Experience of Application of Silicon Matrix as a Charge Detector in the ATIC Experiment

Details Experience of Application of Silicon Matrix as a Charge Detector in the ATIC Experiment Experience of Application of Silicon Matrix as a Charge Detector in the ATIC Experiment

Jul 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003icrc....4.1857z&link_type=abstract

Proceedings of the 28th International Cosmic Ray Conference. July 31-August 7, 2003. Trukuba, Japan. Under the auspices of the I

Physics

Scientific paper

The ATIC (Advanced Thin Ionization Calorimeter) experiment has had two successful balloon flights in Antarctica from 28 Dec 2000 to 13 Jan 2001 (ATIC-1) and from 29 Dec 2002 to 18 Jan 2003 (ATIC-2). The instrument is intended to measure composition for elements from hydrogen to iron and energy spectra from 30 GeV to near 100 TeV. When calorimeter is used for energy measurements, a problem of charge determination arises due to backscatter particles from the calorimeter. In the ATIC experiment, a finely segmented silicon matrix is used as a charge detector to solve this problem. To provide elemental charge resolution, careful calibration of each pixel is required. Different methods of calibration of the silicon matrix of the ATIC-1 experiment are described, and the resulting charge resolution is presented.

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