Effects of neutron energy spectrum on the efficiency calibration of epithermal neutron detectors

Journal Article · Wed May 01 04:00:00 EDT 1985 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1138230· OSTI ID:5545359

Nieschmidt, E B; England, A C; Hendel, H W; Hillis, D L; Isaacson, J A; Ku, L P; Tsang, F Y

The /sup 235/U epithermal neutron fission detector system at TFTR has been calibrated in situ, using three different neutron sources: /sup 252/Cf, a D-D, and a D-T neutron generator. These sources produced a continuous spectrum, a line spectrum at approx.2.5 MeV, and a line spectrum at approx.14 MeV, respectively. The toroidally averaged detection efficiencies are 4.61 x 10/sup -9/ (/sup 252/Cf), 4.80 x 10/sup -9/ (D-D), and 5.42 x 10/sup -9/ (D-T) counts/neutron for a moderated 1.3-g /sup 235/U detector placed approx.4 m from the torus centerline. The effects of (n,2n) and (n,n'..gamma..) reactions are discussed.

• Research Organization: Princeton University, Plasma Physics Laboratory, Princeton, New Jersey 08544
• OSTI ID: 5545359
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 56:5; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ACTINIDES
BARYONS
CALIBRATION
DATA
DETECTION
EFFICIENCY
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENERGY SPECTRA
EXPERIMENTAL DATA
FERMIONS
FISSION
FISSION FRAGMENT DETECTION
FISSION NEUTRONS
HADRONS
INFORMATION
METALS
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NEUTRON AGE
NEUTRON SOURCES
NEUTRONS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTICLE SOURCES
PLASMA DIAGNOSTICS
RADIATION DETECTION
RADIATION SOURCES
SPECTRA
TFTR REACTORS
URANIUM