Oral presentation

[1J01-10] Dose Management

Wed. Sep 6, 2023 2:45 PM - 5:25 PM Room J (ES Bildg. 2F ES025)

Chair:Jun Hirouchi(JAEA)

2:45 PM - 3:00 PM

[1J01] Management of worker dose exposure associated with decontamination work

(1) Development of a traceability system for worker dose exposure

*Masanori Tokiyoshi¹, Kyohei Nishiyama¹, Daisuke Tanaka², Haruo Nagamine¹, Jyunichi Hagiwara¹ (1. TAISEI, 2. Infocube LAFLA)

3:00 PM - 3:15 PM

[1J02] Management of worker dose exposure associated with decontamination work

(2) Characteristics of smartphone-connected personal dosemeter

*Satoshi MIKAMI¹, Rina Sato², Masanori Tokiyoshi³, Daisuke Tanaka⁴, Kazuya Yoshimura¹ (1. JAEA, 2. Hitachi Solutions East Japan, 3. TAISEI, 4. Infocube LAFLA)

3:15 PM - 3:30 PM

[1J03] Management of worker dose exposure associated with decontamination work

(3) Experience in worker’s dose exposure control

*Tomohisa Abe¹, Yukihisa Sanada¹, Masanori Tokiyoshi², Kyohei Nishiyama², Rina Sato³, Kazuya Yoshimura¹, Hironori Funaki¹, Mutsushi Ishida⁴, Haruo Nagamine², Motoyuki Fujisaka² (1. JAEA, 2. TAISEI, 3. Hitachi Solutions East Japan, 4. NESI)

3:30 PM - 3:45 PM

[1J04] On Evaluation of Radiation Influence at Municipal Waste Disposal Sites in Fukushima Prefecture

*Kazuyuki Takase¹, Kazuaki Kusakabe¹, Kouki Kokubun¹ (1. Fukushima Prefectural Centre for Environmental Creation)

3:45 PM - 4:00 PM

[1J05] Impact of a gas-to-particle conversion process on 131I atmospheric dispersion during the FDNPP accident

*Masanao Kadowaki¹, Hiroaki Terada¹ (1. JAEA)

4:00 PM - 4:15 PM

[1J06] Internal exposure organ dose rate conversion coefficients for Japanese monkeys to ¹³⁴Cs, ¹³⁷Cs, ¹²⁹I, and ¹³¹I

*Yuta Takamura¹, Tsuyoshi Kajimoto¹, Masatoshi Suzuki², Manabu Fukumoto^3,2, Tanaka Kenichi⁴, Satoru Endo¹ (1. Hiroshima Univ. , 2. Tohoku Univ., 3. RIKEN, 4. Kyoto Pharmaceutical Univ.)

4:15 PM - 4:30 PM

[1J07] Evaluation of Dose Reduction Effects in Gymnasiums

*Naho Hayashi¹, Azusa Nagakubo¹, Shogo Takahara¹ (1. JAEA)

4:30 PM - 4:45 PM

[1J08] Anthropogenic impacts on temporal decrease in air dose rate in urban areas

(1) Series overview and environmental restoration trends obtained from field observations

*Kazuya Yoshimura¹, Tomohisa Abe¹ (1. Japan Atomic Energy Agency)

4:45 PM - 5:00 PM

[1J09] Anthropogenic impacts on temporal decrease in air dose rate in urban areas

(2) Simulation analysis using detailed environmental model by 3D-ADRES

*Minsik Kim¹, Kazuya Yoshimura¹, Kazuyuki Sakuma¹, Alex Malins², Tomohisa Abe¹, Shigeo Nakama¹, Masahiko Machida¹, Kimiaki Saito¹ (1. JAEA, 2. KRAKEN TECHNOLOGIES)

5:00 PM - 5:15 PM

[1J10] Anthropogenic impacts on temporal decrease in air dose rate in urban areas

(3) Correlation between population dynamics and ecological half-life decay estimated by using LASSO

*Masahiko Machida¹, Uno Shumpei², Naoki Tanimura², Kimiaki Saito¹, Kazuya Yoshimura¹ (1. Japan Atomic Energy Agency, 2. Mizuho Research & Technologies)

Time reserved for Chair （5:15 PM - 5:25 PM）

Oral presentation

[2J01-08] Dose Assessment

Thu. Sep 7, 2023 9:45 AM - 11:55 AM Room J (ES Bildg. 2F ES025)

Chair:Masahiko Machida(JAEA)

9:45 AM - 10:00 AM

[2J01] Study on dose estimation of PVA-KI gel dosimeter using RGB analysis method

*Takeyoshi Sunagawa¹, Glenn Harvel², Chisako Hishiki¹, Sachiko Yoshihashi³, Yutaro Aoki¹ (1. FUT, 2. Ontario Tech Univ., 3. Nagoya Univ.)

10:00 AM - 10:15 AM

[2J02] Development of aerial dosimetry system by the scintillator mounted on UAV

*Ryosuke Takamatsu¹, Takashi Jintoku¹, Naoe Kadota¹, Souji Otsuki², Masaji Takahashi², HIDEOMI ARAI³ (1. OBAYASHI, 2. MIRAIGIKEN, 3. KIKUCHISEISAKUSHO)

10:15 AM - 10:30 AM

[2J03] Radiation source distribution estimation by machine learning using gamma ray energy spectrum

*Yuka Kumada¹, Taiyo Sato¹, Yuto Kondo¹, Tsugiko Takase¹, Masaharu Matsumoto¹, Katsuhiko Yamaguchi¹ (1. Fukushima Univ.)

10:30 AM - 10:45 AM

[2J04] Development of estimation methods to improve the accuracy of Compton camera.

*Yoshiki Ohori¹, Takeo Torii¹, Tsugiko Takase¹, Katsuhiko Yamaguchi¹ (1. Fukushima univ.)

10:45 AM - 11:00 AM

[2J05] Study on optimization method for contamination inspection of vehicles in nuclear emergency

(2) Confirmation of the usefulness of the new set-up for portable radiation portal monitors for vehicles

*Kouhei Kawasaki¹, Hirokazu Hiraoka², Iwao Ezaki¹, Masanori Kimura², Orihiko Togawa², Shota Saito² (1. CTC, 2. JAEA)

11:00 AM - 11:15 AM

[2J06] Study on optimization method for contamination inspection of vehicles in nuclear emergency

(3) Verification of discriminative ability for contamination by the new set-up for portable radiation portal monitors for vehicles

*Hirokazu Hiraoka¹, Kouhei Kawasaki², Masanori Kimura¹, Orihiko Togawa¹, Saito Shota¹, Iwao Ezaki² (1. JAEA, 2. CTC)

11:15 AM - 11:30 AM

[2J07] Study on the effects of radon inhalation on proteins in mouse brain using proteome analysis and multivariate analysis

*Shota Naoe¹, Takahiro Kataoka², Ayumi Tanaka¹, Norie Kanzaki³, Akihiro Sakoda³, Takaaki Miyaji⁴, Kiyonori Yamaoka² (1. Graduate School of Health Sciences, Okayama University, 2. Faculty of Health Sciences, Okayama University, 3. Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency, 4. Advanced Science Research Center, Okayama University)

11:30 AM - 11:45 AM

[2J08] Improvement of dose rate measurement method and calculation analysis for MOX containing Americium

*Toyofumi Okada¹, Yuta Horii¹, Yoichi Tsubota¹, Akira Komeno¹, Hiroshi Kikuno¹ (1. JAEA)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[2J09-20] Environmental Radiation

Thu. Sep 7, 2023 2:45 PM - 5:55 PM Room J (ES Bildg. 2F ES025)

Chair:Takeyoshi Sunagawa(FUT)

2:45 PM - 3:00 PM

[2J09] Studies on ¹³⁷Cs fractions in archived soil samples collected from FDNPS in 2011

*Kento YANAGIGAWA¹, Takahiro TATSUNO², Hirofumi TSUKADA² (1. Graduate School of Symbiotic System Science and Technology, Fukushima Univ., 2. Institute of Environmental Radioactivity, Fukushima Univ.)

3:00 PM - 3:15 PM

[2J10] Measurement of the environmental radioactivity in Yamagata Prefecture in 2023

*Hiroki Asano¹, Emiko Inui², Mirei Takeyama³, Toru Moriya³, Takeshi Ito⁴, Hirohisa Sakurai², Fuyuki Tokanai^2,3 (1. Grad. Sch. Science and Engineering, Yamagata University, 2. Faculty of Science, Yamagata Univ., 3. Center for AMS, Yamagata Univ., 4. Water and Air Env Division, Env and Energy Department, Yamagata Pref.)

3:15 PM - 3:30 PM

[2J11] Analysis of microscopic molten particles possibly originating from the atomic bomb collected from Hiroshima City

*Shoki Yoshimura¹, Tamaki Matsumura¹, Masato Morita¹, Tesuo Sakamoto¹, Rina Yamawaki², Ryouka Akazi², Satoru Endo², Yasuhito Igarashi³ (1. Kogakuin Univ., 2. Hiroshima Univ., 3. Kyoto Univ.)

3:30 PM - 3:45 PM

[2J12] High time resolution observation of short-lived radon decay nuclides in rain water

*Hiromi Yamazawa¹, Yoshiki Takiguchi¹ (1. Nagoya Univ.)

3:45 PM - 4:00 PM

[2J13] 210Pb deposition distribution in the Northern Hemisphere based on numerical simulation

*YU CAI¹, Hiromi Yamazawa², Takeshi Iimoto¹ (1. The University of Tokyo, 2. Nagoya University)

4:00 PM - 4:15 PM

[2J14] Dose assessment for residents in the residential environment considering the transfer of substances between indoor and outdoor after nuclear accidents

(1) Overview of research project

*Shogo Takahara¹, Azusa Nagakubo¹, Jun Hirouchi¹, Naho Hayashi¹, Yasuto Matsui², Minoru Yoneda² (1. Japan Atomic Energy Agency, 2. Kyoto University)

4:15 PM - 4:30 PM

[2J15] Dose assessment for residents in the residential environment considering the transfer of substances between indoor and outdoor after nuclear accidents

(2) Penetration of materials resuspended outdoors

*Jun Hirouchi¹, Masatoshi Watanabe^2,1, Naho Hayashi¹, Azusa Nagakubo¹, Yasuto Matsui³, Minoru Yoneda³, Shogo Takahara¹ (1. JAEA, 2. V.I.C., 3. Kyoto Univ.)

4:30 PM - 4:45 PM

[2J16] Dose assessment for residents in the residential environment considering the transfer of substances between indoor and outdoor after nuclear accidents

(3) Resuspension of indoor deposited particles

*Azua Nagakubo¹, Naho Hayashi¹, Yasuto Matsui², Jun Hirouchi¹, Minoru Yoneda², Shogo Takahara¹ (1. JAEA, 2. Kyoto Univ.)

4:45 PM - 5:00 PM

[2J17] ALPS treated exposure to marine organism.

(1) Tritium transfer from ALPS treated water into marine organism's FWT.

*Ryota Matsumura¹, Momoko Nagata¹, Toshihiro Shibata¹, Noboru Ishizawa¹, Takeshi Furuta¹, Kazuo Yamanaka¹, Takayuki Irino¹ (1. TEPCO HD)

5:00 PM - 5:15 PM

[2J18] ALPS treated exposure to marine organism.

(2) Tritium intake from seawater tritium into flounder muscle OBT.

*Momoko Nagata¹, Toshihiro Shibata¹, Noboru Ishizawa¹, Takeshi Furuta¹, Kazuo Yamanaka¹, Takayuki Irino¹ (1. Tokyo Electric Power Company Holdings, Inc.)

5:15 PM - 5:30 PM

[2J19] Tritium Percolation and Release Behavior in Soil and Mineral Rock Components used for Plant Cultivation

*Michael Ofotsu Portuphy¹, Kazunari Katayama¹ (1. Kyushu University)

5:30 PM - 5:45 PM

[2J20] Evaluation of radiocesium uptake from water by the starry flounder, an euryhaline fish, under different salinity conditions

*Yuuki Manome¹, Toshihiro Wada¹ (1. Fukushima Univ.)

Time reserved for Chair （5:45 PM - 5:55 PM）

Oral presentation

[3J01-08] Fukushima 1

Fri. Sep 8, 2023 9:45 AM - 11:55 AM Room J (ES Bildg. 2F ES025)

Chair:Hiromi Yamazawa(Nagoya Univ.)

9:45 AM - 10:00 AM

[3J01] Investigation on distribution of radioactive substances in Fukushima

(1) Development of monitoring ecosystem services

*Sakae Kinase^1,2, Yuji Torikai², Satoshi Mikami¹, Masaki Andoh¹, Kimiaki Saito¹ (1. JAEA, 2. Ibaraki Univ.)

10:00 AM - 10:15 AM

[3J02] Investigation on distribution of radioactive substances in Fukushima

(2) Current Status of Radiation Monitoring based on KURAMA-II

*Minoru Tanigaki¹ (1. Kyoto Univ.)

10:15 AM - 10:30 AM

[3J03] Investigation on distribution of radioactive substances in Fukushima

(3)Analysis of the origin of the air dose rate reduction on route 6 by ASURA.

*Jun Goto¹ (1. Niigata Univ.)

10:30 AM - 10:45 AM

[3J04] Investigation on distribution of radioactive substances in Fukushima

(4)Reduction of Indoor Radiocaesium by Repeated Vacuuming in Dwelling Houses in Okuma Town

*Hiroko Yoshida¹, Naohide Shinohara² (1. Tohoku University, 2. National Institute of Advanced Industrial Science and Technology)

10:45 AM - 11:00 AM

[3J05] Investigation on distribution of radioactive substances in Fukushima

(5) Comparison of dose evaluation calculations for bremsstrahlung photons caused by high energy β rays using PHITS and GEANT4 codes

*Yoshiaki Shikaze¹ (1. JAEA)

11:00 AM - 11:15 AM

[3J06] Investigation on distribution of radioactive substances in Fukushima

(6) Long-term changes in distribution and transfer rate of radiocesium in forests in Fukushima

*Hiroaki Kato¹, Yuma Niwano¹, Hikaru Iida¹, Yuichi Onda¹ (1. Univ. of Tsukuba)

11:15 AM - 11:30 AM

[3J07] Investigation on distributino of radioactive substances in Fukushima

(7) Estimation of dissolved Cs-137 discharge flux by shallow groundwater in forest hillslope

*Yuma Niwano¹, Hiroaki Kato¹, Donovan Anderson¹, Hikaru Sato¹, Hikaru Iida¹, Miyu Nakanishi¹, Yuichi Onda¹ (1. University of Tsukuba)

11:30 AM - 11:45 AM

[3J08] Investigation on distribution of radioactive substances in Fukushima

(8)Effect of preferential flow on the chemical forms of Cs-137 in a cedar forest soil in Minamisoma

*Shunsuke Mishima¹, Junko Takahashi¹, Yuichi Onda¹ (1. Univ. of Tsukuba)

Time reserved for Chair （11:45 AM - 11:55 AM）

Oral presentation

[3J09-12] Fukushima 2

Fri. Sep 8, 2023 2:45 PM - 3:55 PM Room J (ES Bildg. 2F ES025)

Chair:Sakae Kinase(JAEA/Ibaraki Univ.)

2:45 PM - 3:00 PM

[3J09] Investigation on distribution of radioactive substances in Fukushima

(9) Temporal changes in the radiocesium in current-year tree roots of Japanese cedar forests

*Junko Takahashi¹, Takuya Sasaki¹, Satoshi Iguchi^1,2, Yuichi Onda¹ (1. Univ. of Tsukuba, 2. JAEA)

3:00 PM - 3:15 PM

[3J10] Investigation on distribution of radioactive substances in Fukushima

(10) Dynamic change of dissolved Cs-137 from headwater to the lower reaches of the Kuchibuto River basin

*Yuichi Onda Onda¹, Taichi Kawano¹, Junko Takahashi¹, Hiroaki Kato¹ (1. Center for Research in Radiation, Isotopes and Earth System Sciences)

3:15 PM - 3:30 PM

[3J11] Investigation on distribution of radioactive substances in Fukushima

(11) Factors and long-term changes in Cs-137 concentrations in river-bottom sediments in Fukushima Prefecture

*Naoyuki Wada¹, Yuichi Onda¹ (1. Univ. of Tsukuba)

3:30 PM - 3:45 PM

[3J12] Investigation on distribution of radioactive substances in Fukushima

(12) Modeling the effect of soil moisture content on the change of air dose rate in forests in Fukushima Prefecture

*Miyu Nakanishi¹, Yuichi Onda¹, Hiroaki Kato¹, Junko Takahashi¹ (1. University of Tsukuba)

Time reserved for Chair （3:45 PM - 3:55 PM）

Sessions

VII. Health Physics and Environmental Science » Health Physics and Environmental Science

[1J01-10] Dose Management

(1) Development of a traceability system for worker dose exposure

(2) Characteristics of smartphone-connected personal dosemeter

(3) Experience in worker’s dose exposure control

(1) Series overview and environmental restoration trends obtained from field observations

(2) Simulation analysis using detailed environmental model by 3D-ADRES

(3) Correlation between population dynamics and ecological half-life decay estimated by using LASSO

[2J01-08] Dose Assessment

(2) Confirmation of the usefulness of the new set-up for portable radiation portal monitors for vehicles

(3) Verification of discriminative ability for contamination by the new set-up for portable radiation portal monitors for vehicles

[2J09-20] Environmental Radiation

(1) Overview of research project

(2) Penetration of materials resuspended outdoors

(3) Resuspension of indoor deposited particles

(1) Tritium transfer from ALPS treated water into marine organism's FWT.

(2) Tritium intake from seawater tritium into flounder muscle OBT.

[3J01-08] Fukushima 1

(1) Development of monitoring ecosystem services

(2) Current Status of Radiation Monitoring based on KURAMA-II

(3)Analysis of the origin of the air dose rate reduction on route 6 by ASURA.

(4)Reduction of Indoor Radiocaesium by Repeated Vacuuming in Dwelling Houses in Okuma Town

(5) Comparison of dose evaluation calculations for bremsstrahlung photons caused by high energy β rays using PHITS and GEANT4 codes

(6) Long-term changes in distribution and transfer rate of radiocesium in forests in Fukushima

(7) Estimation of dissolved Cs-137 discharge flux by shallow groundwater in forest hillslope

(8)Effect of preferential flow on the chemical forms of Cs-137 in a cedar forest soil in Minamisoma

[3J09-12] Fukushima 2

(9) Temporal changes in the radiocesium in current-year tree roots of Japanese cedar forests

(10) Dynamic change of dissolved Cs-137 from headwater to the lower reaches of the Kuchibuto River basin

(11) Factors and long-term changes in Cs-137 concentrations in river-bottom sediments in Fukushima Prefecture

(12) Modeling the effect of soil moisture content on the change of air dose rate in forests in Fukushima Prefecture

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