6533b838fe1ef96bd12a4e82

RESEARCH PRODUCT

Reactor Decay Heat inPu239: Solving theγDiscrepancy in the 4–3000-s Cooling Period

Christine WeberEnrique NácherT. SonodaAri JokinenA. VitezA. AlgoraJuho RissanenA. B. Perez-cerdanV.-v. ElomaaT. KesslerW. HüllerK. BurkardBerta RubioLuis CaballeroHeikki PenttiläF. MolinaL. CsigeIain MooreD. JordanAnu KankainenA. L. NicholsTommi EronenL. BatistM. CsatlósJani HakalaA. NieminenJ. RonkainenM.d. HunyadiUlrike HagerJuha ÄYstöA. A. SonzogniKari PeräjärviT. YoshidaPasi KarvonenSaidur RahamanA. KrasznahorkayJorge AgramuntAntti SaastamoinenJ. GulyásJ. L. TainSami Rinta-antilaW. Gelletly

subject

Nuclear physicsPhysicsDouble beta decayGeneral Physics and AstronomyOrder (ring theory)Isobaric processAbsorption (logic)Atomic physicsDecay heatPenning trapBeta decayParticle detector

description

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.

yearjournalcountryeditionlanguage
2010-11-08Physical Review Letters
https://doi.org/10.1103/physrevlett.105.202501