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JAEA Reports

The Present situation and future utilization of testing reactors in the world

Ito, Haruhiko; Ide, Hiroshi; Yamaura, Takayuki; Tsuji, Tomoyuki

JAERI-Review 2004-001, 39 Pages, 2004/02

JAERI-Review-2004-001.pdf:2.02MB

no abstracts in English

JAEA Reports

Proceedings of the Seminar on the Utilization of Neutron Irradiation; March 9th 2000, Tokai

Department of JMTR, Oarai; Department of Research Reactor, Tokai; Department of Hot Laboratories, Tokai

JAERI-Conf 2001-018, 109 Pages, 2002/01

JAERI-Conf-2001-018.pdf:13.67MB

The “Seminar on the Utilization of Neutron Irradiation" was held on March 9th 2000 in Tokai establishment as a part of activities of the “Program Committee for Neutron Irradiation". The topics presented in the seminar included the recent irradiation studies on the materials for the light water reactors, development of fusion reactor materials and materials used under high temperature, application of neutron activation and recent activities in the post irradiation examinations. This report contains the shortpapers and the copies of the OHPs presented at the seminar.

Journal Articles

The Development of the advanced temperature control device for the irradiation capsule

Kitajima, Toshio; Abe, Shinichi; Takahashi, Kiyoshi; Onuma, Yuichi; Watanabe, Hiroyuki; Okada, Yuji; Oyake, Noriyuki*

UTNL-R-0404, p.6_1 - 6_9, 2001/00

no abstracts in English

Journal Articles

The 6th Asian Symposium on Research Reactors (ASRR-VI)

Fujiki, Kazuo

Nihon Genshiryoku Gakkai-Shi, 41(9), p.933 - 934, 1999/09

no abstracts in English

JAEA Reports

Safety analysis of JMTR core with 6-MEU fuel elements and 16-LEU fuel elements

Tabata, Toshio; Komukai, Bunsaku; Nagao, Yoshiharu; Shimakawa, Satoshi; Koike, Sumio; Takeda, Takashi; Fujiki, Kazuo

JAERI-Tech 99-021, 68 Pages, 1999/03

JAERI-Tech-99-021.pdf:2.6MB

no abstracts in English

JAEA Reports

Proceedings of the 1st Symposium on Utilization of Research Reactors and JMTR

; Department of JMTR

JAERI-Conf 98-007, 197 Pages, 1998/03

JAERI-Conf-98-007.pdf:17.03MB

no abstracts in English

JAEA Reports

Super-Phenix Benchmark used for Comparison of PNC and CEA Calculation Methods,and of JENDL-3.2 and CARNAVAL IV Nuclear Data

Hunter

PNC TN9410 98-015, 81 Pages, 1998/02

PNC-TN9410-98-015.pdf:3.15MB

The study was carried out within the framework of the PNC-CEA collaboration agreement. Data were provided, by CEA, for an experimental loading of a start-up core in Super-Phenix. This data was used at PNC to produce core flux snapshot calculations. CEA undertook a comparison of the PNC results with the equivalent calculations carried out by CEA, and also with experimental measurements from SPX. The resu1ts revealed a systematic radial flux tilt between the calculations and the reactor measurements, with the PNC tilts only $$sim$$30-401 of those from CEA. CEA carried out an analysis of the component causes of the radial tilt. It was concluded that a major cause of radia1 tilt differences between the PNC and CEA calculations lay in the nuclear datasets used: JENDL-3.2 and CARNAVAL IV. For the final stage of the study, PNC undertook a sensitivity analysis, to examine the detailed differences between the two sets of nuclear data. The PNC flux calculations modelled SPX in both 2D (RZ) and 3D (hex-Z) geometries, using the diffusion programs CITATION and MOSES. The sensitivity analysis of the differences between the JENDL-3.2 and CARNAVAL IV nuclear datasets used the SAGEP calculational route. Both datasets were condensed to a single, non-standard, set of energy group boundaries. There were some incompatibilities in the cross-section formats of the two datasets. The sensitivity analysis showed that a relatively small number of nuclear data items contributed the bulk of the radial tilt difference between calculations with JENDL-3.2 and with CARNAVAL IV. A direct comparison between JENDL-3.2 and CARNAVAL IV data revealed the following. The Nu values showed little difference (<5|%). The only large fission cross-section differences were at low energy (<30% otherwise, with <10% typical). Although down-scattering reactions showed some large fractional differences, absolute differences were negligible compared with in-group scattering; for in-group scattering fractional ...

Journal Articles

Summary and results of the JPDR dismantling project

Miyasaka, Yasuhiko

Dekomisshoningu Giho, 0(14), p.24 - 33, 1996/08

no abstracts in English

Journal Articles

Status of reduced enrichment program for research reactors in Japan

Kanda, Keiji*; *; Isshiki, Masahiko; Baba, Osamu; Tsuruta, Harumichi

1996 Int. Meeting on Reduced Enrichment for Research and Test Reactors (RERTR), 0, 8 Pages, 1996/00

no abstracts in English

Journal Articles

Status and future plan of utilization in JMTR

Tsuchida, Noboru; Ooka, Norikazu; ;

ASRR-V: Proc., 5th Asian Symp. on Research Reactors, 1, p.123 - 130, 1996/00

no abstracts in English

JAEA Reports

Development of maintenance engineering system

JAERI-Research 95-026, 54 Pages, 1995/03

JAERI-Research-95-026.pdf:2.47MB

no abstracts in English

Journal Articles

Dismantling of Japan Power Demonstration Reactor (JPDR)

Miyasaka, Yasuhiko

Enerugi Rebyu, 15(9), p.11 - 15, 1995/00

no abstracts in English

JAEA Reports

Planning study of in-pile loop tests for the evaluation of fission product transport

Nakagiri, Toshio; ; Ohno, Shuji; ; *; Koyama, Shinichi; Shimoyama, Kazuhito

PNC TN9510 94-001, 246 Pages, 1994/05

PNC-TN9510-94-001.pdf:14.89MB

None

Journal Articles

16th International Meeting on Reduced Enrichment for Research and Test Reactors

Saito, Minoru; Yamamoto, Katsumune

Nihon Genshiryoku Gakkai-Shi, 36(4), p.321 - 322, 1994/00

no abstracts in English

JAEA Reports

None

; Haga, Kazuo;

PNC TN9000 93-007, 68 Pages, 1993/10

PNC-TN9000-93-007.pdf:2.07MB

None

JAEA Reports

Conceptual study of test reactor for fuel irradiation/reactor performance research

Inabe, Teruo; ; ; Yonomoto, Taisuke; *; Akutsu, Cho; ; Iwamura, Takamichi; Okubo, Tsutomu; Osugi, Toshitaka; et al.

JAERI-M 93-106, 104 Pages, 1993/05

JAERI-M-93-106.pdf:2.77MB

no abstracts in English

Journal Articles

Present status on research reactor utilized studies in JAERI

Takahashi, Hidetake; ; Hoshi, Michio; Funahashi, Satoru; Tsuruno, Akira; Kodaira, Tsuneo

Enerugi Rebyu, 11(10), p.4 - 30, 1991/09

no abstracts in English

JAEA Reports

The draing of noble metals in vitrified nuclear waste by a melter with a sloping floor -Research Report on Solidification of High-Level Liquid waste

; Takahashi, Takeshi

PNC TN8410 91-158, 19 Pages, 1991/04

Joule heated ceramic melter has been developed to vitrify high-level liquid wastes (HLLW) from reprocessing nuclear spent fuel at Power Reacter and Nuclear Fuel Development Corporation (PNC). Noble metal elements such as ruthenium, paladium and rhodium are contained as fission products in the HLLW. The operational chracteristics of Joule-heated ceramic melter were studied on the effects of these elements. Two small scale melters with sloped floor were fabricated and tested. The slope was 30$$^{circ}$$ and 45$$^{circ}$$ for each. The operational characteristics including electrode resistance, temperature profile etc. were monitored. The drain efficiency of noble metal elements from the melters during the glass drain operation were evaluated. After the test operation, the melters were cut after cooled with the glass left in the melting cavities, following the termination of the test operations. The sediments of the precipitations of the noble metal elements were evaluated from the sectional observation for the melter. The results from the studies were compared between 30$$^{circ}$$ and 45$$^{circ}$$ slopes and discussed. It was concluded that the 45$$^{circ}$$ sloped floor was clearly effective to drain the noble metal elements and the structure of the 45$$^{circ}$$ sloped floor melter was compatible with some amount of precipitates at the bottom.

JAEA Reports

Experiments on tritium behavior in beryllium, 2; Tritium released by recoil and diffusion

Ishitsuka, Etsuo; Kawamura, Hiroshi; Sugai, Hiroyuki; Tanase, Masakazu;

JAERI-M 90-013, 37 Pages, 1990/02

JAERI-M-90-013.pdf:1.19MB

no abstracts in English

Journal Articles

The Japan Materials Testing Reactor

; Hirata, Mitsuho

Multipurpose Research Reactors, p.331 - 338, 1988/00

no abstracts in English

34 (Records 1-20 displayed on this page)