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Journal Articles

Multiple prompt $$gamma$$-ray analysis and construction of its beam line

Oshima, Masumi; Toh, Yosuke; Kimura, Atsushi; Ebihara, Mitsuru*; Oura, Yasuji*; Ito, Yasuo*; Sawahata, Hiroyuki*; Matsuo, Motoyuki*

Journal of Radioanalytical and Nuclear Chemistry, 271(2), p.317 - 321, 2007/02

https://doi.org/10.1007/s10967-007-0210-5
 Times Cited Count：11 Percentile：61.1(Chemistry, Analytical)

By combining neutron activation analysis with multiple $$gamma$$-ray detection, we have proved better sensitivity and resolution for the trace element analysis than the ordinary single $$gamma$$-ray detection method. We now try to apply the multiple $$gamma$$-ray detection method to the prompt $$gamma$$-ray analysis (PGA). We have established a new cold neutron beam line for PGA in Japan Research Reactor, JRR-3M, at Tokai establishment of Japan Atomic Energy Research Institute(JAERI). It consists of a beam shutter, a beam attenuator, a $$gamma$$-ray detector array, a sample changer, and a beam stopper. We construct a high-efficiency $$gamma$$-ray detector array specially designed for this purpose. Its performance has been evaluated with the Monte Carlo simulation code, GEANT 4.5.0.

Journal Articles

Isotopic ratio of $$^{129}$$I/$$^{127}$$I in seaweed measured by neutron activation analysis with $$gamma$$-$$gamma$$ coincidence

Toh, Yosuke; Hatsukawa, Yuichi; Oshima, Masumi; Shinohara, Nobuo; Hayakawa, Takehito; Kushita, Kohei; Ueno, Takashi

Health Physics, 83(1), p.110 - 113, 2002/07

https://doi.org/10.1097/00004032-200207000-00013
 Times Cited Count：10 Percentile：54.86(Environmental Sciences)

no abstracts in English

Journal Articles

Simultaneous quantification of 49 trace elements with improved neutron activation analysis

Oshima, Masumi

Isotope News, (553), p.8 - 10, 2000/06

http://ci.nii.ac.jp/naid/10004563376

no abstracts in English

Journal Articles

Development of trace element analysis by using multi dimensional analysis

Hatsukawa, Yuichi; Oshima, Masumi; Hayakawa, Takehito; Toh, Yosuke; Shinohara, Nobuo

Hoshaka Bunseki, (10), p.19 - 20, 2000/03

http://ci.nii.ac.jp/naid/110009481740

no abstracts in English

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