6533b7ddfe1ef96bd12747f8
RESEARCH PRODUCT
Decay of24Al and24Almto γ-Ray and α-Particle Emitting States in24Mg
K. J. EskolaA HautojärviA HautojärviM. KortelahtiJ ÄYstöJ ÄYstöJ. Honkanensubject
Physics010308 nuclear & particles physicsNuclear isomerCondensed Matter Physics01 natural sciencesAtomic and Molecular Physics and OpticsIntensity (physics)0103 physical sciencesLevel structureParticleAtomic physics010306 general physicsSpectroscopyα particlesMathematical PhysicsExcitationdescription
The level structure of 24Mg and decay properties of 129 ms 24Alm and 2.07 s 24Al have been investigated by means of γ-ray and particle spectroscopy. The energy and intensity of the isomeric transition were measured to be 425.8 ± 0.1 keV and (82.5 ± 3.0)%, respectively. The isomer was observed to decay via a super-allowed transition with a log ft value of 3.51 ± 0.04 to its 1+, 9965.2 ± 1.5 keV analog state in 24Mg. In addition, decay to seven particle-emitting levels and four levels depopulated by γ-ray emission were observed. In the decay of 2.07 s 24Al a new delayed α-particle group with an energy 3.04 MeV and three new γ-transitions were observed. More accurate values than those reported in earlier studies are given for γ-ray energies and intensities, and also for deduced excitation energies in 24Mg. Particle branches (per disintegration) were measured for the observed delayed particle groups.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1979-03-01 | Physica Scripta |