Prompt neutron multiplicity from spontaneous fission of \(^{244}\)Fm

IF 2.6 3区物理与天体物理 Q2 PHYSICS, NUCLEAR

The European Physical Journal A Pub Date : 2024-11-13 DOI:10.1140/epja/s10050-024-01441-0

R. S. Mukhin, A. V. Isaev, I. I. Ulanova, A. I. Svirikhin, M. A. Bychkov, M. L. Chelnokov, V. I. Chepigin, H. M. Devaraja, O. Dorvaux, B. Gall, K. Hauschild, I. N. Izosimov, A. A. Kuznetsova, A. Lopez-Martens, O. N. Malyshev, A. G. Popeko, Yu. A. Popov, B. Sailaubekov, E. A. Sokol, M. S. Tezekbayeva, N. I. Zamyatin, A. V. Yeremin

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引用次数: 0

Abstract

This study investigates the prompt fission neutron (PFN) multiplicity distribution in the spontaneous fission (SF) of \(^{244}\)Fm. Experimental data were obtained using the complete fusion reaction \(^{206}\)Pb(\(^{40}\)Ar,2n)\(^{244}\)Fm, obtaining a mean of \(3.6 \pm 0.1\) emitted neutrons per SF event. The symmetry of the PFN multiplicity distribution suggests no significant influence of additional fission modes, aligning with theoretical predictions that indicate the dominance of the standard fission mode. At the same time, comparison with neighboring isotopes points at a possible additional fission mode in \(^{246}\)Fm.

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(^{244}\)Fm自发裂变产生的急中子倍率

本研究考察了 \(^{244}\)Fm 自发裂变（SF）中的速裂变中子（PFN）倍率分布。实验数据是利用完全聚变反应 \(^{206}\)Pb(\(^{40}\)Ar,2n)\(^{244}\)Fm 获得的，得到了每个 SF 事件平均有 \(3.6 \pm 0.1\) 个发射中子。PFN倍率分布的对称性表明没有其他裂变模式的显著影响，与理论预测一致，即标准裂变模式占主导地位。同时，与邻近同位素的比较表明，在 \(^{246}\)Fm 中可能存在额外的裂变模式。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

The European Physical Journal A 物理-物理：核物理

CiteScore

5.00

自引率

18.50%

发文量

216

审稿时长

3-8 weeks

期刊介绍： Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.