A Transition Radiation Detector for AMS

Journal Article (Journal Article)

For cosmic particle spectroscopy on the International Space Station the AMS experiment will be equipped with a Transition Radiation Detector to improve proton background supression up to 300 GeV. The TRD has 20 layers of fleece radiator with Xe/CO2 proportional-mode straw-tube chambers. They are supported in a conically shaped octagon structure made of CFC-Al-honeycomb. For low power consumption VA analog multiplexers are used as front-end readout. A 20 layer prototype has achieved proton rejections above 100 at 90% electron efficiency for beam energies up to 250 GeV. The detector is under construction at RWTH Aachen, the gas system will be built at MIT, slow-control and DAQ at TH Karlsruhe.

Full Text

Duke Authors

Cited Authors

  • Siedenburg, T; Chung, CH; Fopp, S; Fernández García, M; Karpinski, W; Kirn, T; Lübelsmeyer, K; Orboeck, J; Schael, S; Schultz von Dratzig, A; Schwering, G; Siedling, R; Wallraff, W; Becker, U; Berges, P; Burger, J; Fischer, P; Henning, R; Kounine, A; Koutsenko, V; Scholberg, K; de Boer, W; Hauler, F; Jungermann, L

Published Date

  • January 1, 2002

Published In

Volume / Issue

  • 113 / 1-3

Start / End Page

  • 154 - 158

International Standard Serial Number (ISSN)

  • 0920-5632

Digital Object Identifier (DOI)

  • 10.1016/S0920-5632(02)01835-2

Citation Source

  • Scopus