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Neutron-induced 2.2 MeV background in gamma ray telescopesNeutron-induced gamma ray production is an important source of background in Compton scatter gamma ray telescopes where organic scintillator material is used. Most important is deuteron formation when atmospheric albedo and locally produced neutrons are thermalized and subsequently absorbed in the hydrogenous material. The resulting 2.2 MeV gamma ray line radiation essentially represents a continuous isotropic source within the scintillator itself. Interestingly, using a scintillator material with a high hydrogen-to-carbon ratio to minimize the scintillator material with a high hydrogen-to-carbon ratio to minimize the neutron-induced 4.4 MeV carbon line favors the np reaction. The full problem of neutron-induced background in Compton scatter telescopes has been previously discussed. Results are presented of observations with the University of California balloon-borne Compton scatter telescope where the 2.2 MeV induced line emission is prominently seen.
Document ID
19850026648
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Zanrosso, E. M. (Xerox Corp. Pasadena, Calif., United States)
Long, J. L. (Hughes Aircraft Co. Los Angeles, United States)
Zych, A. D. (California Univ. Riverside, CA, United States)
White, R. S. (California Univ. Riverside, CA, United States)
Date Acquired
August 12, 2013
Publication Date
August 1, 1985
Publication Information
Publication: 19th Intern. Cosmic Ray Conf - Vol. 3
Subject Category
Space Radiation
Report/Patent Number
OG-9.3-6
Accession Number
85N34961
Funding Number(s)
CONTRACT_GRANT: NGR-05-008-022
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle19850026549Collected WorksNineteenth International Cosmic Ray Conference. OG Sessions, Volume 3
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