Oral presentation

[1J01-04] Behavior of Radioactive Nuclides

Wed. Mar 16, 2022 9:30 AM - 10:45 AM Room J

Chair: Yoichi Wada (Hitachi)

9:30 AM - 9:45 AM

[1J01] Reaction of cesium hydroxide with iron oxides on stainless steels under simulated accident environment below 600℃

*Xin Tan¹, Kenta Murakami², Tatsuya Suzuki¹ (1. Nagaoka Univ. of Tech., 2. UTokyo)

9:45 AM - 10:00 AM

[1J02] Evaluation of FP Behavior Models for SAs

(2)Evaluation of aerosol formation and growth models in SA codes

*Hidetoshi Karasawa¹, Shuuhei Miwa¹, Chiaki Kino² (1. JAEA, 2. IAE)

10:00 AM - 10:15 AM

[1J03] Evaluation of Short and Long-Term Behavior of Radioactive Nuclides Distributed in Fukushima Daiichi NPP

(10)Long term FP behavior Analysis for 1F Unit-2

*Chiaki Kino¹, Kenichi Tezuka¹, Hidetoshi Karasawa², Shunsuke Uchida² (1. IAE, 2. JAEA)

10:15 AM - 10:30 AM

[1J04] Study on water-leaching behavior for Cs chemisorbed on stainless steel

*Jumpei Imoto¹, Kunihisa Nakajima¹, Masahiko Osaka¹ (1. JAEA)

Time reserved for Chair （10:30 AM - 10:45 AM）

Oral presentation

[1J05-08] Corrosion, Electrochemistry, Radiolysis 1

Wed. Mar 16, 2022 10:45 AM - 12:00 PM Room J

Chair: Yutaka Watanabe (Tohoku Univ.)

10:45 AM - 11:00 AM

[1J05] The effects of hydrogen addition on the corrosive conditions of PWR primary coolant under irradiation

5 Effects ofboric acid and lithium hydroxide on radiolysis and ECP

*Shunsuke Uchida¹, Kuniki Hata¹, Satoshi Hanawa¹, Yasuhiro Chimi¹ (1. JAEA)

11:00 AM - 11:15 AM

[1J06] Electrochemical Corrosion Potential Calculation Model for Nickel Base Alloy 182 in High Temperature – High Purity Water

*Yoichi Wada¹, Kazushige Ishida¹, Masahiko Tachibana¹, Ryosuke Shimizu² (1. Hitachi, Ltd., 2. Hitachi-GE Nuclear Eenrgy, Ltd.)

11:15 AM - 11:30 AM

[1J07] Effects of Oxidation Treatment on Suppression of Flow Accelerated Corrosion of Carbon Steel Containing Impurity Level of Chromium

*Kazushige Ishida¹, Yoichi Wada¹, Ryosuke Shimizu² (1. Hitachi, 2. HGNE)

11:30 AM - 11:45 AM

[1J08] Effect of liquid film thickness on the electrochemical behavior of steels under flowing liquid film

*Kyohei Otani¹, Fumiyoshi Ueno¹ (1. JAEA)

Time reserved for Chair （11:45 AM - 12:00 PM）

Oral presentation

[1J09-12] Corrosion, Electrochemistry, Radiolysis 2

Wed. Mar 16, 2022 2:45 PM - 3:50 PM Room J

Chair: Kuniki Hata (JAEA)

2:45 PM - 3:00 PM

[1J09] Evaluation of the Effect of Harmless Anion Addition on the Rate of Chloride Ion Emission from the Crevice

*Kazuma Kitamoto¹, Kazuki Yakata¹, Yutaka Watanabe¹, Hideo Okada² (1. Tohoku Univ., 2. Chubu Electric Power)

3:00 PM - 3:15 PM

[1J10] Measures against deterioration of ion exchange resin in decommissioning chemical decontamination

*Hideyuki Hosokawa¹, Kazushige Ishida¹, Tsuyoshi Ito², Ohira Takashi², Shintaro Yanagisawa² (1. Hitachi, Ltd. Research & Development Group, 2. Hitachi-GE Nuclear Energy, Ltd)

3:15 PM - 3:30 PM

[1J11] Pulse radiolysis study on formation process of nanoparticles in organics-free platinum aqueous solution (4)

*Yusa Muroya¹, Kazushige Ishida², Yoichi Wada², Ryosuke Shimizu³, Takahiro Kozawa¹ (1. SANKEN, Osaka Univ., 2. Res. Develop. Gr, Hitachi, Ltd., 3. Hitachi GE, Ltd.)

3:30 PM - 3:45 PM

[1J12] The Radiolysis of Formic Acid and Oxalic Acid under Intermediate Disposal Environment

*Kazuma Kuroda¹, Ryo Nakabayashi¹, Shingo Tanaka¹, Daisuke Sugiyama¹ (1. CRIEPI)

Time reserved for Chair （3:45 PM - 3:50 PM）

Oral presentation

[1J13-18] Corrosion, Electrochemistry, Radiolysis 3

Wed. Mar 16, 2022 3:50 PM - 5:30 PM Room J

Chair: Shunsuke Uchida (JAEA)

3:50 PM - 4:05 PM

[1J13] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(1)Aims and plan of the research

*Yutaka Watanabe¹, Chiaki Kato², Mitsumasa Taguchi³, Hideki Katayama⁴ (1. Tohoku Univ., 2. JAEA, 3. QST, 4. NIMS)

4:05 PM - 4:20 PM

[1J14] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(2)Effects of α- and β-ray radiation on corrosion -Evaluation of fuel debris behavior and radioactivity-

*Nobuaki Sato¹, Kuniki Hata², Tomonori Sato², Chiaki Kato² (1. Tohoku Univ., 2. JAEA)

4:20 PM - 4:35 PM

[1J15] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(3)Effects of α- and β-ray radiation on corrosion -Electromechical investigations using sealed beta source-

*Tomonori Sato¹, Chiaki Kato¹, Nobuaki Sato², Kuniki Hata¹, Yutaka Watanabe² (1. Japan Atomic Energy Agency, 2. Tohoku University)

4:35 PM - 4:50 PM

[1J16] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(4)Corrosive species produeced from gas-liquid two-phase system under gamma-ray iradiation

*Kuniki Hata¹, Atsushi Kimura², Mitsumasa Taguchi², Tomonori Sato¹, Chiaki Kato¹, Yutaka Watanabe³ (1. JAEA, 2. QST, 3. Tohoku Univ.)

4:50 PM - 5:05 PM

[1J17] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(5)Corrosion experiments under simulated irradiation conditions -Effect of hydrogen peroxide on carbon steel corrosion-

*Hiroshi Abe¹, Nobunari Takizawa¹, Yutaka Watanabe¹ (1. Tohoku Univ.)

5:05 PM - 5:20 PM

[1J18] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(6)Investigation of corrosion inhibition effect of carbon steel by ultra-fine bubbles

*Yusuke Tsutsumi¹, Yusuke Muto², Hikari Watanabe², Isao Shitanda², Masayuki Itagaki², Hideki Katayama¹ (1. NIMS, 2. TUS)

Time reserved for Chair （5:20 PM - 5:30 PM）

Sessions

V. Nuclear Fuel Cycle and Nuclear Materials » 503-1 Reactor Chemistry, Radiation Chemistry, Corrosion, Water Chemistry,Water Quality Control

[1J01-04] Behavior of Radioactive Nuclides

[1J01] Reaction of cesium hydroxide with iron oxides on stainless steels under simulated accident environment below 600℃

[1J02] Evaluation of FP Behavior Models for SAs

(2)Evaluation of aerosol formation and growth models in SA codes

[1J03] Evaluation of Short and Long-Term Behavior of Radioactive Nuclides Distributed in Fukushima Daiichi NPP

(10)Long term FP behavior Analysis for 1F Unit-2

[1J04] Study on water-leaching behavior for Cs chemisorbed on stainless steel

[1J05-08] Corrosion, Electrochemistry, Radiolysis 1

[1J05] The effects of hydrogen addition on the corrosive conditions of PWR primary coolant under irradiation

5 Effects ofboric acid and lithium hydroxide on radiolysis and ECP

[1J06] Electrochemical Corrosion Potential Calculation Model for Nickel Base Alloy 182 in High Temperature – High Purity Water

[1J07] Effects of Oxidation Treatment on Suppression of Flow Accelerated Corrosion of Carbon Steel Containing Impurity Level of Chromium

[1J08] Effect of liquid film thickness on the electrochemical behavior of steels under flowing liquid film

[1J09-12] Corrosion, Electrochemistry, Radiolysis 2

[1J09] Evaluation of the Effect of Harmless Anion Addition on the Rate of Chloride Ion Emission from the Crevice

[1J10] Measures against deterioration of ion exchange resin in decommissioning chemical decontamination

[1J11] Pulse radiolysis study on formation process of nanoparticles in organics-free platinum aqueous solution (4)

[1J12] The Radiolysis of Formic Acid and Oxalic Acid under Intermediate Disposal Environment

[1J13-18] Corrosion, Electrochemistry, Radiolysis 3

[1J13] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(1)Aims and plan of the research

[1J14] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(2)Effects of α- and β-ray radiation on corrosion -Evaluation of fuel debris behavior and radioactivity-

[1J15] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(3)Effects of α- and β-ray radiation on corrosion -Electromechical investigations using sealed beta source-

[1J16] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(4)Corrosive species produeced from gas-liquid two-phase system under gamma-ray iradiation

[1J17] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(5)Corrosion experiments under simulated irradiation conditions -Effect of hydrogen peroxide on carbon steel corrosion-

[1J18] Challenge toward extensive corrosion prevention in PCV system under the Influence of α/β/γ radiation

(6)Investigation of corrosion inhibition effect of carbon steel by ultra-fine bubbles

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