6533b86cfe1ef96bd12c8a0f

RESEARCH PRODUCT

Properties of isomeric states and the ?d 3/2-vi 13/2 multiplet in194Au

T. KomppaM. PiiparinenR. KomuM. KortelahtiA. PakkanenJuha ÄYstö

subject

PhysicsNuclear and High Energy PhysicslawCyclotronLevel structureNuclear fusionElementary particleElectronAtomic physicsMultipletBeam (structure)Spectral linelaw.invention

description

The level structure of194Au has been studied by observing prompt and delayedγ-rays following194Pt(p,n) and195Pt(p,2n) reactions. The conversion electron andγ-ray spectra from the decay of the 0.42s (10−) and 0.60s (5+) isomers at 476 keV and 107.4 keV, respectively, have been measured using the He-jet method. The half-lives of the 6+ (278.2 keV, 1.1±0.4 ns), 7+ (224.6 keV, 2.6±0.2 ns) and 8+ (406.8 keV, 2.9±0.4 ns) members of theπd3/2-vi13/2 multiplet have been obtained from the time distributions between cyclotron beam pulses andγ-rays depopulating these levels. A calculation made assuming a pure two-particle configuration for the multiplet predicts very well theB(E2) values for the transitions between the levels of this multiplet but the calculatedB(M1) values are not in agreement with experimental results.

https://doi.org/10.1007/bf01414895