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Journal Articles

Fabrication development of high-density MoO$$_{3}$$ pellets for (n, $$gamma$$) $$^{99}$$Mo production

Nishikata, Kaori; Kimura, Akihiro; Tsuchiya, Kunihiko; Suzuki, Kunihiko*; Akiyama, Hiroaki*; Nagakura, Masaaki*; Kawauchi, Yukimasa*; Tanase, Masakazu*

Proceedings of 5th International Symposium on Material Testing Reactors (ISMTR-5) (Internet), 9 Pages, 2012/10

http://www.murr.missouri.edu/ismtr/papercall/Papers/Ecodesign/Suzuki_K_PAPER=Fabrication%20Dev%20of%20High%20Dens%20MoO3%20Pellets.pdf

In this study, experimental fabrication tests of the high-density MoO$$_{3}$$ pellets were carried out by the Plasma Activated Sintering (PAS) method, which requires relatively lower temperature and shorter time to fabricate the pellets. From the results, the PAS method combined with oxidation process, prior to dissolution into sodium hydroxide solution, is a useful measure to fabricate high-density MoO$$_{3}$$ Pellets for the future domestic production of $$^{rm 99m}$$Tc. The irradiation tests and characterization with these pellets will be carried out under the international cooperation.

Oral presentation

Intercomparison of $$gamma$$ ray analysis softwares using reference spectra

Aoyama, Michio*; Akiyama, Masakazu*; Asai, Masato; Abe, Takaaki*; Sato, Yasushi*; Takano, Naoto*; Takamiya, Koichi*; Hamajima, Yasunori*; Muto, Giichi*; Yamada, Takashi*; et al.

no journal, , 

Performance of $$gamma$$-ray spectrum analysis softwares is significantly important because it directly affects the results of nuclide identification and radioactivity measurement. The Expert Committee on Next-generation Gamma-ray Spectrometry, Science and Engineering Committee, Japan Radioisotope Association, performed intercomparison of $$gamma$$-ray analysis software by analyzing the same reference spectra with several softwares used in Japan, to know and to improve their performance. It was found that the number of peaks detected by the peak search analysis and deduced peak areas were different among each of the softwares. The reasons why such differences occur are investigated in detail.

Oral presentation

Development of true coincidence summing correction for cascade $$gamma$$-ray emitters including $$^{134}$$Cs, 1; Collaborative experiment by the committee on preparation of reference materials for radioactivity analysis of JSAC

Yonezawa, Chushiro*; Kakita, Kazutoshi*; Takahashi, Takanori*; Aono, Tatsuo*; Maeda, Satoshi; Abe, Takaaki*; Arakawa, Fumihiro*; Kiho, Nobuharu*; Akiyama, Masakazu*; Muramatsu, Isamu*; et al.

no journal, , 

no abstracts in English

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