Observation of β-Delayed Fission from <SUP>230</SUP>Ac

YUAN ShuangGui; YANG WeiFan; XU YanBing; PAN QiangYan; HE JianJun; XIONG Bing; LI YingJun

Chinese Physics C> 2000, Vol. 24> Issue(12) : 1191-1193

Observation of β-Delayed Fission from ²³⁰Ac

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
β-delayed fission for ^230Acwas searched. ²³⁰Ra was produced via multinucleon transfer reaction by 60MeV/u¹⁸O ion irradiation of ²³²Th target. Thin ²³⁰Ra→β-²³⁰Ac sources of 108 atoms were acquired through radiochemical separations. The mica track detectors were used to record the fission events. The β-delayed fission nucleus ²³⁰Ac was identified via the observed two fission events and the measured γ-ray spectra. Its β-delayed fission probability was obtained to be (1.19±0.85)×10^－8.

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YUAN ShuangGui, YANG WeiFan, XU YanBing, PAN QiangYan, HE JianJun, XIONG Bing and LI YingJun. Observation of β-Delayed Fission from ²³⁰Ac[J]. Chinese Physics C, 2000, 24(12): 1191-1193.

YUAN ShuangGui, YANG WeiFan, XU YanBing, PAN QiangYan, HE JianJun, XIONG Bing and LI YingJun. Observation of β-Delayed Fission from ²³⁰Ac[J]. Chinese Physics C, 2000, 24(12): 1191-1193. shu

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Received: 2000-07-07
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Observation of β-Delayed Fission from ²³⁰Ac

Corresponding author: YUAN ShuangGui,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 2000-07-07

Accepted Date: 1900-01-01

Available Online: 2000-12-05

Abstract: β-delayed fission for ^230Acwas searched. ²³⁰Ra was produced via multinucleon transfer reaction by 60MeV/u¹⁸O ion irradiation of ²³²Th target. Thin ²³⁰Ra→β-²³⁰Ac sources of 108 atoms were acquired through radiochemical separations. The mica track detectors were used to record the fission events. The β-delayed fission nucleus ²³⁰Ac was identified via the observed two fission events and the measured γ-ray spectra. Its β-delayed fission probability was obtained to be (1.19±0.85)×10^－8.

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Observation of β-Delayed Fission from ²³⁰Ac

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Observation of β-Delayed Fission from 230Ac

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Observation of β-Delayed Fission from ²³⁰Ac

Observation of β-Delayed Fission from ²³⁰Ac