A multiple parallel-plate avalanche counter for fission-fragment detection

作者：Wu C Y^*; Henderson R A; Haight R C; Lee H Y; Taddeucci T N; Bucher B; Chyzh A; Devlin M; Fotiades N; Kwan E; O'Donnell J M; Perdue B A; Ullmann J L

来源：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment , 2015, 794: 76-79.

DOI：10.1016/j.nima.2015.05.010

• Fission
• Uranium
• Plutonium
• Californium-252
• Parallel-plate avalanche counter

A new low-mass multiple gas-filled parallel-plate avalanche counter for the fission-fragment detection has been developed to mark the fission occurrence in measurements of the prompt fission neutron energy spectrum as a function of incident neutron energy. It was used successfully for the neutron-induced fission of U-235 and (PU)-P-239 with a total mass near 100 mg each and the spontaneous fission of Cf-252. Both the incident neutron energy and the prompt fission neutron energy are measured by using the time-of-tlight method. The design and performance of this avalanche counter are described.

• 出版日期2015-9-11
• 单位Los Alamos