Development of Readout System for the CALET Scintillating Fiber Detector

Details Development of Readout System for the CALET Scintillating Fiber Detector Development of Readout System for the CALET Scintillating Fiber Detector

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001icrc....6.2297t&link_type=abstract

Proceedings of the 27th International Cosmic Ray Conference. 07-15 August, 2001. Hamburg, Germany. Under the auspices of the Int

Physics

Scientific paper

We have a plan to make observations of high energy electrons and gamma rays with the Japanese Experiment Module (JEM) on the International Space Station (ISS). We are carrying out a R&D for the detector, CALET (CALorimetric Electron Telescope). It consists of an imaging calorimeter (IC) and a total absorption calorimeter (TASC). We will utilize a few hundred-thousands scintillating fibers (SCIFI) for the IC part to visualize cascade showers. We have two options for readout of such amount of SCIFI. First, we have developed a new image intensifier coupled to CCD camera (II-CCD), which is based on the technology utilized and established in the balloon observations with BETS (Balloonborne Electron Telescope with Scintillating fibers). Although the data acquisition rate will be limited to a few 10 Hz, a lot of SCIFI can be read relatively easily with the readout system of the II-CCD. Second, we are developing a readout system with multi-anode photo multipliers (MA-PMT) and front-end chips (VA32 hdr32; one of the Viking family). The readout system with the MA-PMT will enable us to make data acquisition at high frequency of over one thousand Hz.

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