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Neutron Spectrum Measurement in <TEX>$n/{\gamma}$</TEX> Mixed Field(1)
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.5, pp.501-508
Lee,
K., &
Kim,
W.
(1993). Neutron Spectrum Measurement in <TEX>$n/{\gamma}$</TEX> Mixed Field(1). Analytical Science and Technology, 6(5), 501-508.
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Abstract
In n/<TEX>${\gamma}$</TEX> mixed field of <TEX>$^{241}Am-Be$</TEX>(<TEX>${\alpha}$</TEX>, n) neutron source, we seperated the neutron component from gamma ray component. At the center of the detector, <TEX>$^6Li$</TEX> was doped on the cerium activated glass plate for <TEX>$^6Li$</TEX>(<TEX>${\alpha}$</TEX>, n)T nuclear reaction. The time differences of the light following excitations by different scintillators, BC501(<TEX>$C_8H_{10}$</TEX>) and cerium, and by the same scintillator for different radiations as neutrons and gamma-rays are used to apply the methods of PSD(Pulse Shape Discriminator) and CFD(Constant Fraction Discriminator). The figure of merit of <TEX>$^6Li$</TEX> fast neutron spectrometer is estimated as 1.36.
- keywords
- n/<TEX>${\gamma}$</TEX> mixed field, <TEX>$^{241}Am-Be$</TEX>(<TEX>${\alpha}$</TEX>, n), <TEX>$^6Li$</TEX>(n, <TEX>${\alpha}$</TEX>)T, decay time, scintillator, BC501(<TEX>$C_8H_{10}$</TEX>), cerium, PSD, CFD, figure of merit
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