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Benchmark experiment for the cross section of the Mo-100(p,2n)Tc-99m and Mo-100(p,pn)Mo-99 reactions

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Title: Benchmark experiment for the cross section of the Mo-100(p,2n)Tc-99m and Mo-100(p,pn)Mo-99 reactions
Authors: Takacs, S. Browse this author
Ditroi, F. Browse this author
Aikawa, M. Browse this author →KAKEN DB
Haba, H. Browse this author
Otuka, N. Browse this author
Keywords: Tc-99m
Thick target count rate
Cross section
Issue Date: 15-May-2016
Publisher: Elsevier
Journal Title: Nuclear Instruments and Methods in Physics Research Section B : Beam Interactions with Materials and Atoms
Volume: 375
Start Page: 60
End Page: 66
Publisher DOI: 10.1016/j.nimb.2016.03.040
Abstract: As nuclear medicine community has shown an increasing interest in accelerator produced Tc-99m radionuclide, the possible alternative direct production routes for producing Tc-99m were investigated intensively. One of these accelerator production routes is based on the Mo-100(p,2n)Tc-99m reaction. The cross section of this nuclear reaction was studied by several laboratories earlier but the available data-sets are not in good agreement. For large scale accelerator production of Tc-99m based on the (100)mMo(p,2n)Tc-99m reaction, a well-defined excitation function is required to optimise the production process effectively. One of our recent publications pointed out that most of the available experimental excitation functions for the Mo-100 (p,2n)(99)mTc reaction have the same general shape while their amplitudes are different. To confirm the proper amplitude of the excitation function, results of three independent experiments were presented (Takacs et al., 2015). In this work we present results of a thick target count rate measurement of the E-gamma = 140.5 keV gamma-line from molybdenum irradiated by E-p = 17.9 MeV proton beam, as an integral benchmark experiment, to prove the cross section data reported for the Mo-100(p,2n)Tc-99m and Mo-100(p,pn)Mo-99 reactions in Takacs et al. (2015).
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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