Prompt neutron emission in 250No spontaneous fission associated with ground and isomeric state decays

IF 3.6 2区 物理与天体物理 Q1 PHYSICS, NUCLEAR 中国物理C Pub Date : 2024-05-31 DOI:10.1088/1674-1137/ad361a
R.S. Mukhin, A.V. Isaev, A.V. Andreev, M.L. Chelnokov, V.I. Chepigin, H.M. Devaraja, I.N. Izosimov, A.A. Kuznetsova, O.N. Malyshev, A.G. Popeko, Yu.A. Popov, A. Rahmatinejad, B. Sailaubekov, T.M. Shneidman, E.A. Sokol, A.I. Svirikhin, M.S. Tezekbayeva, M.A. Bychkov, A.V. Yeremin, O. Dorvaux, B. Gall, K. Kessaci, K. Hauschild and A. Lopez-Martens
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Abstract

The complete-fusion reaction 204Pb(48Ca,2n)250No was used to study two activities of 250No with distinct half-lives. A total of 1357 events were observed in the SFiNx neutron detection system. The average number of neutrons emitted per spontaneous fission of 250No was determined to be . The unusually symmetrical shape of the prompt neutron multiplicity distribution was restored and presented for the first time. Statistical tests were performed to compare the prompt neutron multiplicity distributions associated with the ground state and K-isomer state decays.
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与基态和同分异构态衰变有关的 250No 自发裂变中的中子快速发射
利用完全聚变反应 204Pb(48Ca,2n)250No 来研究具有不同半衰期的两种 250No 活性。SFiNx 中子探测系统共观测到 1357 个事件。经测定,250No 每次自发裂变发射的中子平均数为 。首次还原并展示了瞬发中子倍率分布的异常对称形状。对与基态和 K-异构态衰变相关的瞬发中子倍率分布进行了统计检验比较。
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来源期刊
中国物理C
中国物理C 物理-物理:核物理
CiteScore
6.50
自引率
8.30%
发文量
8976
审稿时长
1.3 months
期刊介绍: Chinese Physics C covers the latest developments and achievements in the theory, experiment and applications of: Particle physics; Nuclear physics; Particle and nuclear astrophysics; Cosmology; Accelerator physics. The journal publishes original research papers, letters and reviews. The Letters section covers short reports on the latest important scientific results, published as quickly as possible. Such breakthrough research articles are a high priority for publication. The Editorial Board is composed of about fifty distinguished physicists, who are responsible for the review of submitted papers and who ensure the scientific quality of the journal. The journal has been awarded the Chinese Academy of Sciences ‘Excellent Journal’ award multiple times, and is recognized as one of China''s top one hundred key scientific periodicals by the General Administration of News and Publications.
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