Distinguishing fissions of 232 Th, 237 Np and 238 U with beta-delayed gamma rays

A Iyengar,Eric B Norman,C A Howard,Christopher T Angell, A C Kaplan,J J Ressler,P Chodash,E Swanberg,A Czeszumska,B Wang,R Yee,Howard A Shugart

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms（2013）

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摘要

Measurements of beta-delayed gamma-ray spectra following 14-MeV neutron-induced fissions of 232Th, 238U, and 237Np were conducted at Lawrence Berkeley National Laboratory’s 88-Inch Cyclotron. Spectra were collected for times ranging from 1min to 14h after irradiation. Intensity ratios of gamma-ray lines were extracted from the data that allow identification of the fissioning isotope.

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关键词

Fission,Beta-delayed gamma rays,Germanium detectors,Plastic scintillation detectors,Nuclear forensics

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