The Selection of the cutting technologies for dismantling the FUGEN reactor

Nakamura, Yasuyuki; Iwai, Hiroki; Mizui, Hiroyuki; Sano, Kazuya

JAEA-Technology 2015-045, 137 Pages, 2016/03

JAEA-Technology-2015-045.pdf:27.77MB

FUGEN is 9 m outer-diameter and 7m height, and characterized by its tube-cluster construction that contains 224 fuel channels arranging both the pressure and the calandria tubes coaxially in each channel. And the periphery part of the core has the laminated structure composed of up to 150 mm thickness of carbon steel for radiation shielding. The structure of the reactor, which is made of various materials such as stainless steel, carbon steel, zirconium alloy and aluminum. The reactor is planning to be dismantled under water in order to shield the radiation ray around the core and prevent airborne dust generated by the cutting, the temporary pool structure and the remote-operated dismantling machines needs to be installed on the top of reactor. In consideration of above the structure of Fugen reactor, the cutting method was selected for dismantling the reactor core in order to shorten the dismantling term and reduce the secondary waste.

Development of project management data calculation models relating to dismantling of nuclear facilities (Contract research)

Sukegawa, Takenori; Oshima, Soichiro; ; Yanagihara, Satoshi

JAERI-Data/Code 99-005, 65 Pages, 1999/02

JAERI-Data-Code-99-005.pdf:3.5MB

no abstracts in English

Characteristics of generated aerosols and estimation of air contamination in decommissioning of the Japan Power Demonstration Reactor

;

IRPA9: 1996 International Congress on Radiation Protection, Proceedings, 3, p.350 - 352, 1996/00

no abstracts in English

Dismantling of the EBWR's activated components

RANDEC Nyusu, 0(27), p.6 - 7, 1995/10

no abstracts in English

Countermeasure of decommissioning wastes; Review of reuse and recycle

Miyasaka, Yasuhiko

Enerugi Rebyu, 15(9), p.24 - 28, 1995/00

no abstracts in English

Dismantling of reactor; For safety retirement

*; Yanagihara, Satoshi; Kozaki, Tamotsu*; Tachibana, Mitsuo

Genshiro Kaitai; Anzen Na Taieki No Tameni, 341 Pages, 1993/04

no abstracts in English

Accuracy verification for calculation of inventory in JPDR due to neutron activation

Sukegawa, Takenori; Sasamoto, Nobuo; Fujiki, Kazuo

INDC(JPN)-164, 38 Pages, 1993/03

no abstracts in English

The Niederaichbach Nuclear Power Plant decommissioning program

RANDEC Nyusu, 0(13), p.5 - 7, 1992/05

no abstracts in English

Development of telerobotic systems for reactor decommissioning, III; Demonstration system

Usui, Hozumi; Fujii, Yoshio; Shinohara, Yoshikuni

Journal of Nuclear Science and Technology, 28(8), p.767 - 776, 1991/08

https://doi.org/10.3327/jnst.28.767

no abstracts in English

Development of telerobotic systems for reactor decommissioning, I; Prototype light-duty system

Shinohara, Yoshikuni; Usui, Hozumi; Fujii, Yoshio

Journal of Nuclear Science and Technology, 28(6), p.547 - 554, 1991/06

https://doi.org/10.3327/jnst.28.547

no abstracts in English