Estimation of children's thyroid equivalent doses in 16 municipalities after the Fukushima Daiichi Nuclear Power Station accident

Suzuki, Gen*; Ishikawa, Tetsuo*; Oba, Takashi*; Hasegawa, Arifumi*; Nagai, Haruyasu; Miyatake, Hirokazu*; Yoshizawa, Nobuaki*

Journal of Radiation Research (Internet), 63(6), p.796 - 804, 2022/11

https://doi.org/10.1093/jrr/rrac058

To elucidate the association between radiation dose and thyroid cancer after the 2011 Fukushima Daiichi Nuclear Power Station (FDNPS) accident, it is essential to estimate individual thyroid equivalent doses (TEDs) to children. In a previous study, we reported a methodology for reconstructing TEDs from inhalation based on individual behavioural survey sheets combined with a spatiotemporal radionuclides database constructed by an atmospheric transport, diffusion, and deposition model (ATDM). In the present study, we further refined our methodology and estimated the combined TEDs from inhalation and ingestion among children in 16 municipalities around the nuclear power station utilizing 3,256 individual whereabouts questionnaire survey sheets. Distributions of estimated TEDs were similar to estimates based on direct thyroid measurements in 1080 children in Iwaki City, Kawamata Town, Iitate Village, and Minamisoma City. Mean TEDs in 1-year-old children ranged from 1.3 mSv in Date City to 14.9 mSv in Odaka Ward in Minamisoma City, and the 95th percentiles varied from 2.3 mSv in Date City to 28.8 mSv in Namie Town. In the future, this methodology can be useful for a case-control study of thyroid cancer after the FDNPS accident.

Evaluation of dose conversion coefficients for high-energy radiation in Japan after SATIF-4

Sakamoto, Yukio; Tsuda, Shuichi; Sato, Osamu*; Yoshizawa, Nobuaki*

Proceedings of 5th Specialists' Meeting on Shielding Aspects of Accelerators, Targets and Irradiation Facilities (SATIF-5), p.313 - 324, 2000/00

no abstracts in English

An Upgraded version of the nucleon meson transport code: NMTC/JAERI97

Takada, Hiroshi; Yoshizawa, Nobuaki*; Kosako, Kazuaki*; *

JAERI-Data/Code 98-005, 101 Pages, 1998/02

JAERI-Data-Code-98-005.pdf:3.57MB

no abstracts in English

Reaction rate distribution measurement and analysis for 0.895 and 1.21GeV proton bombardment on thick tungsten target

Takada, Hiroshi; Meigo, Shinichiro; Sasa, Toshinobu; Fukahori, Tokio; Sakamoto, Yukio; Yoshizawa, Nobuaki*; Furihata, Shiori*; V.I.Belyakov-Bodin*; G.I.Krupny*

Proc. of 3rd Workshop on Simulating Accelerator Radiation Environments (SARE3), p.255 - 263, 1997/00

no abstracts in English

HETC-3STEP calculations of proton induced nuclide production cross sections at incident energies between 20 MeV and 5 GeV

Takada, Hiroshi; Yoshizawa, Nobuaki*; *

JAERI-Research 96-040, 91 Pages, 1996/08

JAERI-Research-96-040.pdf:2.2MB

no abstracts in English

Basic physical data needed for dose evaluation

Sakamoto, Yukio; Tanaka, Shunichi; ; W.Pairsuwan*; Yoshizawa, Nobuaki*; *; Furihata, Shiori*; Uehara, Takashi*; Iwai, Satoshi*

JAERI-Conf 95-007, 0, p.48 - 56, 1995/03

https://jopss.jaea.go.jp/pdfdata/JAERI-Conf-95-007.pdf

no abstracts in English

Microscopic cross section calculations with NUCLEUS and HETC-3STEP

Takada, Hiroshi; Nakahara, Yasuaki; ; *; Yoshizawa, Nobuaki*

Proc. of NEA/NSC Specialists Meeting on Intermediate Energy Nuclear Data:Models and Codes, 0, p.121 - 136, 1994/00

no abstracts in English

Investigation of uncertainties in estimating thyroid equivalent dose from body surface contamination measurements

Oba, Takashi*; Ishikawa, Tetsuo*; Miyatake, Hirokazu*; Nagai, Haruyasu; Hasegawa, Arifumi*; Yoshizawa, Nobuaki*; Suzuki, Gen*

no journal, , 

no abstracts in English

Estimation of internal exposure doses from tap water intake after Fukushima Daiichi Nuclear Power Station accident and its uncertainty

Miyatake, Hirokazu*; Yoshizawa, Nobuaki*; Suzuki, Gen*; Nagai, Haruyasu; Oba, Takashi*; Hasegawa, Arifumi*; Ishikawa, Tetsuo*; Regalado, Mariko*

no journal, , 

no abstracts in English