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JAEA Reports

Waste Technical Standards Working Group annual report 2016

Waste Technical Standards Working Group

JAEA-Review 2017-017, 112 Pages, 2017/11

JAEA-Review-2017-017.pdf:2.87MB

In Japan Atomic Energy Agency, JAEA, a Waste Technical Standards Working Group has established since FY2015. The Working Group is composed of the members from waste management sections in each site in JAEA and from Radioactive Waste Management and Disposal Project Department. In this Working Group, we discussed quality management on conditioning waste packages, methodologies to evaluate the radioactivity concentration and measures for dismantling waste. This annual report summarizes the results of discussion in FY2016.

Journal Articles

Visit to Japan Chemical Analysis Center

Usuda, Shigekazu

Isotope News, (617), p.20 - 24, 2005/09

no abstracts in English

Journal Articles

Topical understanding of nuclear material measurement$$cdot$$accountancy and quality assurance

Kikuchi, Masahiro*; Muraoka, Susumu*; Osabe, Takeshi*; Terada, Hiromi; Shimizu, Kenichi; Otani, Tetsuo*; Fujimaki, Kazunori*; Ishikawa, Tadatsugu*; Shinohara, Yoshinori*

Dai-23-Kai Kaku Busshitsu Kanri Gakkai Nippon Shibu Nenji Taikai Rombunshu, p.91 - 98, 2002/12

Nuclear material measurement is an important measure to determine the amount of nuclear material of each stage such as receipt, shipment, inventory and hold-up. The material accountancy based on the material balance among the measurements is a measure to control of nuclear material. The material accountancy, from its technical aspect, can be used as promising measures for purposes from operator's level to state's level such as the nuclear safety, property control and environmental preservation other than safeguards measures only to conclude no diversion of nuclear material. This paper discusses various purposes of nuclear material measurements and clarifies the certain function to be expected at each purpose. Based on the discussion, critical points for the quality assurance of each stage are studied.

Journal Articles

Practical gamma-ray spectrometry

Yonezawa, Chushiro; Matsue, Hideaki; Miyamoto, Yutaka; Suzuki, Daisuke; Yasuda, Kenichiro; Inagawa, Jun; Saito, Yoko

Jitsuyo Gamma-sen Sokutei Handobukku, 366 Pages, 2002/06

no abstracts in English

JAEA Reports

Safety admimstration division business report; The second quarter of 2001

Kanamori, Masashi

JNC-TN8440 2001-023, 110 Pages, 2001/12

JNC-TN8440-2001-023.pdf:3.91MB

The business of the Safety administration Division became a wide range such as the management of a labor safety health, the crisis management, the security and the management of an entrance, and the business of the following concerning the Tokai Works, the protection of nuclear materials, the business of the sanction, the nuclear material safeguards, the transport of nuclear materials and the business of a quality assurance. For the purpose of summarizing these businesses and utilizing the data concerning the businesses, the report about the businesses achievement has been periodically drawn up as quarter news since 2001, when the Safety Administration Division was established. This report describes about the business achievement of the second quarter news from July to September in 2001.

JAEA Reports

Safety administration division business report; The first quarter of 2001

Kanamori, Masashi

JNC-TN8440 2001-015, 100 Pages, 2001/09

JNC-TN8440-2001-015.pdf:3.79MB

As a consequence of this reorganization, the business of the Safety Administration Division became a wide range such as the management of a labor safety health, the crisis management, the security and the management of an entrance, the business of the sanction concerning the Tokai Works, the protection of nuclear materials, the nuclear material safeguards, the transport of nuclear materials and the business of a quality assurance. In the respect of the purpose of summarizing these businesses and utilizing the data concerning the businesses, the report about a business achievement was determined to make.

JAEA Reports

Report of lower endplug welding, and testing and inspecting result for MONJU 1$$^{st}$$ reload core fuel assembly

; ; ; *; *; *; *

JNC-TN8440 2000-008, 34 Pages, 2000/02

JNC-TN8440-2000-008.pdf:2.13MB

The procedure and result of lower endplug welding, Test and Inspection and Shipment of the 1$$^{st}$$ reload core fuel assembly (80 Fuel Assemblies) for the fast breeder reactor MONJU should be report, which had examined and inspected in Tamatsukuri Branch, Material Insurance office, Quality Assurance Section, Technical Administration Division, Plutonium Fuel Center (before: Inspection Section, Plutonium Fuel Division), from June 1994 to January 1996. The number of cladding tubes welded to the endplug were total to 13,804, 7,418 for Core - Inside of 43 fuel Assemblies and 6,386 for Core-Outside of 37 fuel Assemblies. 13,794 of them, 7,414 Core-Inside and 6,379 Core-Outside were approved by the test and sent to Plutonium Fuel Center. 10 of them weren't approved mainly because of default welding. Disapproval rating is 0.07%.

JAEA Reports

Certification of reliability of nuclide migration data

Ueda, Shinzo*; *; *; *

JNC-TJ8400 2000-002, 316 Pages, 2000/02

JNC-TJ8400-2000-002.pdf:14.28MB

Japan Nuclear Cycle Development Institute (JNC) have been setting migration parameters and developing its database for the 2nd Progress Report of HLW Geological Disposal (H12 Report). In this study, experimentswere carried out to certify the reliability of parameters and scenario, and examination was carried out to survey procedures of quality management. The main contents are as follows. (1)Data acquisition for certification of migration parameters. The effect of NH$$_{3}$$ complex of Pd on distribution coefficients (Kd) of Pd on both bentonite and rocks, and the effect of sulfate and carbonate complexes of Am on Kds of Am on bentonite are investigated. Kds of Pd depended on NH$$_{4}^{+}$$ concentration in aqueous. The dependence varied with pH. Effects of sulfate and carbonate complexes on Kds of Am were not remarkable. Apparent diffusivities of Cs in bentonite saturated by saline water were measured. It was confirmed that the apparent diffusivities of Cs in saline water were similar to those in pure water. (2)Evaluation of colloidal effect on nuclide migration. An evaluation of validity of analytical model (Hwang's model) for nuclide migration under existence of colloids and investigation of characterization of colloids in groundwater were carried out. As the results, it was indicated that the Hwang's model was appropriate, and it was found that samplingtechnique influenced concentration and size distribution of colloids. (3)Influence of organic substances on solubility. Solubility of Th was measured under the condition with humic acid and carbonate. It increased roughly in proportion to the concentration of humic acid. And it was remarkably high under the condition with carbonate. It was confirmed that Th solubility data set in H12 report was conservative, even though humic acid existed in groundwater. (4)Use of Mechanistic Models for Safety Assessment. The integrated sorption/diffusion model has been used to calculate K$$_{d}$$, D$$_{a}$$ and D$$_{e}$$ values ...

JAEA Reports

None

Fusaeda, Shigeki*

JNC-TJ1400 99-022, 19 Pages, 1999/02

JNC-TJ1400-99-022.pdf:1.15MB

no abstracts in English

JAEA Reports

None

Fusaeda, Shigeki*

JNC-TJ1400 99-021, 86 Pages, 1999/02

JNC-TJ1400-99-021.pdf:9.09MB

no abstracts in English

JAEA Reports

None

Kawamura, Hideki*; Tanaka, Tatsuya*

PNC-TJ1201 98-001, 95 Pages, 1998/03

PNC-TJ1201-98-001.pdf:2.78MB

None

JAEA Reports

None

Fusaeda, Shigeki*; Yanagisawa, Ichiro*; Kataoka, Shinichi*; Shimada, Takashi*; *; *; *

PNC-TJ1216 98-007, 46 Pages, 1998/02

PNC-TJ1216-98-007.pdf:1.59MB

None

JAEA Reports

None

Fusaeda, Shigeki*; Yanagisawa, Ichiro*; Kataoka, Shinichi*; Shimada, Takashi*; *; *; *

PNC-TJ1216 98-006, 673 Pages, 1998/02

PNC-TJ1216-98-006.pdf:17.22MB

None

Journal Articles

Instrumentation and control systems of JRR-3M

; Murayama, Yoji; Takayanagi, Masaji; Ara, Katsuyuki

IAEA-TECDOC-973, 0, p.113 - 120, 1997/10

no abstracts in English

JAEA Reports

None

*; Fusaeda, Shigeki*; Kataoka, Shinichi*; Nemoto, Kazuhiko*; Yanagisawa, Ichiro*; Fukui, Hiroshi*; *

PNC-TJ1216 97-007, 69 Pages, 1997/03

PNC-TJ1216-97-007.pdf:3.09MB

None

JAEA Reports

None

*; *; Kataoka, Shinichi*; Nemoto, Kazuhiko*; Yanagisawa, Ichiro*; Fukui, Hiroshi*; *

PNC-TJ1216 97-006, 202 Pages, 1997/03

PNC-TJ1216-97-006.pdf:10.71MB

None

JAEA Reports

None

PNC-TJ8164 96-010, 213 Pages, 1996/03

PNC-TJ8164-96-010.pdf:7.67MB

no abstracts in English

JAEA Reports

None

*; *; *; *; Kakuta, Akio*

PNC-TJ8164 95-003, 72 Pages, 1995/03

PNC-TJ8164-95-003.pdf:2.31MB

no abstracts in English

JAEA Reports

None

Mikami, Satoshi; ; Momose, Takumaro

PNC-TN8410 95-319, 60 Pages, 1995/01

PNC-TN8410-95-319.pdf:0.99MB

None

JAEA Reports

None

; ; ; ;

PNC-TN8410 94-292, 38 Pages, 1994/10

PNC-TN8410-94-292.pdf:0.97MB

None

52 (Records 1-20 displayed on this page)