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Calibration of a surface barrier detector for 14-MeV neutron flux measurements on TFTR

Journal Article · · Rev. Sci. Instrum.; (United States)
DOI:https://doi.org/10.1063/1.1140144· OSTI ID:7123537
Nuclear reactions in silicon semiconductor detectors with an energy threshold above 2.5 MeV can be used to measure dt neutrons in a high background of low-energy dd neutrons. This allows the measurement of 14-MeV neutrons from the d(t, n)..cap alpha.. reaction in deuterium plasmas, where the tritons from the d(d, t)p reaction create 14-MeV neutrons due to burnup. Measurements with a surface barrier detector are presented together with the calibration of such a detector to measure the absolute 14-MeV neutron source strength.
Research Organization:
Princeton University, Plasma Physics Laboratory, Princeton, New Jersey 08543
OSTI ID:
7123537
Journal Information:
Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 59:8; ISSN RSINA
Country of Publication:
United States
Language:
English