Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991cuny.reptq....a&link_type=abstract
Final Technical Report, 1 May 1988 - 30 Apr. 1990 Columbia Univ., New York, NY. Astrophysics Lab.
Astronomy and Astrophysics
Astronomy
Astronomical Spectroscopy, Gamma Ray Astronomy, Gamma Rays, Imaging Techniques, Liquefied Gases, Scintillation Counters, Xenon, Electrons, Free Electrons, High Resolution, Ionization, Purity, Scintillation
Scientific paper
The objective was to develop the technology of liquid xenon (LXe) detectors for spectroscopy and imaging of gamma rays from astrophysical sources emitting in the low to medium energy regime. In particular, the technical challenges and the physical processes relevant to the realization of the LXe detector operated as a Time Projection Chamber (TPC) were addressed and studied. Experimental results were obtained on the following topics: (1) long distance drift of free electrons in LXe (purity); (2) scintillation light yield for electrons and alphas in LXe (triggering); and (3) ionization yield for electrons and gamma rays in LXe (energy resolution). The major results from the investigations are summarized.
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