Background Phenomena and Their Elimination in Gas Filled Detectors

Details Background Phenomena and Their Elimination in Gas Filled Detectors Background Phenomena and Their Elimination in Gas Filled Detectors

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apsp.conf..512s&link_type=abstract

ASTROPARTICLE, PARTICLE AND SPACE PHYSICS, DETECTORS AND MEDICAL PHYSICS APPLICATIONS. Proceedings of the 8th Conference. Held 6

Physics

Medical Physics

Scientific paper

In absorption, x-ray photon will transfer its energy to a photoelectron which has energy dependant finite length in gas. If this absorption track is near the detector wall, the electron may lose part of its energy to the wall and only part of the charge will be collected. This will cause low energy tailing under the spectral line. Several methods to eliminate this background are presented. Peak to background ratio improvement by factor of 30 is demonstrated. An example of the application of this type of detector is given.

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