University of Maryland
Atlantic Building, Room 2400
4:30 PM Monday, February 9, 2009
Coffee, Tea & Snacks 4:15-4:30 PM

Alexander Malinin
University of Maryland
A New Transition Radiation Detector for the CREAM experiment

The Cosmic Ray Energetics And Mass (CREAM) experiment is designed to investigate the source, propagation and acceleration mechanism of high energy cosmic-ray nuclei, by directly measuring their energy and charge. Incorporating a Transition Radiation Detector (TRD) provides an energy measurement complementary to the calorimeter, as well as additional track reconstruction capability. A new TRD design provides a compact, robust, reliable, low density detector to measure incident nucleus energy for 3 < Z < 26 nuclei in the Lorentz gamma factor range of 102-105. Design, construction and tests of the new TRD as well as the low-power front end electronics used to achieve the large dynamic range required will be presented. Beam test results of a prototype TRD in the CERN SPS secondary hadron and electron beam will be reported.

Sponsored by: Department of Physics and the Institute for Physical Science and Technology, University of Maryland. For information call Victoria at (301) 405-4811 or go to the UMD Space Physics group seminar web site.

There is free parking after 4:00 PM in lot B (the big parking garage across the street from the ATL building). There are a limited number of spaces in lot Q next to the new ATL wing with free parking after 4PM even when there is a basketball game on campus.