JOPSS - Search Results

Journal Articles

Sensitivity of charged particle activation analysis for long-lived radioactive nuclide determination

Oshima, Masumi*; Yamaguchi, Yurie*; Asai, Masato; Tsukada, Kazuaki; Goto, Jun*; Bamba, Shigeru*; Bi, C.*; Morimoto, Takao*

Journal of Nuclear Science and Technology, 56(9-10), p.866 - 872, 2019/09

https://doi.org/10.1080/00223131.2019.1593892

Times Cited Count：1 Percentile：11.15(Nuclear Science & Technology)

Sensitivity of charged particle activation analysis with 8 MeV proton beam was studied for determination of 35 long-lived radioactive nuclides. Reaction cross sections for those nuclides were estimated with ALICE-91 code and isomer yield ratios were estimated from those of neighboring isotopes by taking into account their spins and parities. It was found that the proposed charged particle activation analysis should show high sensitivity for the determination of several hardly measurable nuclides with long half-lives such as $^{135}$ Cs, $^{244}$ Pu, $^{129}$ I, $^{126}$ Sn, $^{93}$ Mo, $^{107}$ Pd, $^{236}$ U, $^{248}$ Cm, and $^{237}$ Np.

Journal Articles

Zr separation from high-level liquid waste with a novel hydroxyacetoamide type extractant

Morita, Keisuke; Suzuki, Hideya; Matsumura, Tatsuro; Takahashi, Yuya*; Omori, Takashi*; Kaneko, Masaaki*; Asano, Kazuhito*

Proceedings of International Nuclear Fuel Cycle Conference / Light Water Reactor Fuel Performance Conference (Global/Top Fuel 2019) (USB Flash Drive), p.464 - 468, 2019/09

High level liquid waste (HLLW) contains several radionuclides with half-lives longer than 10 $^{6}$ year. For reduce environmental burden of waste disposal, minor actinoids and long-lived fission products will to be partitioned and transmuted. JAEA and Toshiba developed process for recovering Se, Zr, Pd and Cs from HLLW. Solvent extraction for Zr with novel extractant, -didodecyl-2-hydroxyacetoamide (HAA) was detailed. The HAA system showed high selectivity for Zr, as indicated by the extraction order of Zr Mo Pd Ag Sb Sn Lns Fe. The extracted species was determined as Zr(HAA) $_{3}$ (NO $_{3}$ ) $_{4}$ (HNO $_{3}$ ) $_{x}$ . A continuous countercurrent extraction with HAA was applied to a simulated, concentrated HLLW after Pd, Se, and Cs removal, where the quantitative extraction of Zr and Mo was effectively demonstrated.

Journal Articles

Present state of partitioning and transmutation of long-lived nuclides, 1; Significance of partitioning and transmutation and partitioning and transmutation systems

Minato, Kazuo; Tsujimoto, Kazufumi; Tanabe, Hiromi*; Fujimura, Koji*

Nihon Genshiryoku Gakkai-Shi ATOMO, 59(8), p.475 - 479, 2017/08

no abstracts in English

Journal Articles

R&D on nuclear transmutation, A; Partitioning of high-level radioactive waste

Morita, Yasuji

Genshikaku Kenkyu, 47(6), p.21 - 30, 2003/06

This paper describes the present state and future prospect of research and development on the separation of long-lived radionuclides from high-level waste (partitioning), which is indispensable for the transmutation of those nuclides. The main items described are composition of high-level waste, selection of elements to be separated, the purpose of partitioining, and development of partitioning process in JAERI.

JAEA Reports

Report for the Participation in GLOBAL2001

Morimoto, Kyoichi; Shibata, Atsuhiro; Shigetome, Yoshiaki

JNC TN8200 2001-006, 19 Pages, 2001/12

JNC-TN8200-2001-006.pdf:0.92MB

Global2001 (International Conference: "Back-End of the Fuel Cycle: From Research to Solutions ") was held for six days from September 9 to September 14 in Paris in France. In this year, there were about 420 participants from each country and about 70 people participated from Japan. This conference consisted of the reactor and fuel cycle field, the reprocessing field, the disposal field, and the non-proliferation field, etc. The main topics of this conference were the back end of the nuclear fuel cycle, the management of long-lived nuclide, the advanced concept of reactor and fuels. Advanced fuel recycle technology division reported about the feasibility study on commercialized FR cycle systems, the nuclear fuel and the reprocessing process in the oral session and poster session. Each report was audited and information was collected. It is possible to refer to information on Global2001 by the following homepages. http://www.cea.fr/conferences/global2001 /index.him*

Journal Articles

Transmutation of long-lived nuclides

Mukaiyama, Takehiko

Genshikaku Kenkyu, 46(2), p.47 - 73, 2001/06

no abstracts in English

Journal Articles

Review of research and development of accelerator-driven system in Japan for transmutation of long-lived nuclides

Mukaiyama, Takehiko; Takizuka, Takakazu; Mizumoto, Motoharu; Ikeda, Yujiro; Ogawa, Toru; Hasegawa, Akira; Takada, Hiroshi; Takano, Hideki

Progress in Nuclear Energy, 38(1-2), p.107 - 134, 2001/02

https://doi.org/10.1016/S0149-1970(00)00098-6

Times Cited Count：68 Percentile：96.69(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

None

Funasaka, Hideyuki; ;

JNC TN1200 2001-002, 209 Pages, 2001/01

JNC-TN1200-2001-002.pdf:7.84MB

no abstracts in English

Journal Articles

Transmutation of long-lived radioactive waste based on double-strata concept

Takano, Hideki; Nishihara, Kenji; Tsujimoto, Kazufumi; Sasa, Toshinobu; Oigawa, Hiroyuki; Takizuka, Takakazu

Progress in Nuclear Energy, 37(1-4), p.371 - 376, 2000/12

https://doi.org/10.1016/S0149-1970(00)00073-1

Times Cited Count：17 Percentile：72(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

None

JNC TN1440 2000-007, 115 Pages, 2000/08

JNC-TN1440-2000-007.pdf:4.45MB

no abstracts in English

Journal Articles

Present status of research & development on accelerator-driven nuclear systems

Mukaiyama, Takehiko

Genshikaku Kenkyu, 44(6), p.23 - 32, 2000/04

no abstracts in English

JAEA Reports

Measurement of neutron capture cross sections of Tc-99

JNC TJ9400 2000-008, 61 Pages, 2000/02

JNC-TJ9400-2000-008.pdf:2.5MB

For studies on nuclear transmutation of long-lived fission products (LLFPs) in a fast reactor, detailed characteristics of reactor core such as transmutation performance have to be investigated, so accurate neutron cross section data of LLFPs become necessary. Therefore, the keV-neutron capture cross sections of Tc-99, which is one of important LLFPs, were measured in the present study to obtain the accurate data. The measurement was relative to the standard capture cross sections of Au-197. A neutron time-of-flight method was adopted with a ns-pulsed neutron source by a Pelletron accelerator and a large anti-Compton NaI(TI) gamma-ray detector. As a result, the capture cross sections of Tc-99 were obtained with the error of about 5 % in the incident neutlon energy region of 10 to 600 keV. The present data were compared with other experimental data and the evaluated values of JENDL-3.2, and it was found that the evaluations of JENDL-3.2 were 15-20 % smaller than the present measurements.

Journal Articles