Computer Science – Performance
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phdt........12b&link_type=abstract
Thesis (PhD). INDIANA UNIVERSITY, Source DAI-B 61/07, p. 3641, Jan 2001, 106 pages.
Computer Science
Performance
Scientific paper
HEAT-p¯ (High Energy Antimatter Telescope) is a balloon-borne instrument designed to detect and distinguish antiprotons of energy 4-50 GeV. Measuring the flux of antiprotons aids in understanding the propagation and interaction of cosmic rays in the galaxy. By sampling the energy loss due to ionization (dE/dx) it is possible to determine the energy of incident particles. In conjunction, a magnet spectrometer is used to determine the particle's rigidity (momentum/charge). Simultaneous measurements of rigidity and energy allow us to determine the particle's mass and charge. HEAT-p¯ uses 140 multi-wire proportional chambers filled with a Xenon-methane mixture to determine the energy loss. The wire chambers were constructed primarily at Indiana University. A detailed description of the design and construction of the wire chambers will be presented. The HEAT-p¯ instrument was launched from Fort Sumner, New Mexico, on May 30, 1999, and stayed afloat for 18 hours. The performance of the wire chambers, both during testing and during flight, will be compared to its expected performance.
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