ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
The 235U epithermal neutron fission detector system at TFTR has been calibrated in situ, using three different neutron sources: 252Cf, a D-D, and a D-T neutron generator. These sources produced a continuous spectrum, a line spectrum at ∼2.5 MeV, and a line spectrum at ∼14 MeV, respectively. The toroidally averaged detection efficiencies are 4.61×10−9 (252Cf), 4.80×10−9 (D-D), and 5.42×10−9 (D-T) counts/neutron for a moderated 1.3-g 235U detector placed ∼4 m from the torus centerline. The effects of (n,2n) and (n,n'γ) reactions are discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1138230
Permalink