Aachen T 2003 – scientific programme
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T: Teilchenphysik
T 102: Kosmische Strahlung II
T 102.4: Talk
Monday, March 10, 2003, 17:00–17:15, FO7
Test results of the Front-End Electronics for the TRD of AMS02 — •C.H. Chung1,2, F. Dömmecke1, A. Schultz v. Dratzig1, S. Fopp1, A. Gross1, W. Karpinski1, Th. Kirn1, K. Lübelsmeyer1, J. Orboeck1, S. Schael1, G. Schwering1, Th. Siedenburg1, R. Siedling1, D. Son2, and W. Wallraff1 — 1
I. Physikalisches Institut B, RWTH, D-52056, Aachen, Germany — 2
CHEP, Kyungpook National University, 702-701 Daegu, South Korea
The Transition Radiation Detectors(TRD) is designed for the purpose of lepton identification in the Alpha Magnetic Spectrometer(AMS) space high energy experiment at the International Space Station(ISS). The TRD is designed as a multi-layer straw tube sandwich structure where the straw proportional counters are embedded in a fleece radiator. The number of layers is 20 and consists of 328 modules, each module consisting of 16 adjacent straw tubes, with a total 5248 channels. The Front-End board(UFE) is based on VA Hybrid chip, a 32 channel charge sensitive preamplifier and shaper with integrated sample and hold and multiplexed analog readout circuits. The UFE board performs analog-to-digital conversion of the detector signals and has a logic control unit that provides the basic control signals. In this presentation we will show each component of FE system and the space qualification test results.