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JAEA Reports

Calculation of nuclear core parameters for HTTR; Report of summer holiday practical training 2021

Isogawa, Hiroki*; Naoi, Motomasa*; Yamasaki, Seiji*; Ho, H. Q.; Katayama, Kazunari*; Matsuura, Hideaki*; Fujimoto, Nozomu*; Ishitsuka, Etsuo

JAEA-Technology 2022-015, 18 Pages, 2022/07

JAEA-Technology-2022-015.pdf:1.37MB

As a summer holiday practical training 2021, the impact of 10 years long-term shutdown on critical control rod position of the HTTR and the delayed neutron fraction ( $_{rm eff}$ ) of the VHTRC-1 core were investigated using Monte-Carlo MVP code. As a result, a long-term shutdown of 10 years caused the critical control rods of the HTTR to withdraw about 4.00.8 cm compared to 3.9 cm in the experiment. The change in critical control rods position of the HTTR is due to the change of some fission products such as $^{241}$ Pu, $^{241}$ Am, $^{147}$ Pm, $^{147}$ Sm, $^{155}$ Gd. Regarding the $_{rm eff}$ calculation of the VHTRC-1 core, the $_{rm eff}$ value is underestimate of about 10% in comparison with the experiment value.

Journal Articles

Preparation for restarting the high temperature engineering test reactor; Development of utility tool for auto seeking critical control rod position

Ho, H. Q.; Fujimoto, Nozomu*; Hamamoto, Shimpei; Nagasumi, Satoru; Goto, Minoru; Ishitsuka, Etsuo

Nuclear Engineering and Design, 377, p.111161_1 - 111161_9, 2021/06

https://doi.org/10.1016/j.nucengdes.2021.111161

Times Cited Count：3 Percentile：45.99(Nuclear Science & Technology)

Journal Articles

ITER physics basis, 8; Plasma operation and control

ITER Physics Expert Group on Disruptions, Plasma Control, and MHD; ITER Physics Expert Group on Energetic Particles, Heating and Current Drive; ITER Physics Expert Group on Diagnostics

Nuclear Fusion, 39(12), p.2577 - 2625, 1999/00

https://doi.org/10.1088/0029-5515/39/12/308

no abstracts in English

JAEA Reports

Study on nuclear physics of high burnup full MOX PWR core

Kugo, Teruhiko; Shimada, Shoichiro*; Okubo, Tsutomu; Ochiai, Masaaki

JAERI-Research 98-059, 40 Pages, 1998/10

JAERI-Research-98-059.pdf:1.73MB

no abstracts in English

JAEA Reports

Preliminary analyses for HTTR's start-up physics tests by HTTR nuclear characteristics evaluation code system

Fujimoto, Nozomu; Nojiri, Naoki; Nakano, Masaaki*; Takeuchi, Mitsuo; Fujisaki, Shingo; Yamashita, Kiyonobu

JAERI-Tech 98-021, 66 Pages, 1998/06

JAERI-Tech-98-021.pdf:2.63MB

no abstracts in English

Journal Articles

The Present active status of domestic critical assemblies and the perspective for their future, 2-4; Very high temperature reactor critical assembly (VHTRC)

Akino, Fujiyoshi; Yamane, Tsuyoshi

Nihon Genshiryoku Gakkai-Shi, 40(4), p.262 - 264, 1998/00

no abstracts in English

Journal Articles

Optimization method of rod-type burnable poisons for nuclear designs of HTGRs

Yamashita, Kiyonobu

Journal of Nuclear Science and Technology, 31(9), p.979 - 985, 1994/09

https://doi.org/10.3327/jnst.31.979

Times Cited Count：6 Percentile：52.28(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Development and valiation of nuclear design code system for High Temperature Engineering Test Reactor (HTTR)

Yamashita, Kiyonobu; Shindo, Ryuichi; Murata, Isao

The Safety,Status and Future of Non-Commercial Reactors and Irradiation Facilities,Vol. 1, p.350 - 358, 1990/09

no abstracts in English

JAEA Reports

Ho, H. Q.; Fujimoto, Nozomu*; Hamamoto, Shimpei; Nagasumi, Satoru; Goto, Minoru; Ishitsuka, Etsuo

no journal, ,

Oral presentation

Development of a utility tool for auto-seeking critical control rod position of the high temperature engineering test reactor

Ho, H. Q.; Fujimoto, Nozomu*; Hamamoto, Shimpei; Nagasumi, Satoru; Goto, Minoru; Ishitsuka, Etsuo

no journal, ,

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Calculation of nuclear core parameters for HTTR; Report of summer holiday practical training 2021

Preparation for restarting the high temperature engineering test reactor; Development of utility tool for auto seeking critical control rod position

ITER physics basis, 8; Plasma operation and control

Study on nuclear physics of high burnup full MOX PWR core

Preliminary analyses for HTTR's start-up physics tests by HTTR nuclear characteristics evaluation code system

The Present active status of domestic critical assemblies and the perspective for their future, 2-4; Very high temperature reactor critical assembly (VHTRC)

Optimization method of rod-type burnable poisons for nuclear designs of HTGRs

Development and valiation of nuclear design code system for High Temperature Engineering Test Reactor (HTTR)

Overview of FER(Fusion Experimental Reactor); FY 1989 report

Optimization of uranium isotope distribution and burnable poison of High temperature engineering test reactor(HTTR)

Japanese Contributions to IAEA INTOR Workshop,Phase Two A,Part 2 Chapter VIII:Physics

IAEA INTOR Workshop Report, Group 12; Start-up,Burn and Shutdown

Design Studies for the Mark-III Core of Experimental Multi-Purpose VHTR

Reference Core Design Mark-III of the Experimental Multi-Purpose, High-Temperature, Gas Cooled Reactor -Nuclear Study of Core Reactivity Comtrol System-

Calculation of control rods position for restarting the high temperature engineering test reactor

Development of a utility tool for auto-seeking critical control rod position of the high temperature engineering test reactor