A New Transition Radiation Detector to Study the Composition of Cosmic Radiation

Details A New Transition Radiation Detector to Study the Composition of Cosmic Radiation A New Transition Radiation Detector to Study the Composition of Cosmic Radiation

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..apru11011b&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

We report on a new Transition Radiation Detector (TRD) developed to study the composition of cosmic radiation in the energy region near the knee. The TRD consists of an array of thin walled proportional tubes filled with a xenon-methane mixture which can operate in zero pressure. One of the main advantages of this type of TRD is the possibility of an absolute calibration at a test beam of singly-charged particles. In this paper, we will focus on a calibration test conducted at CERN in August 2001 in which we studied the TR response of various radiator materials over a range of Lorentz factors from 150 to 500,000. The detector used in the test will ultimately form part of a larger TRD for the Cosmic Ray Energetics And Mass (CREAM) which will be flown on an Ultralong Duration Ballon flight in 2003/4.

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