ISSN:
1089-7623
Source:
AIP Digital Archive
Topics:
Physics
,
Electrical Engineering, Measurement and Control Technology
Notes:
A very sensitive neutron time-of-flight spectrometer is now in use at Nova. LaNSA consists of 960 channels of a neutron sensitive liquid scintillator (10×10×10 cm) coupled to a photomultiplier tube followed by a discriminator, TDC, and ADC to allow the measurement of neutron arrival time as well as pulse size. LaNSA is capable of measuring yields as low as 2.3×105 DT neutrons (100 detected hits) with resolution of 2.3 ns (170 keV for 14-MeV neutrons with 20-m flight path). Shielding and collimation provide background levels low enough to allow measurement of secondary and tertiary reaction neutrons. Details of design, testing, calibration, and experimental results will be presented.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.1143536
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