Reactor Decay Heat in {sup 239}Pu: Solving the {gamma} Discrepancy in the 4-3000-s Cooling Period

Journal Article · Fri Nov 12 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.105.202501· OSTI ID:21541697

Algora, A ^[1]; Jordan, D; Tain, J L; Rubio, B; Agramunt, J; Perez-Cerdan, A B; Molina, F; Caballero, L; Nacher, E ^[1]; Krasznahorkay, A; Hunyadi, M D; Gulyas, J; Vitez, A; Csatlos, M; Csige, L ^[2]; Aeysto, J; Penttilae, H; Moore, I D; Eronen, T; Jokinen, A ^[3]

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1. IFIC - CSIC-Univ. Valencia, Valencia (Spain)
2. Institute of Nuclear Research, Debrecen (Hungary)
3. University of Jyvaeskylae, Jyvaeskylae (Finland)

The {beta} feeding probability of {sup 102,104,105,106,107}Tc, {sup 105}Mo, and {sup 101}Nb 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 {sup 239}Pu in the 4-3000 s range.

• OSTI ID: 21541697
• Journal Information: Physical Review Letters, Vol. 105, Issue 20; Other Information: DOI: 10.1103/PhysRevLett.105.202501; (c) 2010 American Institute of Physics; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
AFTER-HEAT
MOLYBDENUM 105
NIOBIUM 101
PENNING EFFECT
PLUTONIUM 239
PROBABILITY
REACTORS
SHOWER COUNTERS
TECHNETIUM 102
TECHNETIUM 104
TECHNETIUM 105
TECHNETIUM 106
TECHNETIUM 107
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
EVEN-ODD NUCLEI
HEAVY NUCLEI
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
MOLYBDENUM ISOTOPES
NIOBIUM ISOTOPES
NUCLEI
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
PLUTONIUM ISOTOPES
RADIATION DETECTORS
RADIOISOTOPES
SECONDS LIVING RADIOISOTOPES
SORPTION
SPONTANEOUS FISSION RADIOISOTOPES
TECHNETIUM ISOTOPES
YEARS LIVING RADIOISOTOPES