Production of long-lived hafnium isomers in reactor irradiations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F06%3A00097243" target="_blank" >RIV/61389005:_____/06:00097243 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Production of long-lived hafnium isomers in reactor irradiations
Original language description
Experiments on production of long-lived Hf isomer in reactor irradiation are described. Properties of this nuclide are promissing for its potential application as a relatively safe power source characterized by high density of a accumulated energy. MetalHf samples were activated in the Dubna IBR-2 reactor at positions corresponding to different neutron fluxes. Samples were bare or shielded by Cd and B C layers. The gamma activity of the samples was analyzed with Ge gamma spectrometers during a two-yearperiod following their irradiation. In the presence of dominant activation products Hf and Hf, the high-spin isomers Hf and Hf are also detected despite relatively low levels. The isomer-to-ground state reactins and cross-sections were determined from the measured yields. For Hf, the cross-section for burnup (destruction) by neutron capture after its production was also estimated, clarifying the results from earlier experiments.
Czech name
Produkce dlouhožijících isomerů ozařováním v reaktoru
Czech description
Vzorky Hf byly aktivovány v reaktoru IBR-2v SÚJV Dubna.Byly stíněny Cd a B4C filtrem a bez filtru byly umístěny v různých neutronových tocích.Spektry gama se měřily během dvou let.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
<a href="/en/project/1P04LA213" target="_blank" >1P04LA213: Cooperation of Czech Republic with JINR Dubna in the theoretical and nuclear physics and application of nuclear methods in other fields</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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