Development of a PMT Readout System with Viking Chips for the SciFi Detector of CALET
Abstract
The CALET (CALorimetric Electron telescope) experiment on the International Space Station (ISS) is designed to observe cosmic-ray electrons, γ -rays, and heavy nuclei. The CALET detector will comprise an imaging calorimeter (IMC) and a total absorption calorimeter (TASC). The IMC part will be assembled with several ten thousand scintillating fibers (SciFi). In order to read the SciFi's, we have been developing a readout system for multi-ano de PMT (MAPMT). We assembled a test detector using 512 SciFi's and a MA-PMT readout unit composed of "Viking" chips (VA32HDR2). We report the performance of the readout unit as proved by beam tests.
- Publication:
-
International Cosmic Ray Conference
- Pub Date:
- July 2003
- Bibcode:
- 2003ICRC....4.2189T