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Study on flow measurement of transient thermal hydraulic phenomena using a thermal neutron beam as a probe

Research Project

Project/Area Number 07408011
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field エネルギー学一般・原子力学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

NISHIHARA Hideaki  Kyoto University, Research Reactor Institute (KURRI), Professor, 原子炉実験所, 教授 (50025920)

Co-Investigator(Kenkyū-buntansha) SAITO Yasushi  KURRI,Technician, 原子炉実験所, 教務職員 (40283684)
FUJINE Shigenori  KURRI,Instructor, 原子炉実験所, 助手 (90027441)
HIBIKI Takashi  KURRI,Associate Professor, 原子炉実験所, 助教授 (30228746)
MISHIMA Kaichiro  KURRI,Professor, 原子炉実験所, 教授 (60027472)
KANDA Keiji  KURRI,Professor, 原子炉実験所, 教授 (10027419)
米田 憲司  京都大学, 原子炉実験所, 助手 (10027443)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥20,800,000 (Direct Cost: ¥20,800,000)
Fiscal Year 1997: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1996: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1995: ¥18,700,000 (Direct Cost: ¥18,700,000)
Keywordsneutron radiography / high-frame-rate imaging / visualization / image processing / void fraction / multiphase flow / thermal hydraulics / severe accident / 中性子ライオグラフィ / 撮像限界 / 画像定量化 / 計測誤差 / シェ-デイング
Research Abstract

In this project, the following studies were performed to establish neutron radiography with the complementary characteristics to X-ray or gamma-ray radiography as an advanced measuring technique :
(1)Improvement of temporal resolution
High-frame-rate neutron radiography system with the maximum recording speed of 1000 frame/s was constructed by gathering up-to-date technologies such as a high flux steady neutron beam, a high-perfomance converter, a high-sensitivity camera, and an image intensifier with double micro channel plates. Two-phase flow in a metallic rectangular duct was visualized successfully at the recording speed of 1000 frame/s. Temporal resolution limit of high-frame-rate neutron radiography was estimated by statistics analysis of neutron number measurement in a low neutron flux field and light-decay characteristics of a converter.
(2)Development of quantification method of thermal neutron radiographic image
Void fraction measurement method was developed by taking account of scattered neutrons (SIGMA-scaling method). The SIGMA-scaling method was verified by experiments, a Monte Carlo simulation, and a simplified neutronic medel. It was demonstrated that the image processing method enabled flow measurements such as flow regime, bubble rise velocity, bubble size distribution, interfacial area concentration, liquid velocity field, and so on.
(3)Application to transient thermal hydraulic phenomena
The high-frame-rate neutron radiography system and the quantification method devepoled in this study were applied to various thermal hydraulic phenomena : visualization of vertical upward air-water flow in a narrow rectangular duct, void fraction measurement of vertical upward air-water flow in small diameter round tubes, visualization and measurement of premixing phenomena in a steam explosion, and flow measurement of molten metal-nitrogen gas two-phase flow with a large density ratio in relation to a severe accident study in a fast breeder reactor.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (106 results)

All Other

All Publications (106 results)

  • [Publications] T.Hibiki et al.: "Application of High Frame-Rate Neutron Radiography with a Steady Thermal Neutron Beam to Two-phase Flow Measurements is a Metallic Rectangular Duct" Nuclear Technology. 110. 422-435 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Effect of Inner Diameter on Some Characteristics of Air-Water Two-Phase Flows in Capillary Tubes" Transactions of the Japan Society of Mechanical Engineers. 61. 3197-3204 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization and Measurements of Two-Phase Flows in Meralic Ducts by Neutrons as Microscopic Probes (1st Report,Time-resolved Neutron Radiography and Its Limited Time-resolution)" Transactions of the Japan Society of Mechanical Engineers. 61. 3959-3966 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Some Characteristics of Air-Water Flow in Small Diameter Tubes" Proceedings of the International Conference on Multiphase Flows '95-Kyoto,April 3-7,1995,Kyoto,Japan. 3. P4-39-P4-45 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "High Frame-Rate Neutron Radiography for Visualization and Measurement of Gas-Liquid Two-phase Flow in a Metallic Rectangular Duct" Proceedings of the 2nd Joint ASME/JSME Fluids Engineering Conference,August 13-18,South Carolina,USA. 209. 243-250 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Development of Temporally-Resolved Neutron Radiography Methods for Visualization of High-Speed Transient Fluid Phenomena" Proceedings of the Second International Topical Meeting on Neutron Radiography System Design and Characterization,Nov.12-15,1995,Shonan Village Center/Rikkyo University,Hayama,Japan. 309-315 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Measurement of Radial Void Distribution of Two-Phase Flow in a Round Tube by Using Neutrons as a Probe" Proceedings of the Second International Topical Meeting on Neutron Radiography System Design and Characterization,Nov.12-15,1995,Shonan Village Center/Rikkyo University,Hayama,Japan. 316-323 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Feasibility of High Frame-Rate Neutron Radiography by Using a Steady Thermal Neutron Beam with 10^6n/ (cm^2・S) Flux" Nuclear Instruments and Methods in Physics Research. A369. 186-194 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization and Measurements of Two-Phase Flows in Meralic Ducts by Neutrons as Microscopic Probes (2nd Report,Measurements of Some Flow Characteristics Using Image Processing Techniquees)" Transactions of the Japan Society of Mechanical Engineers. 62. 137-144 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Quantitative-Measurement Limits of Thermal and Fluid Phenomena Using Neutron Attenuation Characteristics in Materials" International Journal of Experimental Heat Transfer,Thermodynamics,and Fluid Mechanics,Experimental Thermal and Fluid Science. 12. 461-472 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Metalic Ducts Using Neutrons as Microscopic Probes (3rd Report,Quantitative Method of Neutron Radiography Image)" Transactions of the Japan Society of Mechanical Engineers. 62. 919-926 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Some Characteristics of Air-Water Two-Phase Flow in Small Diameter Vertical Tubes" International Journal of Multiphase Flow. 22. 703-712 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Quantitative Method to Measure Void Fraction of Two-Phase Flow Using Electronic Imaging with Neutrons" Nuclear Science and Engineering. 124. 327-338 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Metalic Ducts Using Neutrons as Microscopic Probes (4th Report,Effect of Image Gray-Scale and Pixel-Number on Image-Quantification)" Transactions of the Japan Society of Mechanical Engineers. 62. 1781-1787 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Approximate Method for Measurement of Phase-Distribution in Multiphase Materials with Small Neutron-Attenuation Using a Neutron Beam as a Probe" Nuclear Instruments and Methods in Physics Research. A374. 345-351 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Meralic Ducts Using Neutrons as Microscopic Probes (5th Report,Radial Void Distribution Measurement Method of Two-Phase Flow in a Round Tube)" Transactions of the Japan Society of Mechanical Engineers. 62. 3002-3008 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization and Measurement of Two-Phase Flow by Using Neutron Radiography" Proceedings of the Fifth Japan-US Seminar on Two-Phase Flow Dynamics,1996. 339-346 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization Study on Molten Metal-Water Interaction by Using Neutron Radiography" Proceedings of the Workshop on Severe Accident Research in Japan,Oct.28-30,1996,Tokyo,Japan. (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Measurement of Radial Void Fraction Distribution of Two-Phase Flow in a Metallic Round Tube Using Neutrons as Microscopic Probes" Nuclear Instruments and Methods in Physics Research. A399. 432-438 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Real-Time Thermal Neutron Radiography" Journal of Nuclear Science and Technology. 34. 996-1005 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Prediction of Measurement Error Due to Low Gray-Scale and Spatial-Resolution of an Imaging System on Quantification of Neutron Radiographic Image" Nuclear Instruments and Methods in Physics Research. A388. 204-211 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization and Measurement of Two-Phase Flow by Using Neutron Radiography" Nuclear Engineering and Design. 175. 25-35 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Development of High-Frame-Rate Neutron Radioscopy and Quantitative Measurement Method for Multiphase Flow Research" Proc.OECD/CSNI Specialist Meeting on Advanced Instrumentation and Measurement Techniques,Santa Barbara,CA,March 17-20,1997. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "High-Frame-Rate Neutron Radioscopy with a Steady Thermal Neutron Beam" Neutron Radiography (5),DGZfP,Germany. 140-147 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Neutron Radioscopy" Neutron Radiography (5),DGZfP,Germany. 132-139 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: "Evaluation of Scattered Neutron Component in Thermal Neutron Radiography Image-Influence of Scattered Neutrons and Unparallelness of Incident Neutron Beam" Neutron Radiography (5),DGZfP,Germany. 175-182 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: "Verification of Neutron Radioscopic Measurement of Void Fraction by Monte Carlo Simulation" Neutron Radiography (5),DGZfP,Germany. 168-174 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Nakamura et al.: "High-Frame-Rate Video Visualization of Simulated Lower Head Behavior during TMI Accident Using High-Frame-Rate Neutron Radioscopy with a Steady Neutron Beam" Neutron Radiography (5),DGZfP,Germany. 665-672 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] J.T.Lindsay et al.: "Coking Determination in Gas Turbine Engine Nozzles Using Neutron Radiography" Neutron Radiography (5),DGZfP,Germany. 571-577 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography" Proceedings of International Seminar on Vapor Explosions and Explosive Eruptions,May 22-24,1997,Sendai,Japan. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: "Verification of Neutron Radiographic Measurement of Void Fraction by Monte Carlo Simulation" Nuclear Instruments and Methods in Physics Research. (in press). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: "Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography" Nuclear Engineering and Design. (in press). (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Application of High Frame-Rate Neutron Radiography with a Steady Thermal Neutron Beam to Two-phase Flow Measurements in a Metallic Rectangular Duct"" Nuclear Technology. 110. 422-435 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Effect of Inner Diameter on Some Characteristics of Air-Water Two-Phase Flows in Capillary Tubes"" Transactions of the Japan Society of Mechanical Engineers. 61. 3197-3204 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Visualization and Measurements of Two-Phase Flows in Metallic Ducts by Neutrons as Microscopic Probes (1st Report, Time-resolved Neutron Radiography and Its Limited Time-resolution)"" Transactions of the Japan Society of Mechanical Engineers. 61. 3959-3966 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Some Characteristics of Air-Water Flow in Small Diameter Tubes"" Proceedings of the International Conference on Multiphase Flows 95 Kyoto, April 3-7,1995, Kyoto, Japan. 3. P4-39-P4-45 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""High Frame-Rate Neutron Radiography for Visualization and Measurement of Gas-Liquid Two-phase Flow in a Metallic Rectangular Duct"" Proceedings of the 2nd Joint ASME/JSME Fluids Engineering Conference, August 13-18.South Carolina, USA. FED-Vol.209. 243-250 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Development of Temporally-Resolved Neutron Radiography Methods for Visualization of High-Speed Transient Fluid Phenomena"" Proceedings of the Second International Topical Meeting on Neutron Radiography System Design and Caracterization, Nov.12-15,1995, Shonan Village Center/Rikkyo University, Hayama, Japan. 309-315 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Measurement of Radial Void Distribution of Two-Phase Flow in a Round Tube by Using Neutrons as a Probe"" Proceedings of the Second International Topical Meeting on Neutron Radiography System Design and Characterization, Nov.12-15,1995, Shonan Village Center/Rikkyo University, Hayama, Japan. 316-323 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Feasibility of High Frame-Rate Neutron Radiography by Using a Steady Thermal Neutron Beam with 10^6 n/(cm^2・s) Flux"" Nuclear Instruments and Methods. 369. 186-194 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Visualization and Measurements of Two-Phase Flows in Metallic Ducts by Neutrons as Microscopic Probes (2nd Report, Measurements of Some Flow Characteristics Using Image Processing Techniques)"" Transactions of Japan Society of Mechanical Engineers. 62. 137-144 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Quantitative-Measurement Limits of Thermal and Fluid Phenomena Using Neutron Attenuation Characteristics in Materials"" International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics, Experimental Thermal and Fluid Sceinece. 12. 461-472 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (3rd Report, Quantitative Method of Neutron Radiography Image)"" Transactions of Japan Society of Mechanical Engineers. 62. 919-926 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Some Characteristics of Air-Water Two-Phase Flow in Small Diameter Vertical Tubes"" International Journal of Multiphase Flow. 22. 703-712 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K,Mishima et al.: ""Quantitative Method to Measure Void Fraction of Two-Phase Flow Using Electronic Imaging with Neutrons"" Nuclear Science and Engineering. 124. 327-338 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (4th Report, Effect of Image Gray-Scale and Pixel-Number on Image-Quantification)"" Transactions of the Japan Society of Mechanical Engineers. 62. 1781-1787 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Approximate Method for Measurement of Phase-Distribution in Multiphase Materials with Small Neutron-Attenuation Using a Neutron Beam as a Probe"" Nuclear Instruments and Methods in Physics Research. A374. 345-351 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (5th Report, Radial Void Distribution Measurement Method of Two-Phase Flow in a Round Tube)"" Transactions of the Japan Society of Mechanical Engineers. 62. 3002-3008 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Visualization and Measurement of Two-Phase Flows in Using Neutron Radiography"" Proceedings of the Fifth Japan-US Seminar on Two-Phase Flow Dynamics. 1996. 339-346 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography"" Proceedings of the Workshop on Severe Accident Research in Japan, Oct.28-30,1996, Tokyo, Japan. (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Measurement of Radial Void Fraction Distribution of Two-Phase Flow in a Metallic Round Tube Using Neutrons as Microscopic Probes"" Nuclear Instruments and Methods in Physics Research. A399. 432-438 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Real-Time Thermal Neutron Radiography"" Jounal of Nuclear Science and Technology. 34. 996-1005 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: ""Prediction of Measurement Emor Due to Low Gray-Scale and Spatial-Resolution of an Imaging System on Quantification of Neutron Radiographic Image"" Nuclear Instruments and Methods in Physics Research. A388. 204-211 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Visualization and Maesurement of Two-Phase Flow by Using Neutron Radiography"" Nuclear Engineering and Design. 175. 25-35 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Development of High-Frame-Rate Neutron Radioscopy and Quantitative Measurement Method for Multiphase Flow Research"" Proc.OECD/CSNI Specialist Meeting on Advanced Instrumentaiton and Measurement Techniques, Santa Barbara, CA. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""High-Frame-Rate Neutron Radioscopy with a Steady Thermal Neutron Beam"" Neutron Radiography (5), DGZfP,Germany. 140-147 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibili et al.: ""Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Neutron Radioscopy"" Neutron Radiography (5), DGZfP,Germany. 132-139 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: ""Evaluation of Scattered Neutron Component in Thermal Neutron Radiography Image-Influence of Scattered Neutrons and Unparallelness of Incident Neutorn Beam"" Neutron Radiography (5), DGZfP,Germany. 175-182 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: ""Verification on Neutron Radioscopic Measurement of Void Fraction by Monte Carlo Simulation"" Neutron Radiography (5), DGZfP,Germany. 168-174 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Nakamura et al.: "2High-Frame-Rate Video Visualization of Simulated Lower Head Behavior during TMI Accident Using High-Frame-Rate Neutron Radioscopy with a Steady Neutron Beam"" Neutron Radiography (5), DGZfP,Germany. 665-672 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] J.T.Lindsay et al.: ""Coking Determination in Gas Turbine Engine Nozzles Using Neutron Radiography"" Neutron Radiography (5), DGZfP,Germany. 571-577 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography"" Proceedings of International Seminar on Vapor Explosions and Explosive Eruptions, May 22-24,1997, Sendai, Japan. (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] H.Unesaki et al.: ""Verification of Neutron Radiographic Measurement of Void Fraction by Monte Carlo Simulation"" Nuclear Instruments and Methods in Physics Research. (in print).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] K.Mishima et al.: ""Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography"" Nuclear Engineering and Design. (in print).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] T.Hibiki et al.: "Application of High Frame-Rate Neutron Radiography with a Steady Thermal Neutron Beam to Two-phase Flow Measurements in a Metallic Rectangular Duct" Nuclear Technology. 110. 422-435 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Effect of Inner Diameter on Some Characteristics of Air-Water Two-Phase Flows in Capillary Tubes" Transactions of the Japan Society of Mechanical Engineers. 61. 3197-3204 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization and Measurements of Two-Phase Flows in Metallic Ducts by Neutrons as Microscopic Probes (lst Report.Time-resolved Neutron Radiography and lts Limited Time-resolution)" Transactions of the Japan Society of Mechanical Engineers. 61. 3959-3966 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Some Characteristics of Air-Water Flow in Small Diameter Tubes" Proceedings of the International Conference on Multiphase Flows '95-Kyoto,April 3-7,1995,Kyoto,Japan. 3. P4-39-P4-45 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "High Frame-Rate Neutron Radiography for Visualization and Measurement of Gas-Liquid Two-phase Flow in a Metallic Rectangular Duct" Proceedings of the 2nd Joint ASME/JSME Fluids Engineering Conference August 13-18,South Carolina,USA. 209. 243-250 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Development of Temporally-Resolved Neutron Radiography Methods for Visualization of High-Speed Transient Fluid Phenomena" Proceedings of the Second International Topical Meeting on Neutron Radiogroplry System Design and Charocterization,Nov.12-15,1995,Shonan Village Center/Rikkyo University,Hayama,Japan. 309-315 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Measurement of Radial Void Distribution of Two-Phase Flow in a Round Tube by Using Neutrons as a Probe" Proceedings of the Second International Topical Meeting on Neutron Radiography System Design and Charocterization,Nov.12-15,1995,Shonan Village Center/Rikkyo University,Hayama,Japan. 316-323 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Feasibility of High Frame-Rate Neutron Radiography by Using a Steaby Thermal Neutron Beam with 10^6n/(cm^2-S)Flux" Nuclear Instruments and Methods in Physics Research. A369. 186-194 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization and Measurements of Two-Phase Flows in Metallic Ducts by Neutrons as Microscopic Probes (2nd Report.Measurements of Some Flow Characteristics Using Imagc Processing Techniques)" Transactions of the Japan Society of Mechanical Engineers. 62. 137-144 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Quantitative-Measurement Limits of Thermal and Fluid Phenomena Using Neutron Attenuation Characteristics in Materials" International Journal of Experimental Heat Transfer,Thermodynamics,and Fluid Mechanics,Experimental Thermal and Fluid Science. 12. 461-472 (1996)

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      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (3rd Report.Quantiative Method of Neutroo Radiography lmage)" Transactions of the Japan Society of Mechanical Engineers. 62. 919-926 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Some Characteristics of Air-Water Two-Phase Flow in Small Diameter Vertical Tubes" International Journal of Multiphase Flow. 22. 703-712 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Quantitative Method to Measure Void Fraction of Two-Phase Flow Using Electronic Imaging with Neutrons" Nuclear Science and Engineering. 124. 327-338 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (4th Report.Effect of lmage Gray-Scak and Pirel-Number on Image Quantification)" Transactions of the Japan Society of Mechanical Engineers. 62. 1781-1787 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Approximate Method for Measurement of Phase-Distribution in Muluphase Materials with Smsll Neutron-Attenuation Using a Neutron Beam as a Probe" Nuclear Instruments and Methods in Physics Research. A374. 345-351 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Visualization and Measurements of Two-Phase Flows in Metallic Ducts Using Neutrons as Microscopic Probes (5th Report.Radial Void Distribution Measurement Method of Two-Phase Flow in a Round Tube)" Transactions of the Japan Society of Mechanical Engineers. 62. 3002-3008 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization and Measurement of Two-Phase Flow by Using Neutron Radiography" Proceedings of the Fifth Japan-US Seminar on Two-Phase Flow Dynamics,1996. 339-346 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography" Proceedings of the Workshop on Severe Accident Research in Japan,Oct.28-30,1996,Tokyo,Japan. (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Measurement of Radial Void Fraction Distribution of Two-Phase Flow in a Metallic Round Tube Using Neutrons as Microscopic Probes" Nuclear Instruments and Methods in Physics Research. A399. 432-438 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Real-Time Thermal Neutron Radiography" Journal of Nuclear Science and Technology. 34. 996-1005 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Prediction of Measurement Error Due to Low Gray-Scale and Spatial-Resoluoon of an Imaging System on Quantification of Neutron Radiographic lmage" Nuclear Instruments and Methods in Physics Research. A388. 204-211 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization and Measurement of Two-Phase Flow by Using Neutron Radiography" Nuclear Engineering and Design. 175. 25-35 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Development of High-Frame-Rate Neutron Radioscopy and Quantitative Measurement Method for Multiphase Flow Research" Proc.OECD/CSNI Specialist Meeting on Advanced Instrumentation and Measurement Techniques,Santa Barbara,CA,March 17-20,1997. (1997)

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      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "High-Frame-Rate Neutron Radioscopy with a Steady Thermal Neutron Beam" Neutron Radiography(5),DGZfP,Germany. 140-147 (1997)

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      1997 Annual Research Report
  • [Publications] T.Hibiki et al.: "Influence of Scattered Neutrons on Void Fraction Measurement of Two-Phase Flow Using Neutron Radioscopy" Neutron Radiography(5),DGZfP,Germany. 132-139 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Unesaki et al.: "Evaluation of Scattered Neutron Component in Thermal Neutron Radiography Image-Influence of Scatterd Neutrons and Unparallelness of Incident Neutron Ream" Neutron Radiography(5),DGZfP,Germany. 175-182 (1997)

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      1997 Annual Research Report
  • [Publications] H.Unesaki et al.: "Verification of Neutron Radioscopic Measurement of Void Fraction by Monte Carlo Simulation" Neutron Radiography(5),DGZfP,Germany. 168-174 (1997)

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      1997 Annual Research Report
  • [Publications] H.Nakamura et al.: "High-Frame-Rate Video Visualization of Simulated Lower Head Behavior during TMI Accident Using High-Frame-Rate Neutron Radioscopy with a Steady Ncutron Beam" Neutron Radiography(5),DGZfP,Germany. 665-672 (1997)

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      1997 Annual Research Report
  • [Publications] J.T.Lindsay et al.: "Coking Determination in Gas Turbine Engine Nozzles Using Neutron Radiography" Neutron Radiography(5),DGZfP,Germany. 571-577 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Mishima et al.: "Visualization Study of Molten Metal-Water Interaction by Using Neutron Radiography" Proceeding of International Seminar on Vapor Explosions and Explosive Eruptions,May 22-24,1997,Sendai,Japan. (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] H.Unesaki et al.: "Verification of Neutron Radiographic Measurement of Void Fraction by Monte Carlo Simulation" Nuclear Instruments and Methods in Physics Research. (in print). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 三島嘉一郎: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第1報、高時間分解能中性子ラジオグラフィーとその限界時間分解能)" 日本機械学会論文集(B編). 61巻591号. 3959-3966 (1995)

    • Related Report
      1996 Annual Research Report
  • [Publications] 三島嘉一郎: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第2報、画像処理による流動特性計測)" 日本機械学会論文集(B編). 62巻593号. 137-144 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Takashi Hibiki: "Feasibility of High-Frame-Rate Neutron Radiography by Using a Steady Thermal Neutron Beam with 10^6n/ (cm^2s) Flux" Nuclear Instruments d Methods in Physics Research,A. 369. 186-194 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 日引俊: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第3報、中性子ラジオグラフィー画像の定量化法)" 日本機械学会論文集(B編). 62巻595号. 919-926 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 日引俊: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第4報、画像定量化に及ぼす階調度および計測素数の影響)" 日本機械学会論文集(B編). 62巻597号. 1781-1787 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] Kaichiro Mishima: "Quantitative Method to Measare Void Fraction of Two-Phase Flow Using Electronic lmaging with Neutrons" Nuclear Science and Engineering. 124. 327-338 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 三島嘉一郎: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第1報,高時間分解能中性子ラジオグラフィーとその限界時間分解能)" 日本機械学会論文集(B編). 61. 161-168 (1995)

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      1995 Annual Research Report
  • [Publications] 三島嘉一郎: "中性子透過画像の定量化法に関する研究" 日本機械学会 平成7年度熱工学講演会. (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takashi Hibiki: "High Frame-Rate Neutron Radiography for Visualization and Measurement of Gas-Liquid Two-Phase Flow in a Metallic Rectangular Duct" American Society of Mechanical Engineers, Flow Visulization and Image Processing of Multiphase systems. FED-209. 243-250 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 三島嘉一郎: "プローブとして中性子を用いた金属管内気液二相流の可視化と計測(第2報,画像処理による流動特性計測)" 日本機械学会論文集(B編). 62. 137-144 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] Takashi Hibiki: "Feasibility of High Frame-rate Neutron Radiography by Using a steady Thermal Neutron Beam with 10^6n/(cm^2s) Flux" Nuclear Instruments Methods in Physics Research, A. 369. 186-194 (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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