期刊
PHYSICAL REVIEW LETTERS
卷 105, 期 20, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.105.202501
关键词
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资金
- Spanish FPA [2005-03993, FPA2008-06419-C02-01]
- Hungarian OTKA [K72566]
- EC [MERG-CT-2004-506849]
- Finnish Center of Excellence Programme
- EU [506065]
- Hungarian-Spanish collaboration program
- Science and Technology Facilities Council [ST/F012012/1] Funding Source: researchfish
- STFC [ST/F012012/1] Funding Source: UKRI
The beta feeding probability of Tc-102,Tc- 104,Tc- 105,Tc- 106,Tc- 107, Mo-105, and Nb-101 nuclei, which are important contributors to the decay heat in nuclear reactors, has been measured using the total absorption technique. We have coupled for the first time a total absorption spectrometer to a Penning trap in order to obtain sources of very high isobaric purity. Our results solve a significant part of a long-standing discrepancy in the gamma component of the decay heat for Pu-239 in the 4-3000 s range.
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