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Initial search for triggered gamma emission from Hf-178(m2) using the YSU miniball array
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SYSNO ASEP 0185912 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Initial search for triggered gamma emission from Hf-178(m2) using the YSU miniball array Author(s) Carroll, J. J. (US)
Burnett, J. (US)
Drummond, T. (US)
Lepak, J. (US)
Propri, R. (US)
Smith, D. (DE)
Karamian, S. A. (RU)
Adam, Jindřich (UJF-V) RID
Stedile, F. (US)
Agee, FJ. (US)Source Title Hyperfine Interactions - ISSN 0304-3843
Roč. 143, 1, 2, 3, 4 (2002), s. 37-54Number of pages 18 s. Language eng - English Country NL - Netherlands Keywords triggered gamma emission ; Hf-178(m2) ; nuclear batteries Subject RIV BG - Nuclear, Atomic and Molecular Physics, Colliders CEZ AV0Z1048901 - UJF-V Annotation Experiments with the long-lived, high-K isomer Hf-178(m2) have been recognized as intriguing tests of multi-quasiparticle state structures and their interactions with external radiation. A triggered release of the energy stored by this isomer, 2.5 MeV per nucleus or 1.2 GJ/gram, in the form of a gamma-ray burst might prove valuable for numerous applications. The observation of "accelerated" decay of Hf-178(m2) during irradiation by 90-keV bremsstrahlung has already been reported, but with poor statistical accuracy due to the experimental approach. That approach employed single Ge detectors to seek increases in the areas of peaks at energies corresponding to transitions in the spontaneous decay of the isomer. The need for better quality data to confirm those results has motivated the development of improved detection concepts. One such concept was utilized here to perform an initial search for low-energy (< 20 keV) triggered gamma emission from Hf-178(m2) using the YSU miniball detector array. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2004
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