Electronic considerations for externally segmented germanium detectors

Details Electronic considerations for externally segmented germanium detectors Electronic considerations for externally segmented germanium detectors

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..232..509m&link_type=abstract

IN: Gamma-ray line astrophysics; Proceedings of the International Symposium, Paris, France, Dec. 10-13, 1990 (A92-43619 18-90).

Astronomy and Astrophysics

Astrophysics

2

Background Radiation, Field Effect Transistors, Gamma Ray Spectrometers, Radiation Detectors, Radioactive Decay, Beta Particles, Compton Effect, Germanium, Preamplifiers

Scientific paper

The dominant background source for germanium gamma ray detector spectrometers used for some astrophysics observations is internal beta decay. Externally segmented germanium gamma ray coaxial detectors can identify beta decay by localizing the event. Energetic gamma rays interact in the germanium detector by multiple Compton interactions while beta decay is a local process. In order to recognize the difference between gamma rays and beta decay events, the external electrode (outside of detector) is electrically partitioned. The instrumentation of these external segments and the consequence with respect to the spectrometer energy signal is examined.

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