Production of the Hf-178m2 isomer using a 4.5-GeV electron accelerator

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F04%3A00105624" target="_blank" >RIV/61389005:_____/04:00105624 - 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 the Hf-178m2 isomer using a 4.5-GeV electron accelerator
Original language description
High-productivity methods are required for the accumulation of long-lived isomers in amounts that are sufficient for the creation of experimental targets. A tantalum sample was activated with the Yerevan synchrotron using 4.5-GeV bremsstrahlung and the presence of Hf-178m2 was detected with good statistical accuracy by gamma-activity measurements. The integrated and mean cross-section values were deduced from the experiment. The isomer-to-ground-state ratio was then estimated and compared with that known for the p + Ta reaction studied at 660 MeV. In the present experiment, both converter and target were relatively thin for better definition of the experimental conditions. However, an assembly designed for high-productivity irradiations should be thickand then the converter can also serve as the target sample when irradiated with a high-energy electron beam. The optimization of the isomer production was solved analytically and the largest estimated yield was determined as calibrate...
Czech name
Produkce izomeru Hf-178m2 pomocí 4.5 GeV elektronového urychlovače
Czech description
Vzorek tantalu aktivován jerevanským urychlovačem s využitím brzdného záření 4.5 GeV. Přítomnost Hf-178m2 detektována s dobrou statistickou přesností pomocí gama aktivačních měření.

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/KSK1048102" target="_blank" >KSK1048102: Fundamental physical laws of microworld and macroworld, the behaviour of matter and radiation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2004
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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