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A High Resolution Liquid Xenon Imaging Telescope for 0.3-10 MeV Gamma Ray Astrophysics: Construction and Initial Balloon FlightsThe results achieved with a 3.5 liter liquid xenon time projection chamber (LXe-TPC) prototype during the first year include: the efficiency of detecting the primary scintillation light for event triggering has been measured to be higher than 85%; the charge response has been measured to be stable to within 0.1% for a period of time of about 30 hours; the electron lifetime has been measured to be in excess of 1.3 ms; the energy resolution has been measured to be consistent with previous results obtained with small volume chambers; X-Y gamma ray imaging has been demonstrated with a nondestructive orthogonal wires readout; Monte Carlo simulation results on detection efficiency, expected background count rate at balloon altitude, background reduction algorithms, telescope response to point-like and diffuse sources, and polarization sensitivity calculations; and work on a 10 liter LXe-TPC prototype and gas purification/recovery system.
Document ID
19940017808
Acquisition Source
Legacy CDMS
Document Type
Other - Collected Works
Authors
Aprile, Elena
(Columbia Univ. New York, NY, United States)
Date Acquired
September 6, 2013
Publication Date
December 31, 1993
Subject Category
Astronomy
Report/Patent Number
NASA-CR-194709
NAS 1.26:194709
CAL-2150
Accession Number
94N22281
Funding Number(s)
CONTRACT_GRANT: NAGW-2013
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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