Sodium-cooled Fast Reactors

Ohshima, Hiroyuki; Morishita, Masaki*; Aizawa, Kosuke; Ando, Masanori; Ashida, Takashi; Chikazawa, Yoshitaka; Doda, Norihiro; Enuma, Yasuhiro; Ezure, Toshiki; Fukano, Yoshitaka; et al.

Sodium-cooled Fast Reactors; JSME Series in Thermal and Nuclear Power Generation, Vol.3, 631 Pages, 2022/07

https://shop.elsevier.com/books/sodium-cooled-fast-reactors/morishita/978-0-12-824076-2

This book is a collection of the past experience of design, construction, and operation of two reactors, the latest knowledge and technology for SFR designs, and the future prospects of SFR development in Japan. It is intended to provide the perspective and the relevant knowledge to enable readers to become more familiar with SFR technology.

Fine dispersion of Pt subnanoclusters and Pt single atoms over porous carbon supports and their structural analyses with X-ray absorption spectroscopy

Itoi, Hiroyuki*; Nishihara, Hirotomo*; Kobayashi, Shunsuke*; Ittisanronnachai, S.*; Ishii, Takafumi*; Berenguer, R.*; Ito, Masashi*; Matsumura, Daiju; Kyotani, Takashi*

Journal of Physical Chemistry C, 121(14), p.7892 - 7902, 2017/04

https://doi.org/10.1021/acs.jpcc.7b00422

The Upper pliocene diatom zone and fission-track age of the upper Koetoi Formation around the Sarobetsu anticline, northern Hokkaido

Yasue, Kenichi; Akiba, Fumio*; Ohira, Hiroto*; Ishii, Eiichi

Chishitsugaku Zasshi, 112(4), p.284 - 293, 2006/04

https://doi.org/10.5575/geosoc.112.284

The Upper Pliocene Neodenticula koizumii Zone was recognized near the boundary between the Koetoi and Yuchi Formations in the western part of the Horonobe area, northern Hokkaido. In previous studies, numerous reworked fossil diatoms from underlying strata have obscured the recognition of the zone. However, this study samples include commonly both N. seminae and N. koizumii as probable autochthonous diatoms and almost no reworked fossil diatoms. Therefore, the samples belong obviously to the Neodenticula koizumii Zone. In addition, fission track ages of zircon crystals from a tuff between the diatom samples show 2.20.1 Ma and 2.30.1 Ma (2.50.1 Ma:). The diatoms and FT age data indicate that the depositional age around the boundary between the Koetoi and Yuchi Formations in the study area is 2.1-2.4 Ma. The age is younger than that in the eastern part of the Horonobe area for about one million years, which is concordant with the previously suggested westward migration of the Tenpoku Basin after Pliocene.

Synthesis and characterization of CeO-based simulated fuel containing CsI

Takamatsu, Yuki*; Kurosaki, Ken*; Ishii, Hiroto*; Oishi, Yuji*; Muta, Hiroaki*; Yamanaka, Shinsuke*; Nakajima, Kunihisa; Suzuki, Eriko; Miwa, Shuhei; Osaka, Masahiko

no journal, , 

We performed spark plasma sintering tests of the cerium dioxide (CeO)-based simulated fuel containing cesium iodide (CsI), in order to establish a synthesis technology of simulated fuel including volatile fission product (FP) such as cesium (Cs) and iodine (I) for a study on the FP release behavior. We could successfully fabricated the simulated fuel containing CsI by the spark plasma sintering at lower temperature and in shorter time. It has homogeneous distribution of CsI compound in the sintered pellet.