Nuclear Data: Fission Yields, Decay Heat and Neutron Reaction Cross Sections

核数据：裂变产额、衰变热和中子反应截面

• 批准号: EP/I003258/1
• 负责人: Alastair Smith
• 金额: $ 37.58万
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2010
• 资助国家: 英国
• 起止时间: 2010 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FI003258%2F1
• 关键词: Nuclear; Data; Fission; Yields; Decay

The UK now has little capability in nuclear data measurement and evaluation despite the fact that these data are absolutely critical in underpinning many industrial nuclear applications. The nuclear industry in particular now faces a number of challenges connected with new nuclear build, plutonium disposition, and geological disposal. These areas rely on nuclear data codes which have served the UK well over the years but, due to compensating errors and correcting factors, are likely to depart from observation as the envelope of operation is extended into the new areas of application.This outline proposal will allow the UK to re-engage with international efforts to measure neutron absorption ad fission cross sections, fission yields, and gamma decay heat measurements at a number of European research facilities. This consortium will also help the analysis and evaluation work to ensure the nuclear industry in the UK benefits from the new measurements in a timely manner.The three strands of the proposed research programme are: (i) measurements of neutron capture cross sections on actinide targets through UK membership of the neutron Time-of-Flight collaboration working at CERN; (ii) Gamma decay heat measurements using a Total Absorption Spectrometer, and (iii) measurements of neutron-induced fission cross sections and fission yields using the UK's STEFF spectrometer at the SPIRAL2 pulsed neutron facility at GANIL (France).

英国现在在核数据测量和评估方面几乎没有能力，尽管这些数据对于支撑许多工业核应用绝对至关重要。核工业现在尤其面临着与新核建设、钚处置和地质处置相关的一系列挑战。这些领域依赖于多年来为英国提供良好服务的核数据代码，但由于补偿误差和校正因素，随着操作范围扩展到新的应用领域，这些代码可能会偏离观测。该大纲提案将使英国能够重新参与国际努力，在许多欧洲研究设施测量中子吸收和裂变截面、裂变产额和伽马衰变热测量。该联盟还将帮助分析和评估工作，以确保英国的核工业及时从新的测量中受益。拟议研究计划的三个部分是：（i）通过欧洲核子研究中心中子飞行时间合作的英国成员身份测量锕系元素靶上的中子俘获截面； (ii) 使用总吸收光谱仪进行伽玛衰变热测量，以及 (iii) 在 GANIL（法国）的 SPIRAL2 脉冲中子设施中使用英国的 STEFF 光谱仪测量中子诱发裂变截面和裂变产额。

项目成果

The CERN n_TOF Facility: Neutron Beams Performances for Cross Section Measurements

CERN n_TOF 设施：横截面测量的中子束性能

• DOI: 10.1016/j.nds.2014.08.003
• 发表时间: 2014
• 期刊: Nuclear Data Sheets
• 影响因子: 3.7
• 作者: Chiaveri E

Development of a novel segmented anode Frisch-grid ionisation chamber for fission measurements

• DOI: 10.1016/j.nima.2019.162846
• 发表时间: 2020-01
• 期刊: Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment
• 影响因子: 1.4
• 作者: S. Bennett;P. MacGregor;A. Smith;R. L. Kennedy-Reid;T. Wright

The fission experimental programme at the CERN n_TOF facility: status and perspectives

• DOI: 10.1140/epja/s10050-020-00037-8
• 发表时间: 2020-02
• 期刊: The European Physical Journal A
• 作者: N. Colonna;A. Tsinganis;R. Vlastou;N. Patronis;M. Diakaki;S. Amaducci;M. Barbagallo;S. Bennett;E. Berthoumieux;M. Bacak;G. Cosentino;S. Cristallo;P. Finocchiaro;J. Heyse;D. Lewis;A. Manna;C. Massimi;E. Mendoza;M. Mirea;A. Moens;R. Nolte;E. Pirovano;M. Sabate-Gilarte;G. Sibbens;A. Smith;N. Sosnin;A. Stamatopoulos;D. Tarrío;L. Tassan-got;D. Vanleeuw;A. Ventura;D. Vescovi;T. Wright;P. Žugec;The nTOF Collaboration

Capture Cross Section of 236U: the n_TOF Results

捕获 236U 的横截面：n_TOF 结果

• DOI: 10.1016/j.nds.2014.08.014
• 发表时间: 2014
• 期刊: Nuclear Data Sheets
• 影响因子: 3.7
• 作者: Barbagallo M

High-accuracy determination of the neutron flux at n_TOF

• DOI: 10.1140/epja/i2013-13156-x
• 发表时间: 2013-12
• 期刊: The European Physical Journal A
• 作者: M. Barbagallo;C. Guerrero;A. Tsinganis;D. Tarrío;S. Altstadt;S. Andriamonje;J. Andrzejewski;L. Audouin