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Record Details

Record 70 of 2564
Double Compton scatter telescope calibration
Author and Affiliation:
Dayton, B.(California State Univ., Los Angeles, CA, United States)
Simone, J.(California State Univ., Los Angeles, CA, United States)
Green, M.(California State University, Los Angeles, CA, United States)
Long, J.(California State Univ., Los Angeles, CA, United States)
Zanrosso, E.(California State Univ., Los Angeles, CA, United States)
Zych, A. D.(California State Univ., Los Angeles, CA, United States)
White, R. S.(California, University, Riverside, CA, United States)
Abstract: Calibration techniques for a medium energy gamma ray telescope are described. Gain calibration using Compton edge spectra involves comparisons of pulse height spectra with spectra simulated by a Monte Carlo computer code which includes Compton scattering and pair production, plural scattering and variable energy resolution, and cell size. The telescope considered comprises 56 cells of liquid scintillator in four size groups, with a total liquid volume of 325 l; each cell has its own photomultiplier tube. Energy and angular resolutions and the PMT gain calibration procedure are verified with double scatter data for monoenergetic gamma rays at a known location. Detection probabilities for any cell combination in the two telescope arrays are calculated per steradian as a function of the scattering for a number of different energies with a Van de Graaff accelerator.
Publication Date: Jan 01, 1981
Document ID:
19820039302
(Acquired Nov 30, 1995)
Accession Number: 82A22837
Subject Category: ASTRONOMY
Document Type: Conference Proceedings
Publication Information: (SEE A82-22832 09-35)
Publisher Information: France
Meeting Information: International Cosmic Ray Conference; 17th; July 13-25, 1981; Paris; France
Contract/Grant/Task Num: NGR-05-008-022
Financial Sponsor: NASA; United States
Organization Source: California State Univ.; Los Angeles, CA, United States
California Univ.; Riverside, CA, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: CALIBRATING; COMPTON EFFECT; COMPUTERIZED SIMULATION; ENERGY SPECTRA; GAMMA RAY TELESCOPES; PAIR PRODUCTION; BALLOON SOUNDING; MONTE CARLO METHOD; PARTICLE INTERACTIONS; PARTICLE TELESCOPES; VAN DE GRAAFF ACCELERATORS
Imprint And Other Notes: In: International Cosmic Ray Conference, 17th, Paris, France, July 13-25, 1981, Conference Papers. Volume 8. (A82-22832 09-35) Gif-sur-Yvette, Essonne, France, Commissariat a l'Energie Atomique, 1981, p. 20-23.
Availability Source: Other Sources
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