a xions and axion-like particles (ALPs).\nLastly\, the medical imaging secti on of ICCUB makes use of the ASICS developed. For instance\, the PETVision project aims to leverage vertical integration techniques to build a modul ar ToF-PET scanner with next-generation performance at an affordable cost. \n\nhttps://indico.ific.uv.es/event/7664/contributions/25530/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25530/ END:VEVENT BEGIN:VEVENT SUMMARY:CIEMAT's detector developments for CMS HL-LHC Upgrade DTSTART;VALUE=DATE-TIME:20241119T164500Z DTEND;VALUE=DATE-TIME:20241119T165700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25528@indico.ific.uv.es DESCRIPTION:Speakers: Ignacio Redondo Fernandez (CIEMAT)\nThe CMS experime nt at the Large Hadron Collider (LHC ) faces its High Luminosity fase ( HL-LHC) with an ambitious detector upgrade program. CIEMAT's group activi ties focus on the Barrel Muon Drift Tubes (DT) subdetector electronics\, which will be completely replaced to operate during HL-LHC. The upgraded architecture ships via optical links (lpGBT\, VTRX+) all signals to the b ackend\, where complex logic will run in FPGAs providing a precision match ing the maximum chamber resolution. In this project CIEMAT makes hardwar e contributions in the full chain both at the frontend and backed. \n\nTh is contribution will focus on the frontend part\, where CIEMAT has designe d the OBDtheta board\, a 228 channels TDC readout mounting radiation toler ant flashbases PolaFire Microsemi FPGA and CERN's VTRX+ optics on a 14 la yers halogen-free material PCB. The production of 180 boards (plus spare s) is ongoing and will pass quality control at CIEMAT in the coming month s. CIEMAT is also producing mechanics to cool\, protect and support these electronics\, as well as electronics and mechanics components for the CMS High Granualarity Calorimeter that will replace current endcap calorim eters. The status of these activities will be also reported.\n\nhttps://i ndico.ific.uv.es/event/7664/contributions/25528/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25528/ END:VEVENT BEGIN:VEVENT SUMMARY:The CTA Observatory: Status and Spanish contributions DTSTART;VALUE=DATE-TIME:20241119T160000Z DTEND;VALUE=DATE-TIME:20241119T161200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25526@indico.ific.uv.es DESCRIPTION:Speakers: Luis Ángel Tejedor Álvarez (Universidad Complutens e de Madrid)\nThe CTA Observatory aims to contribute to the development of gamma-ray astronomy by improving the sensitivity of current Cherenkov tel escopes by an order of magnitude. To achieve this\, two arrays of telescop es will be constructed: one at Roque de los Muchachos in La Palma\, and th e other at Cerro Paranal in Chile. Each array will include three types of telescopes: small ones for gamma-ray showers above 10 TeV\, medium for sho wers between 100 GeV and 10 TeV\, and large ones for showers between 10 an d 100 GeV. In 2018\, the first large CTA telescope (LST-1) was inaugurated in La Palma\, and the LST-2\, 3\, and 4 telescopes are currently in an ad vanced stage of construction. This presentation will review the current st atus of the project\, examining in detail the Spanish contributions to the different subsystems. These contributions are focused on the cameras of L STs and NectarCAM-type MSTs\, the analysis pipeline\, and some specific co ntributions to mechanics and ancillary subsystems.\n\nhttps://indico.ific. uv.es/event/7664/contributions/25526/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25526/ END:VEVENT BEGIN:VEVENT SUMMARY:The CADEx experiment. Progress on the technology demonstration of the cavity haloscope operating in W-band. DTSTART;VALUE=DATE-TIME:20241119T154500Z DTEND;VALUE=DATE-TIME:20241119T155700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25534@indico.ific.uv.es DESCRIPTION:Speakers: Jesus Martin-Pintado (Centro de Astrobiologia (CSIC\ , INTA))\nThe Canfranc Axion Detection Experiment (CADEx) will search for the axion in the yet unexplored mass range 330-460 micro-eV. Operating in the W-band (75-100 GHz) will combine\, for the first time\, a cavity halos cope in a strong magnetic field with broadband KIDs arrays to detect the p olarization signature of the axion. CADEx will be installed at the mK cryo stat of the Canfranc Underground Laboratory (LSC). To achieve the projecte d sensitivity of CADEx\, the key elements of the experiment need to be dev eloped by pushing the performances of the cavities at very short wavelengt hs (3 mm) and the bandwidth and sensitivities KIDs in the W-band.\nThis ta lk introduces the multiple-cavities concept in CADEx and focuses on the de velopment of a single cavity\, its link with the horn antenna which connec ts the cavity with the quasi-optic stage\, and its coupling and tuning sub systems\, obtaining a frequency range from 90 to 102 GHz with a single cav ity. First resonance measurements with a prototype cavity and proof of con cept of the tuning system for lower frequencies (X band) will be shown.\n\ nhttps://indico.ific.uv.es/event/7664/contributions/25534/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25534/ END:VEVENT BEGIN:VEVENT SUMMARY:Characterization and Modeling of SiPMs at GAE-UCM DTSTART;VALUE=DATE-TIME:20241119T161500Z DTEND;VALUE=DATE-TIME:20241119T162700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25533@indico.ific.uv.es DESCRIPTION:Speakers: Víctor Moya Zamanillo (Universidad Complutense de M adrid)\nSilicon photomultipliers (SiPMs) have become an excellent option f or photon detection\, emerging as a strong alternative to traditional phot omultiplier tubes in various fields of high-energy physics. Although they offer numerous advantages\, such as high gain\, excellent temporal resolut ion\, and insensitivity to magnetic fields\, SiPMs also have some drawback s\, the most notable being correlated noise and device non-linearity. The study of these issues has been one of the research lines pursued by the Hi gh Energy Group (GAE) at UCM in recent years [1\,2\,3\,4]. This presentati on will discuss the results of GAE's work in understanding and addressing these problems.\nTo model non-linearity\, a mathematical expression is pro posed that relates the number of incident photons to the charge released b y SiPMs for light pulses of arbitrary shape and intensity. This expression introduces a simple model for the charge recovery of SiPM microcells afte r an initial avalanche\, which remains valid even after hundreds of avalan ches in the same microcell. This expression also takes into account variou s factors that affect the response of SiPMs\, such as the finite number of cells\, correlated noise\, and the shape of the incident light pulse. To study such a high level of saturation a detailed Monte Carlo simulation co de was developed. Both the code and the expression have been validated by comparison with experimental data. \nTo characterize correlated noise\, de tailed software tools are being developed for waveform analysis\, they are also useful for other typical measurements associated with SiPMs such as dark current rate and PDE. These tools can produce very clear finger plots as well as identify different kinds of correlated noise\nFinally\, the co llaborations that GAE has had with other research groups will also be disc ussed\, where these tools have begun to be used\, as well as future work i n this line of research.\n\n[1] L. Gallego\, J. Rosado\, F. Blanco and F. Arqueros\, Modelling crosstalk in silicon photomultipliers\, 2013 JINST 8 P05010.\n[2] J. Rosado and S. Hidalgo\, “Characterization and modeling o f crosstalk and afterpulsing in Hamamatsu silicon photomultipliers\,” J. Instrum.\, vol. 10\, Oct. 2015\, Art. no. P10031. doi: 10.1088/1748-0221/ 10/10/P10031.\n[3] Rosado\, Jaime. (2019). Modeling the Nonlinear Response of Silicon Photomultipliers. IEEE Sensors Journal. PP. 1-1. 10.1109/JSEN. 2019.2938018.\n[4] Moya-Zamanillo\, V.\; Rosado\, J. Understanding the Non linear Response of SiPMs. Sensors 2024\, 24\, 2648. https://doi.org/10.339 0/s24082648\n\nhttps://indico.ific.uv.es/event/7664/contributions/25533/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25533/ END:VEVENT BEGIN:VEVENT SUMMARY:Neutron background monitoring for the IAXO-D0 detector prototype DTSTART;VALUE=DATE-TIME:20241119T140000Z DTEND;VALUE=DATE-TIME:20241119T141200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25532@indico.ific.uv.es DESCRIPTION:Speakers: Víctor Martínez Nouvilas (Universidad Complutense de Madrid)\nThe International Axion Observatory (IAXO) is a planned gaseou s detector helioscope designed to detect axions\, hypothetical particles p roposed as a solution for the strong CP problem\, which have also been the orised to be dark matter candidates. A smaller prototype\, BabyIAXO\, is c urrently in manufacturing and is expected to be installed at DESY (Hamburg \, Germany). A baseline detector prototype\, IAXO-D0\, is at present under going tests at the premises of the Universidad de Zaragoza. The prototype is sensitive to background that could induce false positive axion detectio ns\, and in particular to ambient neutrons of high energy. \nA neutron mon itor has been proposed as a way to provide a continuous measurement of amb ient neutrons and its variability. Neutron Monitors are typically used as cosmic ray detectors\, and consist of several neutron counter detectors su rrounded by a series of layers that act as reflector\, multiplier and mode rator for the neutrons. \nIn this work a prototype neutron monitor was des igned and assembled. It consists of three identical LND He-3 proportional counter tubes surrounded by a high density polyethylene (HDPE) moderator\, a layer of lead that acts as multiplier\, and an outer layer of HDPE as r eflector. The neutron monitor has been in operation since March 2024\, pro ducing an almost continuous measurement of the count rate of neutrons dete cted inside the laboratory where IAXO-D0 is being commissioned. \nWe will present the Monte Carlo simulations performed to characterise the monitor and the first results of the monitoring of the neutron count rate\, once n oise and pile-up have been taken care of\, and atmospheric pressure effect s have been corrected. \nThe information learned from this prototype neutr on monitor will guide the design of a neutron monitor optimised for neutro ns of around >100 MeV tailored to the IAXO-D0 needs. The design of the new device will be briefly presented.\n\nhttps://indico.ific.uv.es/event/7664 /contributions/25532/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25532/ END:VEVENT BEGIN:VEVENT SUMMARY:Status of the LINrem project: validation in reference fields DTSTART;VALUE=DATE-TIME:20241119T134500Z DTEND;VALUE=DATE-TIME:20241119T135700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25509@indico.ific.uv.es DESCRIPTION:Speakers: Benedetta Brusasco (UPC - Universitat Politècnica d e Catalunya)\nNeutrons are a highly penetrating type of radiation that can significantly contribute to the total absorbed dose in the human body. Mo nitoring neutron dose rates is essential for assessing the risk to workers \, patients\, and the public\, particularly in particle therapy centers. S uch treatments\, often recommended for young and pediatric patients\, offe r the benefits of a reduced overall dose and high radiobiological effectiv eness. Proton beams are typically used\, though recent advancements are fo cusing on light ions such as carbon\, helium\, and oxygen. Since the prima ry beam energy ranges in the hundreds of MeV\, nuclear interactions betwee n high-energy particles and beam-shaping elements—or even the patient— result in the production of secondary neutrons. Additional factors influen cing neutron production include the accelerator technology\, room design a nd treatment plan.\n\nFor instance\, modern compact proton therapy units\, such as those based on superconducting synchrocyclotron technology\, prod uce pulsed neutron fields characterized by intense bursts of neutrons with in a short time frame. In this scenario\, many commercial dosimeters under estimate neutron ambient doses by up to a factor 10 [1]. A similar situati on is expected occur in innovative treatment approaches such as the Ultra- High Dose Rate Radiation (FLASH therapy) [2]. As accelerator technology ad vances\, so must the instrumentation used to measure radiation [3]. To add ress this gap\, we propose the LINrem project as a potential solution. LIN rem dosimeters are specifically designed to provide accurate neutron dose measurements under challenging conditions\, such as those found in particl e therapy facilities.\n\nThis contribution discusses the status and future directions of the LINrem project. We outline the design of a new passive LINrem dosimeter\, developed by replacing the active sensor in the LINrem moderator with thermoluminescent dosimeters (TLDs). We also present the va lidation of LINrem dosimeters in a high-energy reference neutron field\, w ith measurements conducted at CERN's CERF facility [4\,5]. This facility s imulates both\, cosmic-ray neutron spectra at altitudes of 10–20 km and the secondary spectra found in particle therapy environments. Furthermore\ , regarding clinical applications\, we provide preliminary results from an ongoing intercomparison campaign at the West German Proton Therapy Center (WPE) in Essen. This study\, conducted in close-to-clinical conditions\, includes measurements using Pencil Beam Scanning with setups for both\, pr istine Bragg peaks [6] and range-modulated beams [7].\n\n\n\n\n[1] ZORLONI \, Gabriele\, et al. Intercomparison of personal and ambient dosimeters in extremely high-dose-rate pulsed photon fields. Radiation Physics and Chem istry\, 2020\, vol. 172\, p. 108764. \n[2] CARE SANA\, Marco\; CIRILLO\, Andrea\; BOLZONELLA\, Matteo. Measurements in pul sed neutron fields. Radiation Protection Dosimetry\, 2023\, vol. 199\, no 15-16\, p. 1853-1861.\n[3] TARIFENO-SALDIVIA\, Ariel\, et al. Ambient dosi metry in pulsed neutron fields with LINrem detectors. Radiation Physics an d Chemistry\, 2024\, 224: 112101.\n[4] SILARI\, Marco\; POZZI\, Fabio. The CERN-EU high-energy Reference Field (CERF) facility: applications and lat est developments. In: EPJ Web of Conferences. EDP Sciences\, 2017. p. 0300 1.\n[5] DINAR\, N.\, et al. Instrument intercomparison in the high-energy field at the CERN-EU reference field (CERF) facility and comparison with t he 2017 FLUKA simulations. Radiation Measurements\, 2018\, 117: 24-34.\n[6 ] TRINKL\, Sebastian\, et al. Systematic outoffield secondary neutron spec trometry and dosimetry in pencil beam ‐‐scanning proton therapy. Medic al physics\, 2017\, 44.5: 1912-1920.\n[7] FARAH\, Jad\, et al. Measurement of stray radiation within a scanning proton therapy facility:EURADOS WG9 intercomparison exercise of active dosimetry systems. Medical physics\, 20 15\, 42.5: 2572-2584.\n\nhttps://indico.ific.uv.es/event/7664/contribution s/25509/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25509/ END:VEVENT BEGIN:VEVENT SUMMARY:MLTiming: A machine learning framework for gamma-ray time pick-up DTSTART;VALUE=DATE-TIME:20241119T133000Z DTEND;VALUE=DATE-TIME:20241119T134200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25507@indico.ific.uv.es DESCRIPTION:Speakers: Jose Avellaneda (Universidad Complutense de Madrid) \nAccurate timing characterization of radiation events is crucial in nucle ar medicine\, particularly for Positron Emission Tomography (PET). In PET\ , achieving a good coincidence resolving time (CRT) between detector pairs enhances the Time-of-Flight (TOF) information for each detected coinciden ce\, which significantly improves the signal-to-noise ratio of the images. This study introduces a method to train models\, based on the newly-devel oped Kolmogorov-Arnold networks (KANs)\, for assigning precise timestamps to incoming radiation signals in each detector. We trained the models with event pairs consisting of a measured event and its copy delayed a know am ount of time where the delay acted as a label during training. Trained mod els were evaluated using data from a 60Co point source and a pair of conic 2” LaBr3(Ce) detectors in coincidence mode\, connected to Hamamatsu R97 79 PMTs sampled at 5 Gs/s. We report that our method has achieved a 6% inc rease in CTR and around 40% increased accuracy in source location compared to the widely used constant fraction discrimintation (CFD) method for the evaluation set.\n\nhttps://indico.ific.uv.es/event/7664/contributions/255 07/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25507/ END:VEVENT BEGIN:VEVENT SUMMARY:New detectors for breast cancer Imaging DTSTART;VALUE=DATE-TIME:20241119T131500Z DTEND;VALUE=DATE-TIME:20241119T132700Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25508@indico.ific.uv.es DESCRIPTION:Speakers: Sara Gaitán Domínguez ()\nDevelopment of a new low -cost Molecular Imaging detector for breast cancer screening\, using silic on photomultipliers (SiPMs) and tiled Cesium Iodide (CsI) scintillators. T he detector leverages SiPMs for their high sensitivity and compact size\, while CsI scintillators are used to efficiently convert X-rays into visibl e light. The tiling of the scintillators enables flexible detector configu rations and high spatial resolution\n\nhttps://indico.ific.uv.es/event/766 4/contributions/25508/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25508/ END:VEVENT BEGIN:VEVENT SUMMARY:Simultaneous Gamma-Neutron Vision (GN-Vision): Proof-of-concept o f the neutron imaging capability and prospects of the final device DTSTART;VALUE=DATE-TIME:20241119T130000Z DTEND;VALUE=DATE-TIME:20241119T131200Z DTSTAMP;VALUE=DATE-TIME:20260916T104400Z UID:indico-contribution-4189-25506@indico.ific.uv.es DESCRIPTION:Speakers: Jorge Lerendegui Marco (Instituto de Física Corpusc ular)\nCompton imaging represents a promising technique for Prompt Gamma ( PG) imaging for range verification in hadron therapy (HT) treatments. As f or neutron monitoring\, a drawback of most of the available systems is tha t only integral off-field neutron-fluence values are registered but no inf ormation is obtained from its spatial origin. Dual neutron and gamma imagi ng is also of prime interest for nuclear safety and security applications. In this context\, we have designed and patented a innovative dual neutro n and γ-ray imaging tool\, so-called GN-Vision\, that aims at addressing the most relevant challenges for the aforementioned applications. The syst em consists of a compact and handheld-portable device capable of measuring and simultaneously imaging γ-rays and slow – thermal to 100 eV – neu trons.\n\nThe GN-Vision device follows the design of the previous i-TED de tector [1]\, an array of Compton cameras based on large monolithic positio n sensitive LaCl3(Ce) crystals that were initially designed for neutron-ca pture experiments at CERN [2]. Moreover\, the applicability of i-TED to ra nge verification in ion beam therapy [3\, 4] and imaging-based dosimetry i n BNCT [5\, 6] has been explored with promising results. In addition to i- TED\, GN-Vision exploits a neutron-gamma discriminating detector together with a passive collimator to achieve neutron imaging\, while keeping the C ompton imaging of γ-rays [7].\n\nFollowing the conceptual demonstration o f the simultaneous neutron and gamma-ray imaging in a first Monte Carlo st udy [7]\, we have been working at IFIC in the technical implementation of the first prototype. In this contribution we will present the development and characterization of a position-sensitive CLYC detector that acts as th e neutron imaging layer and γ-ray Compton scatterer of the dual γ-ray an d neutron imaging system GN-Vision. The succesful implementation of the po sition-senstivite neutron-gamma discrimination capability has layed the fo undations for the first proof-of-concept experiment of the neutron imaging capability [8]\, that will be presented in this talk. Last\, the contribu tion will cover the future prospects\, including the studies on the optimi zation of the collimation system\, the advances towards the neutron and ga mma imaging integration\, the expected performance of the complete GN-Visi on device and the plans for upcoming field test-measurements.\nReferences \n[1] C. Domingo-Pardo et al.\, Nucl. Phys. A 851\, 78-86 (2016)\, doi: 10 .1016/j.nima.2016.04.002\n[2] V. Babiano et al.\, Eur. Phys. J. A 57\, 197 (2021)\, doi:10.1140/epja/s10050-021-00507-7\, \n[3] J. Lerendegui-Marco et al.\, Sci Rep 12\, 2735 (2022)\, doi: 10.1038/s41598-022-06126-6\n[4] J . Balibrea-Correa et al.\, Eur. Phys. J. Plus 137\, 1258 (2022)\, doi: 10. 1140/epjp/s13360-022-03414-y\n[5] J. Lerendegui-Marco et al.\, App. Rad. I sot. (submitted) (2024)\, arXiv:2409.05687v1\n[6] P. Torres-Sánchez et al .\, App. Rad. Isot. (submitted) (2024)\, arXiv:2409.10107v1\n[7] J. Leren degui-Marco et al.\, EPJ Techn Instrum 11\, 2 (2024)\, doi: 10.1140/epjti/ s40485-024-00108-w\n[8] J. Lerendegui-Marco et al.\, Nucl. Inst. Methods ( submitted) (2024) \, arXiv:2410.12533\n\nhttps://indico.ific.uv.es/event/7 664/contributions/25506/ LOCATION: URL:https://indico.ific.uv.es/event/7664/contributions/25506/ END:VEVENT END:VCALENDAR