A first comparison of the responses of a He-4-based fast-neutron detector and a NE-213 liquid-scintillator reference detector

Autor: H. Friederich, J. R. M. Annand, Ulisse Gendotti, Björn Nilsson, Kevin Fissum, G. Davatz, D. Murer, Mikael Lundin, Anders Rosborg, Julius Scherzinger, R. Chandra, Richard Hall-Wilton, Håkan Svensson, Kalliopi Kanaki, E. Hakansson, R. Jebali
Jazyk: angličtina
Rok vydání: 2015
Předmět:
ISSN: 0168-9002
Popis: A first comparison has been made between the pulse-shape discrimination characteristics of a novel $^{4}$He-based pressurized scintillation detector and a NE-213 liquid-scintillator reference detector using an Am/Be mixed-field neutron and gamma-ray source and a high-resolution scintillation-pulse digitizer. In particular, the capabilities of the two fast neutron detectors to discriminate between neutrons and gamma-rays were investigated. The NE-213 liquid-scintillator reference cell produced a wide range of scintillation-light yields in response to the gamma-ray field of the source. In stark contrast, due to the size and pressure of the $^{4}$He gas volume, the $^{4}$He-based detector registered a maximum scintillation-light yield of 750~keV$_{ee}$ to the same gamma-ray field. Pulse-shape discrimination for particles with scintillation-light yields of more than 750~keV$_{ee}$ was excellent in the case of the $^{4}$He-based detector. Above 750~keV$_{ee}$ its signal was unambiguously neutron, enabling particle identification based entirely upon the amount of scintillation light produced.
23 pages, 7 figures, Nuclear Instruments and Methods in Physics Research Section A review addressed
Databáze: OpenAIRE