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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 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Initial search for triggered gamma emission from Hf-178(m2) using the YSU miniball array Tvůrce(i) 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)Zdroj.dok. Hyperfine Interactions - ISSN 0304-3843
Roč. 143, 1, 2, 3, 4 (2002), s. 37-54Poč.str. 18 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova triggered gamma emission ; Hf-178(m2) ; nuclear batteries Vědní obor RIV BG - Jaderná, atomová a mol. fyzika, urychlovače CEZ AV0Z1048901 - UJF-V Anotace 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. Pracoviště Ústav jaderné fyziky Kontakt Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Rok sběru 2004
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