Feasibility Study on Production of High-Purity Rhenium-185 by Nuclear Transmutation of Natural Tantalum

Autor: Yuki Tanoue, Tsugio Yokoyama, Masaki Ozawa

Publikováno v: Journal of Nuclear Engineering, Vol 4, Iss 3, Pp 625-633 (2023)

Rhenium-186 (Re-186) has attracted attention as a medical isotope. The feasibility of producing Re-185, the raw material for Re-186, using a fast reactor was evaluated using a continuous energy Monte Carlo code. The irradiation of natural tantalum (T

Externí odkaz: https://doaj.org/article/258371006f944153abbb564e91de7713

Flexible tuning of the peak wavelength and intensity of localized surface plasmon resonance by heat treatment of nanodisk structures fabricated by electron beam lithography

Autor: Noboru Osaka, Masaki Ozawa, Tetsuya Matsuyama, Kenji Wada, Koichi Okamoto

Publikováno v: Optical Materials Express. 13:1504

We demonstrate that the plasmonic properties of Au nanodisk structures fabricated by an electron beam lithography can be improved by very simple heat treatments, and that the resonance wavelength can be tuned by temperature. With a Ni adhesion layer,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9bca47badb2208a03460b388bb34163
https://doi.org/10.1364/ome.486516

A Generalized Structural Equation Model Approach to Long Working Hours and Near-Misses among Healthcare Professionals in Japan

Autor: Masaki Ozawa, Takashi Yamauchi, Tatsuhiko Anzai, Kunihiko Takahashi

Publikováno v: International Journal of Environmental Research and Public Health
Volume 18
Issue 13
International Journal of Environmental Research and Public Health, Vol 18, Iss 7154, p 7154 (2021)

(1) Background: Near-miss incidents are the foundation of major injuries. They are warning signs that loss is imminent. Long working hours are a risk factor for near-misses along with sleep problems, job-related stress, and depressive symptoms. This

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c03def7f1f627ec5133cd3b213a9f83
https://pubmed.ncbi.nlm.nih.gov/34281091

Separation and recovery of palladium from nitric acid solution by silica based benzo-15-crown-5 ether resin

Autor: Masaki Ozawa, Toshitaka Kaneshiki, Atsunori Terashima, Masao Nomura

Publikováno v: Energy Procedia. 131:163-169

The Apres ORIENT research program, as a newly concept of advanced nuclear fuel cycle, was initiated in FY2011 aiming at creating stable, highly-valuable elements by nuclear transmutation from fission products (FPs). As creation of palladium (Pd) from

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3ab47a62d899f634716b8cb27a9fa5c
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100815697

Production of Rhenium by Transmuting Tungsten Metal in Fast Reactors with Moderator

Autor: Tsugio Yokoyama, Atsunori Terashima, Masaki Ozawa, Yuki Tanoue

Publikováno v: Jounal of Energy and Power Engineering. 10(Number 3):159-165

The feasibility of rhenium (Re) production by irradiating tungsten (W) metal in a medium size fast reactor was evaluated by using a Monte Carlo code. The fast reactor can produce about 50 kilograms of Re per every 3 years, which corresponds 10% of Ja

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23a26f0261ddb9b9c39a28605556d13b
http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100704111