JOPSS - Search Results

This investigation was conducted as a part of planning the low-level radioactive waste management program (LLW management program). The aim of this investigation was contributed to compile the radioactive waste database of JNC's LLW management program. All nuclear facilities of the Tokai works and Ningyo-toge Environmental Engineering Center were investigated in this work. The wastes generated by the decomissioning of each nuclear facility were classified into radioactive waste and others (exempt waste and non-radioactive waste), and the amount of the wastes was estimated. The estimated amounts of radioactive wastes generated by decomissioning of the nuclear facilities are as follows. (1)Tokai works. The amount of waste generated by decommissioning of nuclear facilities of the Tokai works is about 1,079,100 ton. The amount of radioactive waste is about 15,400 ton. The amount of exempt waste and non-radioactive waste is about 1,063,700 ton. (2)Ningyo-toge Environmental Engineering Center. The amount of waste generated by decommissioning of nuclear facilities of Ningyo-toge Environmental Engineering Center is about 112,500 ton. The amount of radioactive waste is about 7,800 ton. The amount of exempt waste and non-radioactive waste is about 104,700 ton.

JAEA Reports

Basic data for integrated assessment of nuclear fuel cycle system

Nomura, Yasushi; Tamaki, Hitoshi; Ito, Chihiro*; Saegusa, Toshiari*

JAERI-Data/Code 2001-012, 118 Pages, 2001/03

JAERI-Data-Code-2001-012.pdf:5.71MB

no abstracts in English

JAEA Reports

None

; *; *

JNC TN8200 2001-001, 42 Pages, 2001/01

JNC-TN8200-2001-001.pdf:3.16MB

None

JAEA Reports

None

JNC TN1400 2001-002, 172 Pages, 2001/01

JNC-TN1400-2001-002.pdf:6.28MB

no abstracts in English

Journal Articles

Analysis of nature of production system and process related with the JCO criticality accident

Tanabe, Fumiya; Yamaguchi, Yukichi

Nihon Genshiryoku Gakkai-Shi, 43(1), p.48 - 51, 2001/01

https://doi.org/10.3327/jaesj.43.48

Times Cited Count：5 Percentile：38.97(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Analysis of actual work process related with the JCO criticality accident

Tanabe, Fumiya; Yamaguchi, Yukichi

Nihon Genshiryoku Gakkai-Shi, 43(1), p.52 - 55, 2001/01

https://doi.org/10.3327/jaesj.43.52

Times Cited Count：1 Percentile：12.01(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Analysis of causes of criticality accidents at nuclear fuel processing facilities in foreign countries; Similarities to the criticality accident at JCO's uranium processing plant

Watanabe, Norio

Nihon Genshiryoku Gakkai-Shi, 42(11), p.1204 - 1214, 2000/11

https://doi.org/10.3327/jaesj.42.1204

Times Cited Count：0 Percentile：0.01(Nuclear Science & Technology)

no abstracts in English

JAEA Reports

None

JNC TN1400 2000-010, 70 Pages, 2000/10

JNC-TN1400-2000-010.pdf:2.87MB

no abstracts in English

JAEA Reports

Review and compilation of criticality accidents in nuclear fuel processing facilities outside of Japan

Watanabe, Norio; Tamaki, Hitoshi

JAERI-Review 2000-006, p.56 - 0, 2000/04

JAERI-Review-2000-006.pdf:3.78MB

no abstracts in English

JAEA Reports

Demonstration study on shielding safety analysis code (VII)

Sawamura, Sadashi*

JNC TJ8400 2000-053, 41 Pages, 2000/02

JNC-TJ8400-2000-053.pdf:1.6MB

Dose evaluation for direct radiation and skyshine from nuclear fuel facilities is one of the environment evaluation items. This evaluation is carried out by using some shielding calculation codes. Because of extremely few benchmark data of skyshine, the calculation has to be performed very conservatively. Therefore, the benchmark data of skyshine and the well-investigated code for skyshine would be necessary to carry out the rational evaluation of nuclear facilities. The purpose of this study is to obtain the benchmark data of skyshine and to investigate the calculation code for skyshine. In this fiscal year, the followings are investigated; (1)To improve the detection sensitivity of pulsed neutron measurement, two neutron detectors and some electronic circuits are added to the system constructed last year. (2)To estimate the neutron dose at the distant point from the facility instead of the commercialized rem-counter, a $^{3}$ He detector with paraffin moderator is equipped to the system. (3)Using the new detection system, the skyshine of neutrons from 45Mev LINAC facility was measured in the distance up to 300m. The results show that the time structure of pulsed neutrons almost disappears at the further points than 150m. (4)In the distance from 90m to 300m ordinal total counting method without gate pulse are applied to detect the neutrons. (5)The experimental results of space dependency up to 300m is fitted fairly well by the Gui's response function.