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Journal Articles

Impressions of the 3rd Joint Meeting of Japanese Society of Radiation Safety Management and Japan Health Physics Society

Watanabe, Yuki; Tsuji, Tomoya; Hirota, Seiko*; Hokama, Tomonori; Nakajima, Junya; Tsujiguchi, Takakiyo*; Kimura, Tatsuki*; Koike, Hiromi*; Nakamura, Kaori*; Kuwata, Haruka*; et al.

Hoken Butsuri (Internet), 57(1), p.54 - 64, 2022/03

no abstracts in English

Journal Articles

Joint meeting of young researchers in the field of radiation protection and radiation biology

Kataoka, Noriaki*; Nakajima, Junya; Miwa, Kazuji; Hirota, Seiko*; Tsubota, Yoichi; Yamada, Ryohei; Fujimichi, Yuki*; Ishikawa, Junya*; Sunaoshi, Masaaki*

Hoken Butsuri (Internet), 54(2), p.140 - 145, 2019/06

It is the written report of the joint meeting of young researchers in the field of radiation protection and radiation biology.

Journal Articles

Degradation of hydroxymaleimide in 2-propanol by irradiation of energetic heavy ions, 2; N$$_{2}$$-saturated system

Nakagawa, Seiko*; Taguchi, Mitsumasa; Hirota, Koichi; Murakami, Takeshi*

Radiation Physics and Chemistry, 79(8), p.890 - 893, 2010/08

 Times Cited Count:3 Percentile:25.67(Chemistry, Physical)

Hydroxymaleimide was irradiated in N$$_{2}$$-saturated 2-propanol solutions by high-energy heavy ions over a wide range of LET values. The differential G-values of the degradation of hydroxymaleimide by irradiation with the heavier ions were lower than those of the lighter ions for the same LET value. It was opposite result obtained in the air-saturated system. The degradation efficiency was 1.5 times higher, when the dose rate was 1/10 times lower. When irradiated at an LET value lower than 8 eV/nm, the G-values converged to a value less than that obtained by $$gamma$$-irradiation.

Journal Articles

Degradation of hydroxymaleimide in 2-propanol by irradiation of energetic heavy ions, 1; Air-saturated system

Nakagawa, Seiko*; Taguchi, Mitsumasa; Ota, Nobuaki*; Hirota, Koichi

Radiation Physics and Chemistry, 77(10-12), p.1230 - 1232, 2008/10

 Times Cited Count:4 Percentile:31.14(Chemistry, Physical)

Hydroxymaleimide was irradiated in air-saturated 2-propanol solution by high-energy heavy ions. The differential ${it G}$-values of the degradation of hydroxymaleimide was smaller than the ${it G}$-value obtained by $$gamma$$-irradiation, and decreased with increasing LET value for the same kind of ions. The fitting curve of the differential ${it G}$-values obtained for He ion is shifted from that for heavier ions. The irradiation effects of the kind and LET value of ions were observed on the degradation of hydroxymaleimide.

Journal Articles

LET effect on irradiation of hydroxymaleimide in alcohol solution

Nakagawa, Seiko*; Ota, Nobuaki*; Taguchi, Mitsumasa; Hirota, Koichi

JAEA-Review 2007-060, JAEA Takasaki Annual Report 2006, P. 159, 2008/03

no abstracts in English

Oral presentation

Degradation of hydroxymaleimide in 2-propanol by irradiation of $$gamma$$-ray and energetic heavy ions

Nakagawa, Seiko*; Taguchi, Mitsumasa; Ota, Nobuaki*; Hirota, Koichi

no journal, , 

no abstracts in English

Oral presentation

LET effect on radiation of hydroxymaleimide in 2-propanol, 2

Nakagawa, Seiko*; Ota, Nobuaki*; Hirota, Koichi; Taguchi, Mitsumasa

no journal, , 

no abstracts in English

Oral presentation

Degradation of hydroxymaleimide in N$$_{2}$$-saturated 2-propanol by irradiation of energetic ions

Nakagawa, Seiko*; Taguchi, Mitsumasa; Ota, Nobuaki*; Hirota, Koichi

no journal, , 

no abstracts in English

Oral presentation

LET effect on irradiation of hydroxymaleimide in N2-saturated 2-propanol

Nakagawa, Seiko*; Ota, Nobuaki*; Taguchi, Mitsumasa; Hirota, Koichi

no journal, , 

no abstracts in English

Oral presentation

LET effect on degradation of hydroxymaleimide in nitrogen-saturated 2-propanol, 2

Nakagawa, Seiko*; Taguchi, Mitsumasa; Hirota, Koichi

no journal, , 

no abstracts in English

Oral presentation

Preparation of national standard human tooth enamel; Comparison of dosimetric signal formation efficiency

Todaka, Azumi*; Toyoda, Shin*; Tachi, Momoko*; Shimazaki, Tatsuya*; Oka, Toshitaka; Yamaguchi, Ichiro*; Inoue, Kazuhiko*; Yasuda, Hiroshi*; Hirota, Seiko*; Tani, Atsushi*; et al.

no journal, , 

To estimate the external exposure dose using electron spin resonance technique, we use a "standard sample" which were prepared at each laboratory with each preparation protocol. It is necessary to unite the preparation protocol for the "real" standard sample. In the point of view of the enamel extraction method, no difference was observed for five dose responses between the absorbed dose and the CO$$_2$$ radical intensity.

Oral presentation

Working Group Session "IRPA Practical Guidance for Engagement with the Public on Radiation and Risk"

Yoshida, Hiroko*; Nomura, Naoki*; Kono, Takahiko; Sakoda, Akihiro; Kuroda, Yujiro*; Naito, Wataru*; Hirota, Seiko*; Kudo, Shinichi*; Etani, Reo*; Chikamoto, Kazuhiko*; et al.

no journal, , 

This working group has been translating into Japanese the publication "Practical Guidance for Engagement with the Public on Radiation and Risk" by IRPA in 2020. This publication was made with the theme of public understanding, which was one of key issues that the consultation by IRPA to its member societies identified as most necessary in the radiation protection system. The translated guidance is supposed to be distributed to radiation protection experts and relevant communities in Japan who may be interested in public understanding. The purpose of this symposium is to share the working progress and important points of the guidance.

Oral presentation

Activity report from IRPA Practical Guidance for Engagement with the Public on Radiation and Risk Working Group

Yoshida, Hiroko*; Nomura, Naoki*; Kono, Takahiko; Sakoda, Akihiro; Kuroda, Yujiro*; Naito, Wataru*; Hirota, Seiko*; Kudo, Shinichi*; Takahara, Shogo; Etani, Reo*; et al.

no journal, , 

The WG has translated the "Practical Guidance for Engagement with the Public on Radiation and Risk" ("IRPA Guidance") issued by the International Radiation Protection Association ("IRPA") to its member societies in 2020. "Practical Guidance for Engagement with the Public on Radiation and Risk" (hereinafter referred to as "IRPA Guidance") published by the International Radiological Protection Association (hereinafter referred to as "IRPA") in 2020 for its member societies, and to provide the information to radiation protection experts and other interested.

Oral presentation

Planning session from IRPA Practical Guidance for Engagement with the Public on Radiation and Risk Working Group

Yoshida, Hiroko*; Nomura, Naoki*; Kono, Takahiko; Sakoda, Akihiro; Kuroda, Yujiro*; Naito, Wataru*; Hirota, Seiko*; Kudo, Shinichi*; Kawaguchi, Isao*; Etani, Reo*; et al.

no journal, , 

The WG has translated the "Practical Guidance for Engagement with the Public on Radiation and Risk" ("IRPA Guidance") issued by the International Radiation Protection Association ("IRPA") to its member societies in 2020. "The content of the IRPA guidance was presented at a symposium organized by the Health Physics Society of Japan in June 2020. The content of the IRPA guidance was presented at the Health Physics Society planning symposium held in June 2020, where many experts attended and provided feedback. In this planning session, we will focus on public engagement and related specific examples and situations related to public engagement.

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