Multi-layered parallel plate ionization chamber for cross-section measurements of minor actinides

廣瀬 健太郎*; 大槻 勤*; 柴崎 義信*; 岩佐 直仁*; 堀 順一*; 高宮 幸一*; 八島 浩*; 西尾 勝久; 鬼柳 善明*

Nuclear Instruments and Methods in Physics Research A, 621(1-3), p.379 - 382, 2010/09

https://doi.org/10.1016/j.nima.2010.05.001

A multi-layer parallel plate avalanche chamber (PPIC) has been developed for the measurement of neuron-induced fission cross-section using the lead slowing down neutron spectrometer at the Research Reactor Institute, Kyoto University. The PPIC consists of two sets of multi-layer electrodes to detect fission fragments from two samples located back-to-back between them. The performance of the PPIC was tested with a spontaneous fission of Cm. The cross section for the neutron-induced fission of Am was successfully obtained using that of U as a reference.