Excitation of the {sup 180}Ta{sup m} isomer in ({gamma}, n) reactions

Journal Article · Thu Jun 10 04:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.59134· OSTI ID:21205558

Tonchev, A P; Harmon, J F; King, B D ^[1]

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1. Physics Department, Idaho State University, Pocatello, Idaho 83209 (United States)

The yield has been determined for the excitation of {sup 180}Ta{sup g}(J{sup {pi}}=1{sup +}) from the {sup 181}Ta({gamma},n) reaction by measurements of {gamma} rays emitted following the electron capture and {beta} decays of 8.15 h ground state. The probability {sigma}{sub m}/({sigma}{sub m}+{sigma}{sub g}) for the production of the {sup 180}Ta{sup m} isomer (J{sup {pi}}=9{sup -}) after {gamma} absorption was deduced. The role of initial and final spin on reaction yield, along with the relevance for nucleosynthesis of {sup 180}Ta{sup m}, is discussed.

• OSTI ID: 21205558
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 475; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ABSORPTION
BETA DECAY
ELECTRON CAPTURE
EXCITATION
GAMMA DETECTION
GROUND STATES
ISOMERIC NUCLEI
NEUTRON SPECTRA
NUCLEAR REACTION YIELD
NUCLEAR STRUCTURE
NUCLEOSYNTHESIS
PHOTON EMISSION
PHOTON-NUCLEON INTERACTIONS
PHOTONUCLEAR REACTIONS
SPIN
TANTALUM 181 TARGET