Neutron detection efficiency for NE213 and BC501 scintillators at energies between 25 and 200 MeV

doi:10.1016/0168-9002(89)90180-0

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

Volume 274, Issue 3, 15 January 1989, Pages 494-500

https://doi.org/10.1016/0168-9002(89)90180-0 Get rights and content

Abstract

The ⁷Li(p, n) reaction at 0° has been used to measure the response of single-element organic scintillators to monoenergetic neutron beams at five energies between 25 and 200 MeV. Zero-degree cross section data were also obtained for the ⁷Li(p, n) reaction for neutron energies down to 20 MeV. The scintillator response data agree within ±20% with differential and integral efficiencies calculated using a standard detector simulation program.

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A quasi-monoenergetic neutron field was developed using a thin ⁷Li target bombarded by protons in the energy range from 70 to 210 MeV at the RIKEN ring cyclotron facility. The neutron energy spectra were measured with an NE213 organic liquid scintillator using the TOF method. The absolute peak neutron yields were obtained by measurements of 478 keV γ-rays from ⁷Be nuclei produced in a ⁷Li target through the $^{7} Li(p,n)^{7} Be$ (g.s.+0.429 MeV) reaction.
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Neutron detection efficiency for NE213 and BC501 scintillators at energies between 25 and 200 MeV

Abstract

Nucl. Instr. and Meth.

Nucl. Instr. and Meth.

LANL report LA-11348-MS

Nucl. Instr. and Meth.