Oral presentation

[1J10-14] Critical Experiment and Analysis

Wed. Mar 20, 2019 3:50 PM - 5:15 PM Room J (Common Education Bildg. 2 3F No.32)

Chair:Masao Yamanaka(Kyoto Univ.)

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3:50 PM - 4:05 PM

[1J10] R&D to improve accuracy of nuclear prediction for HTGR

(1) Experiment of first mock-up reactor with graphite system in KUCA

*Yuji yuji Fukaya¹, Minoru Goto¹, Shigeaki Nakagawa¹, Kunihiro Nakajima², Kazuki Takahashi², Atsushi Sakon², Kengo Hashimoto², Tadafumi Sano³ (1. JAEA, 2. Kinki Univ., 3. Kyoto Univ.)

4:05 PM - 4:20 PM

[1J11] Critical Experiment of Thorium Loaded Core at KUCA

(1) Critical experiment with hard neutron spectrum core

*Tadafumi Sano¹, Hironobu Unesaki¹, Hori Jun-ichi¹, Takahashi Yoshiyuki¹, Jaehong Lee¹, Kazuki Takahashi² (1. Institute for Integrated Radiation and Nuclear Science, Kyoto University, 2. Kindai University)

4:20 PM - 4:35 PM

[1J12] Critical Experiment of Thorium Loaded Core at KUCA

(2) Comparison of criticality analysis for present and previous experiment

*Hironobu Unesaki¹, Tadafumi Sano¹, Jun-ichi Hori¹, Yoshiyuki Takahashi¹, Jeahong Lee¹ (1. Institute for Integrated Radiation and Nuclear Science, Kyoto University)

4:35 PM - 4:50 PM

[1J13] Dynamic Characteristic Analysis using MVP3 in Polyethylene Moderated Critical Assembly

*Tsutomu Okamoto¹ (1. Nippon Advanced Information Service)

4:50 PM - 5:05 PM

[1J14] A Study of a pseudo trend phenomenon of the Feynman-α/ Bunching method

*Sin-ya Hohara¹, Atsushi Sakon¹, Tomohiro Endo², Kunihiro Nakajima³, Kazuki Takahashi³, Kengo Hashimoto¹ (1. Kindai University Atomic Energy Research Institute, 2. Nagoya University, 3. Graduate School of Science and Engineering, Kindai University)

Time reserved for Chair （5:05 PM - 5:15 PM）

Oral presentation

[2J01-05] Subcritical Experiment and Analysis

Thu. Mar 21, 2019 9:30 AM - 10:55 AM Room J (Common Education Bildg. 2 3F No.32)

Chair:Tomohiro Endo(Nagoya Univ.)

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9:30 AM - 9:45 AM

[2J01] Reactivity estimation of KUCA subcritical cores

(1)Kinematic parameter β_eff/l estimation using pulsed neutron method

*Shouhei Araki¹, Yuichi Yamane¹, Kotaro Tonoike¹, Yasunori Kitamura², Tsuyoshi Misawa² (1. Japan Atomic Energy Agency, 2. Kyoto Univ.)

9:45 AM - 10:00 AM

[2J02] Reactivity estimation of KUCA subcritical cores

(2) Estimation based on power profile in quasi-steady state

*Yuichi Yamane¹, Shohei Araki¹, Yasunori Kitamura², Tsuyoshi Misawa² (1. Japan Atomic Energy Agency, 2. Institute for Integrated Radiation and Nuclear Science, Kyoto University)

10:00 AM - 10:15 AM

[2J03] Reactor Noise Analysis for a Subcritical Reactor System Driven by a Spallation Neutron Source in KUCA

(1)Rossi-α and Feynman-α analysis considering delayed-neutron contribution

*Kunihiro Nakajima¹, Kazuki Takahashi¹, Atsushi Sakon², Sin-ya Hohara², Kengo Hashimoto², Masao Yamanaka³, Tadafumi Sano³, Cheolho Pyeon³ (1. Graduate School of Science and Engineering, Kindai University, 2. Atomic Energy Research Institude, Kindai University, 3. Institute for Integrated Radiation and Nuclear Science, Kyoto University)

10:15 AM - 10:30 AM

[2J04] Reactor Noise Analysis for a Subcritical Reactor System Driven by a Spallation Neutron Source in KUCA

(2) Analysis by Power Spectral Method

*Atsushi Sakon¹, Kunihiro Nakajima², Kazuki Takahashi², Sin-ya Hohara¹, Kengo Hashimoto¹, Masao Yamanaka³, Tadafumi Sano³, Cheolho Pyeon³ (1. Kindai University Atomic Energy Research Institute, 2. Graduate School of Science and Engineering, Kindai University, 3. Institute of Integrated Radiation and Nuclear Science, Kyoto University)

10:30 AM - 10:45 AM

[2J05] Simultaneous estimation of subcriticality, neutron generation time and external neutron source strength using particle filter method

*Takuya Ikeda¹, Tomohiro Endo¹, Akio Yamamoto¹, Masao Yamanaka², Tadafumi Sano², Cheol Ho Pyeon² (1. Nagoya Univ., 2. Institute for Integrated Radiation and Nuclear Science, Kyoto University)

Time reserved for Chair （10:45 AM - 10:55 AM）

Oral presentation

[2J06-09] uncertainty evaluation

Thu. Mar 21, 2019 10:55 AM - 12:00 PM Room J (Common Education Bildg. 2 3F No.32)

Chair:Go Chiba(Hokkaido Univ.)

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10:55 AM - 11:10 AM

[2J06] Generalization of the formulation on extended cross-section adjustment method

*Kenji Yokoyama¹, Takanori Kitada² (1. JAEA, 2. Osaka Univ.)

11:10 AM - 11:25 AM

[2J07] Bias factor and cross-section adjustment methods using prompt neutron decay constant

*Tomohiro Endo¹, Akio Yamamoto¹ (1. Nagoya University)

11:25 AM - 11:40 AM

[2J08] Implementation of random sampling for ACE-format cross sections using FRENDY

*Ryoichi Kondo¹, Tomohiro Endo¹, Akio Yamamoto¹, Kenichi Tada² (1. Nagoya Univ., 2. JAEA)

11:40 AM - 11:55 AM

[2J09] Development of a prediction model for modeling approximation error in the severe accident condition with a surrogate model

*Tomomi Hanai¹, Akio Yamamoto¹, Tomohiro Endo¹, Kento Yamamoto², Yasunori Ohoka², Hiroaki Nagano² (1. Nagoya Univ., 2. Nuclear Fuel Industries, Ltd.)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[2J10-12] Validation of Analysis Code

Thu. Mar 21, 2019 2:45 PM - 3:35 PM Room J (Common Education Bildg. 2 3F No.32)

Chair:Daisuke Sato(MHI)

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2:45 PM - 3:00 PM

[2J10] Development of Core Calculation System for BWR composed of Open Computer Code

(16)Effect of neutron spectrum for analysis of the FUBILA critical experiment

*Ryouhei Takasugi¹, Naoto Aizawa¹, Yohei Watanabe², Takashi Nakui², Fumito Kubo² (1. Tohoku Univ., 2. Tohoku information systems Co.,Inc.)

3:00 PM - 3:15 PM

[2J11] Analysis of nuclide composition of BWR 9×9 fuel assemblies considering coolant void fraction history.

*Masahiro Sakamoto¹, Takanori Kameyama¹ (1. Tokai univ.)

3:15 PM - 3:30 PM

[2J12] Analysis of BEAVRS Benchmark Using CASMO5/SIMULATE5

(2) Calculation Results of Cycle 2

*Tatsuya Fujita¹, Tomohiro Sakai¹ (1. Secretariat of Nuclear Regulation Authority)

Time reserved for Chair （3:30 PM - 3:35 PM）

Oral presentation

[2J13-17] Analysis Code Development 1

Thu. Mar 21, 2019 3:35 PM - 4:55 PM Room J (Common Education Bildg. 2 3F No.32)

Chair:Koji Fujimura(Hitachi GE)

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3:35 PM - 3:50 PM

[2J13] A User-friendly radiation dose evaluation Monte Carlo code for education / on-site use

*Tetsuo Matsumura¹, Takanori Kameyama¹ (1. Tokai University)

3:50 PM - 4:05 PM

[2J14] Development of SCOPE2, Core Calculation Code Based on 3-D Fine-Mesh Multi-Group Transport Calculation for PWR

(13) Development of Power Distribution Calculation Model Considering Fuel Assembly Bowing

*Kento Yamamoto¹, Yasunori Ohoka¹, Hiroaki Nagano¹, Akio Yamamoto², Tomohiro Endo² (1. Nuclear Fuel Industries, Ltd., 2. Nagoya Univ.)

4:05 PM - 4:20 PM

[2J15] Development of Mitsubishi Three-Dimensional Heterogeneous Transport Calculation Code GALAXY-Z

(3) Transverse Leakage Approximation using Angular Flux

*Kazuya Yamaji¹, Koichi Ieyama¹, Hiroki Koike¹, Daisuke Sato¹ (1. Mitsubishi Heavy Industries, Ltd.)

4:20 PM - 4:35 PM

[2J16] Verification of FRBurner module of CBZ code system: MET-1000 core calculation based on OECD/NEA benchmark report

*Junshuang FAN^1,2,3, Chiba Go^1,2,3 (1. Hokkaido Univ., 2. Faculty of Engineering, 3. Nuclear Reactor Engineering Laboratory)

4:35 PM - 4:50 PM

[2J17] Study on Calculation of Void Reactivity for Sodium Fast Reactors with sodium-plenum

*Shota USHIHARA¹, Takanori KITADA¹, Satoshi TAKEDA¹ (1. Osaka Univ.)

Time reserved for Chair （4:50 PM - 4:55 PM）

Oral presentation

[2J18-21] Analysis Code Development 2

Thu. Mar 21, 2019 4:55 PM - 6:00 PM Room J (Common Education Bildg. 2 3F No.32)

Chair:Kazuya Yamaji(MHI)

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4:55 PM - 5:10 PM

[2J18] Development of Inherent Safety Fast Reactor by Using Blanket Bearing Minor Actinides

(4)Development of Transient Analysis Method of Inherent Safety Fast Reactor Core

*Toshikazu Takeda¹, Satoshi Takeda², Takanori Kitada², Koji Fujimura³ (1. University of Fukui, 2. Osaka University, 3. Hitachi-GE Nuclear Energy)

5:10 PM - 5:25 PM

[2J19] Development of Inherent Safety Fast Reactor by Using Blanket Bearing Minor Actinides

(5) Development of transient analysis code based on Sn method

*Satoshi Takeda¹, Takanori Kitada¹, Koji Fujimura², Kazuhiro Fujimata², Toshikazu Takeda³ (1. Osaka University, 2. Hitachi-GE, 3. University of Fukui)

5:25 PM - 5:40 PM

[2J20] Development of Inherent Safety Fast Reactor by Using Blanket Bearing Minor Actinides

(6)Survey for Achieving Low Void and Burnup Reactivity

*Sho Fuchita¹, Koji Fujimura¹, Kazuhiro Fujimata¹, Takeshi Nitawaki¹, Toshikazu Takeda², Satoshi Takeda³ (1. Hitachi-GE, 2. Fukui Univ., 3. Osaka Univ.)

5:40 PM - 5:55 PM

[2J21] Study on Fast Reactor Core to Manage Degraded Plutonium and Minor Actinoid

(5) Interpretation of Reactivity Coefficient Improvement by the Silicon Carbide Structural Material

*Tetsuya Mouri¹, Kazuteru Sugino¹, Shigeo Ohki¹ (1. Japan Atomic Energy Agency)

Time reserved for Chair （5:55 PM - 6:00 PM）

Oral presentation

[3J01-04] Analysis Model

Fri. Mar 22, 2019 9:45 AM - 10:50 AM Room J (Common Education Bildg. 2 3F No.32)

Chair:Satoshi Takeda(Osaka Univ.)

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9:45 AM - 10:00 AM

[3J01] Study on neutron spectrum in HTTR at MVP burnup calculation

*Kazuaki Matsunaka¹, Nozomu Fujimoto¹, Toshiaki Ishii², Etsuo Ishitsuka², Satoru Nagasumi² (1. Kyushu Univ. Engineering, 2. JAEA)

10:00 AM - 10:15 AM

[3J02] A Verification of Delayed Neutron Models Using a Delayed-to-Prompt Ratio Index by Feynman-α Analysis

*Kazuki Takahashi¹, Kunihiro Nakazima¹, Atsushi Sakon², Sin-ya Hohara², Kengo Hashimoto² (1. Graduate School of Science and Engineering, Kindai University, 2. Atomic Energy Research Institute, Kindai University)