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

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-12-01 DOI: 10.1016/S0090-3752(21)00067-3

引用次数: 0

Measurement of the 239Pu(n,f)/235U(n,f) Cross-Section Ratio with the NIFFTE fission Time Projection Chamber 用NIFFTE裂变时间投射室测量239Pu(n,f)/235U(n,f)截面比

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-12-01 DOI: 10.1016/j.nds.2021.11.001

引用次数: 0

Nuclear Data Sheets for A=64 A=64的核数据表

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-12-01 DOI: 10.1016/j.nds.2021.11.002

Balraj Singh , Jun Chen

{"title":"Nuclear Data Sheets for A=64","authors":"Balraj Singh , Jun Chen","doi":"10.1016/j.nds.2021.11.002","DOIUrl":"https://doi.org/10.1016/j.nds.2021.11.002","url":null,"abstract":"<div>The evaluated experimental data are presented and evaluated for 13 known nuclides of mass 64 (Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se). For each nuclide, the best values combining all available data are recommended for spectroscopic properties. No excited states have been identified in 64Ti, 64As, and 64Se. Only one excited state in 64V as an isomer, and three in 64Cr have been identified. Data for excited states in 64Mn, 64Fe, and 64Co remain limited. 64Ni, 64Cu, and 64Zn are the most studied nuclides through various reactions and decays, followed by 64Ga and 64Ge. In the opinion of the evaluators, there are several incomplete or discrepant aspects of the high-spin portion of the level scheme for 64Zn above ≈5 MeV excitation which need to be resolved in further experiments using large γ-detector arrays. The decay schemes of 64Ti β−, 64As ε and 64Se ε are unknown, while very little information is available for 64V β− and 64Cr β−. The decay schemes of 64Mn β−, 64Fe β−, 64Co β− and 64Ge ε are somewhat better known, but still considered incomplete by evaluators. The decay scheme of 64Ga ε decay is known in detail, however there is the possibility of additional levels populated above 4713 keV, as the Q(ε) value is 7171 keV. The β−, β+ and ε decay modes of 64Cu are well known, as this radionuclide is of great importance in applications, for example, as a dosimeter for neutron flux determination in nuclear reactors, and as a radiopharmaceutical for positron emission tomography (PET). This work supersedes earlier full evaluations of A=64 by 2007Si04, 1996Si12, 1991Si03, 1979Ha35 and 1974Au04.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":"178 ","pages":"Pages 41-537"},"PeriodicalIF":3.7,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136505883","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}

引用次数: 0

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

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-11-01 DOI: 10.1016/S0090-3752(21)00058-2

引用次数: 0

Nuclear Data Sheets for A=203 核数据表A=203

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-11-01 DOI: 10.1016/j.nds.2021.09.002

F.G. Kondev

{"title":"Nuclear Data Sheets for A=203","authors":"F.G. Kondev","doi":"10.1016/j.nds.2021.09.002","DOIUrl":"10.1016/j.nds.2021.09.002","url":null,"abstract":"<div>Evaluated nuclear structure and decay data for all nuclei with mass number A=203 (203Os, 203Ir, 203Pt, 203Au, 203Hg, 203Tl, 203Pb, 203Bi, 203Po, 203At, 203Rn, 203Fr, 203Ra) are presented. All available experimental data are compiled and evaluated, and best values for level and γ-ray energies, quantum numbers, lifetimes, γ-ray intensities and transition probabilities, as well as other nuclear properties, are recommended. Inconsistencies and discrepancies that exist in the literature are discussed. A number of computer codes (https://www-nds.iaea.org/public/ensdf_pgm/index.htm<svg><path></path></svg>) developed by members of the NSDD network were used during the evaluation process. For example, the reported absolute γ-ray emission probabilities and their uncertainties were determined using the GABS code. The γ-ray transition probabilities were determined using the RULER code and the corresponding uncertainties were estimated by means of a Monte-Carlo approach. This work supersedes the earlier evaluation by F.G. Kondev (2005Ko20), published in Nuclear Data Sheets 105, 1 (2005).</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":"177 ","pages":"Pages 509-699"},"PeriodicalIF":3.7,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46690225","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}

引用次数: 2

Nuclear Data Sheets for A=194 A=194的核数据表

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-11-01 DOI: 10.1016/j.nds.2021.09.001

Jun Chen , Balraj Singh

{"title":"Nuclear Data Sheets for A=194","authors":"Jun Chen , Balraj Singh","doi":"10.1016/j.nds.2021.09.001","DOIUrl":"https://doi.org/10.1016/j.nds.2021.09.001","url":null,"abstract":"<div>Experimental nuclear structure and decay data are evaluated for all of 14 known nuclides of mass 194 (Ta, W, Re, Os, Ir, Pt, Au, Hg, Tl, Pb, Bi, Po, At, Rn). Detailed evaluated spectroscopic information is presented for each reaction and decay experiment, and by combining all the available data, recommended values are provided for energies, spins and parities and half-lives of levels, together with energies, branching ratios and multipolarities of gamma radiations from the levels, and characteristics of beta and alpha radiations in radioactive decays. No excited states have yet been identified in 194Ta, 194W, and 194Rn. Only limited spectroscopic data are available for 194Re, with a 45−μs isomer identified, but its absolute energy yet to be determined. Only two levels at unknown absolute energies are reported for 194At, both of which are isomeric but neither can be unambiguously identified as the ground state. Data are scarce for 194Os, 194Bi and 194Po, while 194Pt, 194Au, 194Hg, 194Tl and 194Pb are well studied through decays and reactions. For 194Ir, although a major (n, γ), E=thermal study and two particle-transfer studies provide large amounts of spectral data, still several problematic issues are found in the assignment of multipolarities for the secondary gamma transitions in the (n, γ) study by 2008Ba25, 1998Ba85 and 1998Ba42, all from the same group. Some issues have been resolved by the evaluators, but we suggest that further experimental work is needed on 194Ir structure to resolve standing issues, and verify the conclusions made by 2008Ba25. Our attempt to contact the prime authors of the 2008Ba25 paper was not successful. The present work supersedes all the earlier evaluations of A=194 nuclides by 2006Si17, 1996Br26, 1989Si01 and 1972Au11.</div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":"177 ","pages":"Pages 1-508"},"PeriodicalIF":3.7,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"137335807","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}

引用次数: 0

Nuclear Data Sheets for A=160 A=160的核数据表

IF 3.7 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2021-09-01 DOI: 10.1016/j.nds.2021.08.001

N. Nica