Nuclear Data Sheets最新文献_第2页

Nuclear Data Sheets Symbols and Abbreviations 核数据表符号和缩略语

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-05-16 DOI: 10.1016/S0090-3752(24)00034-6

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Nuclear Data Sheets for A=191 A=191 的核数据表

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-05-16 DOI: 10.1016/j.nds.2024.04.002

M.S. Basunia

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In memory of Dr. Balraj Singh 悼念巴尔拉吉-辛格博士

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-03-06 DOI: 10.1016/j.nds.2024.02.001

Vivian Dimitriou

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Nuclear Structure and Decay Data for A=76 Isobars A=76 等离子体的核结构和衰变数据

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-03-06 DOI: 10.1016/j.nds.2024.02.002

Balraj Singh , Jun Chen , Ameenah R. Farhan

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General Policies - Presentation of Data 一般政策 - 数据的列报

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-03-06 DOI: 10.1016/S0090-3752(24)00023-1

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Nuclear Structure and Decay Data for A=165 Isobars A=165 等离子体的核结构和衰变数据

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-03-06 DOI: 10.1016/j.nds.2024.02.003

Balraj Singh , Jun Chen

{"title":"Nuclear Structure and Decay Data for A=165 Isobars","authors":"Balraj Singh , Jun Chen","doi":"10.1016/j.nds.2024.02.003","DOIUrl":"https://doi.org/10.1016/j.nds.2024.02.003","url":null,"abstract":"<div>Experimental nuclear spectroscopic data are compiled and evaluated for 18 known nuclides of mass 165 (Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Os, Ir, Pt). Detailed information is presented for each reaction and decay experiment. Combining all the available data, recommended values are provided for energies, spins and parities, and half-lives of levels, with energies, branching ratios and multipolarities of γ radiations, and characteristics of β and α radiations in radioactive decays. 165Dy, 165Ho, 165Er, 165Tm, 165Yb, 165Lu and 165Hf are among the most extensively studied nuclides via decay and high-spin gamma-ray spectroscopy measurements, followed by limited data for 165Tb, 165Ta, 165W, 165Re, and 165Os. No excited states have yet been identified in 165Sm, 165Gd, and 165Pt, while for 165Eu and 165Ir, information is available for only the g.s. and an isomer, but with no γ rays. This work supersedes earlier evaluation of A=165 nuclides by 2006Ja09.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140041859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Nuclear Data Sheets Symbols and Abbreviations 核数据表符号和缩略语

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-03-06 DOI: 10.1016/S0090-3752(24)00025-5

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237Np Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly 利用戈迪瓦 IV 临界组件测量 237Np 裂变谱累积裂变产物当量

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-02-01 DOI: 10.1016/j.nds.2024.01.006

A.S. Tamashiro , J.T. Harke , J.G. Duarte , Y. Mishnayot , S. Burcher , S.W. Padgett , P. Zhao , B.D. Pierson , N. Gharibyan , J.M. Goda , L.R. Greenwood , D.K. Hayes , J. Hutchinson , N. Harward , K. Roberts , G. Slavik , P. Yap-Chiongco , J. Walker , C.J. Palmer

{"title":"237Np Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly","authors":"A.S. Tamashiro , J.T. Harke , J.G. Duarte , Y. Mishnayot , S. Burcher , S.W. Padgett , P. Zhao , B.D. Pierson , N. Gharibyan , J.M. Goda , L.R. Greenwood , D.K. Hayes , J. Hutchinson , N. Harward , K. Roberts , G. Slavik , P. Yap-Chiongco , J. Walker , C.J. Palmer","doi":"10.1016/j.nds.2024.01.006","DOIUrl":"https://doi.org/10.1016/j.nds.2024.01.006","url":null,"abstract":"<div>Precise integral measurement of fast neutron-induced fission product yields for various actinides is of high interest for applied nuclear science. The goal of this effort is to improve uncertainties in fission product yield values of 237Np. Fission was induced in a NpO2(NO3) target using the Godiva IV critical assembly in burst mode. The irradiated sample was transferred to a high-resolution γ-ray detection setup within 50 minutes. γ-ray list mode data was collected from 50 minutes to 1 week after the irradiation. γ-ray spectroscopy was performed to analyze the time dependent γ-ray yields using an automated peak search algorithm to identify isotopes by their decay γ-ray energy and half-life. The initial activity for each isotope identified was used to calculate their fission product yield.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0090375224000073/pdf?md5=ed12f84a6f8a7bd329cdfde1f5e9279c&pid=1-s2.0-S0090375224000073-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139693887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement of the 22Na half-life and evidence supporting the exponential-decay law 22Na 半衰期的测量和支持指数衰减规律的证据

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-02-01 DOI: 10.1016/j.nds.2024.01.002

S. Pommé , H. Stroh , J. Paepen

{"title":"Measurement of the 22Na half-life and evidence supporting the exponential-decay law","authors":"S. Pommé , H. Stroh , J. Paepen","doi":"10.1016/j.nds.2024.01.002","DOIUrl":"https://doi.org/10.1016/j.nds.2024.01.002","url":null,"abstract":"<div>The half-life of 22Na has been determined through 523 activity measurements over 14.5 years with a re-entrant ionisation chamber in a temperature-stabilised room. The data were selected and aggregated from in total 127 830 ionisation current measurements with a reproducibility of the order of 0.065% standard deviation. The ionisation current was collected over an air capacitor and measured as a change of voltage over time, which warrants excellent linearity with activity throughout the experiment. The residuals to an exponential decay curve show a distinct annual cycle of 0.0055 (5)% amplitude, which reduces to 0.0012 (5)% after compensation for a correlation with ambient humidity. The data confirm the validity of the exponential-decay law, in absence of cyclic perturbations at daily, monthly, and multi-annual scale at the level of 0.0005% standard deviation. The 22Na half-life value obtained in this study is 950.68 (12) d or 2.60290 (34) a, with a relative standard uncertainty of 0.013%. This value is consistent with the mean value of other measurement results in the literature, although the latter have an issue with incomplete uncertainty budgets. Owing to the high statistical accuracy and conservative uncertainty estimate of systematic errors, the result obtained in this work can be recommended as a reliable reference value.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0090375224000024/pdf?md5=7dc354d98673d4d756cda9b73dfc3296&pid=1-s2.0-S0090375224000024-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139694293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

239Pu Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly 利用戈迪瓦四临界组件测量 239Pu 裂变谱累积裂变产物当量

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-02-01 DOI: 10.1016/j.nds.2024.01.007

A.S. Tamashiro , J.T. Harke , J.G. Duarte , Y. Mishnayot , S.W. Padgett , G. Slavik , S. Burcher , N. Harward , N. Gharibyan , R.A. Henderson , L.R. Greenwood , B.D. Pierson , J.M. Goda , J.A. Bounds , D.K. Hayes , C.J. Palmer

{"title":"239Pu Fission Spectrum Cumulative Fission Product Yield Measurement Using Godiva IV Critical Assembly","authors":"A.S. Tamashiro , J.T. Harke , J.G. Duarte , Y. Mishnayot , S.W. Padgett , G. Slavik , S. Burcher , N. Harward , N. Gharibyan , R.A. Henderson , L.R. Greenwood , B.D. Pierson , J.M. Goda , J.A. Bounds , D.K. Hayes , C.J. Palmer","doi":"10.1016/j.nds.2024.01.007","DOIUrl":"https://doi.org/10.1016/j.nds.2024.01.007","url":null,"abstract":"<div>Precise integral measurement of fast neutron-induced fission product yields for various actinides is of high interest for applied nuclear science. The goal of this effort is to improve uncertainties in fission product yield values of 239Pu. Fission was induced in a pure 239Pu (<math><mo>></mo><mn>99</mn><mspace></mspace><mtext>%</mtext></math>) target using the Godiva IV critical assembly in burst mode. The irradiated sample was transferred to a high-resolution γ-ray detector within 45 minutes. γ-ray list mode data was collected from 45 minutes to 1 week after the irradiation. γ-ray spectroscopy was performed to analyze the time dependent γ-ray yields using an automated peak search algorithm to identify isotopes by their decay γ-ray energy and half-life. The initial activity for each isotope identified was used to calculate their fission product yield.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":null,"pages":null},"PeriodicalIF":3.7,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0090375224000085/pdf?md5=cedfbab82dee9f192ea7bc09fad0812d&pid=1-s2.0-S0090375224000085-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139693888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0