Conversion of JRR-4 fuel to LEU

Watanabe, Shukichi; Nakajima, Teruo; Kaieda, Keisuke

JAERI-Conf 99-006, p.119 - 124, 1999/08

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-99-006.pdf

no abstracts in English

Status of JRR-4 modification works

Nakajima, Teruo; Bamba, Masao; ; ; Horiguchi, Yoji; Kaieda, Keisuke

Proc. of 6th Meeting of the Int. Group on Research Reactors, p.51 - 56, 1998/00

no abstracts in English

Basic experiments of reactor physics using the research reactor JRR-4 and NSRR

Obara, Toru*; Horiki, Oichiro*; Nakajima, Teruo; Watanabe, Shukichi; Ishijima, Kiyomi; Katanishi, Shoji

JAERI-Review 95-010, 39 Pages, 1995/06

JAERI-Review-95-010.pdf:1.14MB

no abstracts in English

JENDL-3 fission product nuclear data library

Kawai, Masayoshi*; Iijima, Shungo*; Nakagawa, Tsuneo; Nakajima, Yutaka; Sugi, Teruo; Watanabe, Takashi*; Matsunobu, Hiroyuki*; ;

Journal of Nuclear Science and Technology, 29(3), p.195 - 213, 1992/03

https://doi.org/10.3327/jnst.29.195

no abstracts in English

Development of advanced vitrification melter; Examination on the discharge of particulate in vitrified waste

Morikawa, Yo; Yamashita, Teruo; Nakajima, Masayoshi; Nakazaki, Katsutoshi; Sasage, Kenichi

no journal, , 

no abstracts in English

Development of long-life vitrification melter, 14; Evaluation of temperature distribution by the small scale test melter

Yamashita, Teruo; Masaki, Toshio; Nakajima, Masayoshi; Shiotsuki, Masao; Kojima, Keizo; Toyoshima, Mikihiro; Matsumoto, Shiro*

no journal, , 

no abstracts in English

Development of simulation system for vitrification melter, 2; Evaluation on physical behavior of the TVF melter during ordinary operation

Miura, Akihiko; Nakajima, Masayoshi; Yamashita, Teruo; Sakai, Takaaki; Shiotsuki, Masao; Sato, Akihiro*; Kawahara, Hitoshi*

no journal, , 

no abstracts in English

Development of long-life vitrification melter, 11; Influence of suspended particle on viscosity of molten glass

Sasage, Kenichi; Nakajima, Masayoshi; Yamashita, Teruo; Shiotsuki, Masao; Matsumoto, Shiro*

no journal, , 

no abstracts in English

Study on the sedimentation behavior of the noble metal particles in molten borosilicate glass

Oyama, Koichi; Morikawa, Yo; Miyauchi, Atsushi; Nakajima, Masayoshi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

no abstracts in English

Sedimentation behavior of noble metal particles in simulated high-level waste borosilicate glasses

Nakajima, Masayoshi; Oyama, Koichi; Morikawa, Yo; Miyauchi, Atsushi; Yamashita, Teruo; Komamine, Satoshi*; Ochi, Eiji*

no journal, , 

Noble metal elements (NME) contained in high level liquid waste (HLLW) are distributed in a vitrification melter. Some part of them forms sediment which causes negative effects to steady operation of the melter. The formation process and characteristics of the sediment is useful information for considering methods of removing or discharging them. Thus the sedimentation observation was carried out by using simulated glass. Samples with 1.1wt% of initial NME concentration held at 1100C indicated zone settling, and the settling rate of interface is constant; 2.4 mm/h. This sedimentation behavior is the type of rapid settling. Following the rapid settling, the settling rate goes slower gradually, this is the type of compressive settling. The samples whose initial NME concentrations are 3.0wt% and 6.1wt% showed compression settling form the beginning. From the settling curve of interface, the maximum concentration of NME in sediment was estimated as around 23-26wt%. This value can specify the properties of sediment to be removed, Also, growth of NME particles was observed by holding at 1100C for up to 2880 hours.