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SUMMARY:Mechanical design and integration at R3B-FAIR experiment
DTSTART;VALUE=DATE-TIME:20240509T094500Z
DTEND;VALUE=DATE-TIME:20240509T100000Z
DTSTAMP;VALUE=DATE-TIME:20260429T232429Z
UID:indico-contribution-23598@indico.ific.uv.es
DESCRIPTION:Speakers: Pablo García-Gil (universidade de vigo)\nThe R3B ex
 perimental setup within the FAIR facility in Darmstadt (Germany)\, is desi
 gned to study Reactions with Relativistic Radioactive Beams. The aim of th
 e R3B collaboration is to create a flexible setup that can accurately meas
 ure these reactions\, with a focus on efficiency\, wide coverage\, and pre
 cise results\, to better understand high-energy radioactive beam interacti
 ons. The group DSN in the University of Vigo has been actively involved in
  the mechanical design and integration of different elements of the R3B se
 tup as well the overall R3B integration activities towards FAIR.\n\nThe R3
 B experimental set-up includes several detectors that are used in differen
 t configurations depending on the reaction to be studied.  The main elemen
 ts of R3B are the Neutron Large Area Neutron Detector (NeuLAND)\, the calo
 rimeter for in-flight detection of gamma rays and high-energy charged part
 icles (CALIFA)\, the GSI Large Acceptance Dipole (GLAD) and a set of dedic
 ated tracking and Time-of-Fligh (ToF) detectors primarily consisting of hi
 gh-response scintillating fibers and silicon detectors.\n\nOur group desig
 ned and installed the whole mechanical structure of CALIFA\, holding more 
 than 2 tons of CsI(Ta) crystals. The innermost structure of CALIFA uses th
 in-wall (0.27 mm) carbon fiber envelopes to hold the 2544 individual cryst
 als in place. The 43 different sensor shapes are located in 24 envelope sh
 apes. The project involved the design of the manufacturing process and the
  hand-made production of the 584 envelope parts\, as well the assembly of 
 the setup. A gantry-like structure with mobile platforms allows for splitt
 ing the detector and mounting operations. \n\nInside the reaction chamber\
 , surrounded by CALIFA\, we designed a structure to securely position diff
 erent tracker silicon detectors around the target. This structure ensures 
 accurate alignment of FOOT and ALPIDE detectors around foils or the liquid
 -H2 targets\, also providing movement\, cooling and cable management throu
 gh the flanges. The challenge is the compact design due to the limited vol
 ume and the many different components inside. \n\nOur group collaborates w
 ith the detector-lab team developing new scintillator fiber detectors usin
 g the MPPC array Hamamatsu S13552. On the one hand\, designing the cooling
  system for the electronics boards\, a compact system to cool down the PCB
 s of the read-out electronics in vacuum. On the other hand\, with the desi
 gn of the first fibers-detector based on this technology for tracking clos
 e to the GLAD magnetic field.\n\nAt this moment we are designing tracking 
 detectors for  the proton arm spectrometer (PAS) based 0.5mm scintillating
  fibers coupled to Hamamatsu S13552 MPPCs. PAS will serve as a primary R3B
  detector system just behind the GLAD dipole\, tracking protons and light 
 charged particles. PAS comprises three detection planes covering about 2.5
 m x 1m\, making it the largest Sci-Fi detector in R3B and a challenging me
 chanical design due to the fibers sizes and the modularity desired.\n\nhtt
 ps://indico.ific.uv.es/event/7477/contributions/23598/
LOCATION:Colegio Mayor Rector Peset Salón de Actos 
URL:https://indico.ific.uv.es/event/7477/contributions/23598/
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