6533b861fe1ef96bd12c56bf
RESEARCH PRODUCT
Level structure of170Er observed in the decay of the 2.76 min170Ho
R. KatajanheimoE. HammarénT. Tuurnalasubject
PhysicsNuclear and High Energy PhysicsAngular momentumIsotope010308 nuclear & particles physicsElementary particleGeneral Medicine01 natural sciencesSpectral lineCoincidence0103 physical sciencesLevel structureNuclear fusionAtomic physics010306 general physicsGround statedescription
TheΒ−-decay of the longer-lived170Ho isomer produced through the170Er(n, p)170Ho reaction has been investigated by using a versastile detector and coincidence equipment. The half-life andΒ−-decay energy were determined to beT1/2=2.76±0.05 min andQβ =3.85±0.15 MeV, respectively. In addition to the ground state band and some higher energy levels, the proposed level scheme of170Er contains 11 states between 1.0 and 1.6 MeV (6 new ones), which are connected mutually by previously unknown low-energy transitions. Spin and/or parity assignments based mainly on coincidence data and multipolarity determinations are suggested for most of these states. By using systematic considerations and the nuclear projection model calculations several bands withK≧2 can be assigned tentatively. As a side result the half-life of169Ho was determined to be 4.7 ±0.2 min.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1978-03-01 | Zeitschrift f�r Physik A Atoms and Nuclei |