6533b824fe1ef96bd127ff41
RESEARCH PRODUCT
Status of delayed-neutron precursor data: half-lives and neutron emission probabilities
Peter MöllerKarl-ludwig KratzB. Pfeiffersubject
PhysicsNuclear physicsNuclear Energy and EngineeringNeutron emissionEnergy Engineering and Power TechnologySafety Risk Reliability and QualityWaste Management and DisposalDelayed neutrondescription
Abstract We present in this paper a compilation of the present status of experimental delayed-neutron precursor data; i.e. β-decay half-lives ( T 1/2 ) and neutron emission probabilities ( P n ) in the fission-product region (27 ≤ Z ≤ 57). These data are compared to two model predictions of substantially different sophistication: (i) an update of the empirical Kratz-Herrmann formula (KHF), and (ii) a unified macroscopic-microscopic model within the quasi-particle random-phase approximation (QRPA). Both models are also used to calculate so far unknown T 1/2 and P n values up to Z = 63. A number of possible refinements in the microscopic calculations are suggested to further improve the nuclear-physics foundation of these data for reactor and astrophysical applications.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-07-01 | Progress in Nuclear Energy |