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Activation cross sections of longer-lived radionuclides produced in germanium by alpha particle irradiation

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Title: Activation cross sections of longer-lived radionuclides produced in germanium by alpha particle irradiation
Authors: Takacs, S. Browse this author
Takacs, M. P. Browse this author
Ditroi, F. Browse this author
Aikawa, M. Browse this author →KAKEN DB
Raba, H. Browse this author
Komori, Y. Browse this author
Keywords: Alpha particle irradiation
Natural germanium target
Cross sections
Se-72,Se-73,Se-75, (71,72,74,76,78)AS and Ge-69 excitation functions
TENDL comparison
Issue Date: 15-Sep-2016
Publisher: Elsevier
Journal Title: Nuclear Instruments and Methods in Physics Research Section B : Beam Interactions with Materials and Atoms
Volume: 383
Start Page: 213
End Page: 226
Publisher DOI: 10.1016/j.nimb.2016.07.015
Abstract: The cross sections of alpha particles induced nuclear reactions on natural germanium were investigated by using the standard stacked foil target technique, the activation method and high resolution gamma spectrometry. Targets with thickness of about 1 mu m were prepared from natural Ge by vacuum evaporation onto 25 mu m thick polyimide (Kapton) backing foils. Stacks were composed of Kapton-Ge-Ge-Kapton sandwich target foils and additional titanium monitor foils with nominal thickness of 11 mu m to monitor the beam parameters using the Ti-nat(alpha,x)Cr-51 reaction. The irradiations were done with E-alpha = 20.7 and E-alpha = 51.25 MeV, I-alpha = 50 nA alpha particle beams for about 1 h. Direct or cumulative activation cross sections were determined for production of the Se-72,Se-73,Se-75, (71,72,74,76,78)AS and Ge-69 radionuclides: The obtained experimental cross sections were compared to the results of theoretical calculations taken from the TENDL data library based on the TALYS computer code. A comparison was made with available experimental data measured earlier. Thick target yields were deduced from the experimental cross sections and compared with the data published before.
Rights: c2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 合川 正幸

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