KURRI Progress Report 1991

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I. RESEARCH ACTIVITIES

1. Slow Neutron Physics and Neutron Scattering

(1.1) Neutron Diffraction Study on Partially Deuterated CsH2PO4 Crystals  /p.2

(1.2) Neutron Diffraction Study on Deuterated Hydrogen-Bonded Ferroelectrics   /p.4

(1.3) Neutron Diffraction Studies of the Magnetic Structures of Tb under High Pressure  /p.6

(1.4) Studies on Magnetic Structure and Magnetization Processes of ErCu2 Single Crystal  /p.8

(1.5) Magnetic Phase Diagram of DyRu2Si2  /p.10

(1.6) Magnetic Structures of Erbium under High Pressure  /p.12

(1.7) 4-Circle Neutron Diffractometer (KUR-4CND) at B3 Beam Hole  /p.14

(1.8) Outline of Neutron Diffractometer (KUR-TAS) at B2 Beam Hole  /p.16

(1.9) Time-of-Flight Double Bragg Reflection at Small Scattering Angle for a Study on Microplasticity in Metals  /p.18

(1.10) Quality of Cold Neutron Beam of CN-2 Guide Tube in KUR  /p.20

(1.11) Performance of the Small-Angle Neutron Scattering Instrument at KUR  /p. 22

(1.12) A Spin Echo Spectroscopy Using Transverse Magnetic Field  /p.24

(1.13) Development of Very Cold Neutron Study   /p.26

(1.14) Studies on Ultracold Neutrons  /p.28

(1.15) Multilayer Mirror Interferometer for Very Cold Neutrons  /p.29

(1.16) Feasibility Study of Multilayer Mirror Interferometer for Very Cold Neutrons  /p.31

(1.17) Design and Construction of an Inverted Geometry Spectrometer with Multi-Detector Assembly   /p.33

(1.18) Data Acquisition System of a Time-of-Flight Analyzer for Use in a Multi-Detector Assembly for Neutron scattering Experiments  /p.35

2. Nuclear Physics and Nuclear Chemistry

(2.1) Studies on the Nucleus 146Ce  /p.38

(2.2) Lifetime Measurements of Excited States in Neutron-Rich Nuclei 147Nd and 153Pm Using a BaF2 Scintillator   /p.40

(2.3) Studies on Short-Lived Fission Products with KUR-ISOL  /p.42

(2.4) Fundamental Studies on the Atomic Mass Determination by Means of Nuclear Spectroscopy   /p.44

(2.5) Nuclear Polarization of Unstable Nuclei with Radiation-Detected Optical Pumping in Solids  /p.46

(2.6) Measurement of r-Ray Emission Probabilities for the Short-Lived Nuclides.  /p.48

(2.7) Study on Multi-Mode Fission Mechanism  /p.50

(2.8) Development of Efficient Ionization Techniques for On-Line Separation of Products by a Surface Ionization Ion Source  /p.52

(2.9) Characteristics of a Nitrogen-Jet System in KUR-ISOL  /p.54

(2.10) Characteristics of a 4πβγ-Coincidence System and a Search for 157Nd  /p.56

(2.11) Analysis of Chemical Species of Nuclides Produced by Se(n,-γ) Reaction  /p.58

(2.12) Radio Ion Chromatographic Studies on the Chemical Species Formed by Neutron Irradiation  /p.60

3. Reactor Physics and Reactor Engineering

(3.1) Measurement of Fission Yields from 233U Foil Irradiated at Heavy Water Thermal Neutron Facility of the Kyoto University Reactor  /p.64

(3.2) Measurement of 235U Fission Spectrum-Averaged Cross Sections and Neutron Spectrum Adjusted with the Activation Data  /p.66

(3.3) Neutron Spectra Adjusted with Multi-Foil Activation Data in Research Reactors  /p.68

(3.4) Calibration of Detector Efficiency for Absolute Measurement of Neutron Reaction Rates  /p.70

(3.5) Effective Thermal Neutron Collimation for Neutron Capture Therapy Using Neutron Scattering and Absorption Reactions  /p.72

(3.6) Reevaluation of Thermal Neutron Field of the KUR Heavy Water Facility for Biomedical Uses (Optimization of Bismuth, Heavy Water -and Graphite Layers)  /p.74

(3.7) Analysis for Remodeling the KUR Heavy Water Facility for Biomedical Uses (Shutter System for Continuous Use of the Facility under 5MW Operation)  /p.76

(3.8) Lead Showing-Down Spectrometer Coupled to Electron Linac (I) Outline of the Spectrometer  /p.78

(3.9) Lead Showing-Down Spectrometer Coupled to Electron Linac (II) Neutron Time Behavior in Lead  /p.80

(3.10) Lead Showing-Down Spectrometer Coupled to Electron Linac(Ⅲ) NeutronSpectrum by Activation Data  /p.82

(3.11) Measurement of Fission Cross Section of Np-237 in Resonance Region with Elect!on Li.nae Driven Lead Slowing-down -Spectrometer (KULS)  /p.84

(3.12) Absolute Measurement of Neutron Capture Cross Sections by BGO Scintillator  /p.86

(3.13) Leakage Neutron Spectra from Various Sphere PilesIrradiated with 14 MeV Neutrons   /p. 88

(3.14) Nuclear Characteristics Design of Upgraded KUR Core   /p.90

(3.15) Calculated Energy and Angular Dependence •Of Particle Fluxes at the Exit of the Advanced Neutron Source Radial and Tangential Beam Tubes  /p.92

(3.16) Study on Critical Heat Flux in Small Diameter Tubes  /p.94

(3.17) Study on Critical Heat Flux in a Channel Heated from One Lateral Side  /p.96

(3.18) An Experimental Study of Inception of Flow Boiling Water  /p.98

(3.19) Reactor Physics Study through Critical Experiments by Using the KUCA  /p.100

(3.20) Experiment on High Conversion Water Reactor with Double Flat. Cores  /p.102

(3.21) Critical Experiments on a Vm/ Vt = 0.67 Core with Side Blanket   /p.104

(3.22) Assessment of Neutron Spectrum at the Center of B3/8″P36EU-NU-EU(3) Core with Foil Activation Technique  /p.106

(3.23) Measurement of Foil Reaction Rate in the Center of “B” Core  /p.108

(3.24) Measurement of Foil Reaction Rate in the Center of “B” Core  /p.110

(3.25) Measurement of Effective Beta for Thermal Neutron System by Using Bennett Method (2)  /p.112

(3.26) Determination of Effective Delayed Neutron Fraction Using the Coupled Reactor Theory   /p.114

(3.27) Fundamental Study of Thorium Hybrid Reactor System  /p.116

(3.28) Analysis of KUCA Benchmark Problems  /p.118

(3.29) Generation of Effective Cross Section Using Multiband Method  /p.121

(3.30) Relationships between Reactor Kinetic Time Parameters  /p.122

(3.31) Prediction of Site-Specific Strong Ground Motion Using Semi-Empirical Methods  /p.124

(3.32) Studies on Nuclear Pyrochemical Processing  /p.125

4. Material Science and Radiation Effects

(4.1) TDPAC Experiments with 140Ba-140La Implanted in YBaCuO Compounds   /p.128

(4.2) The Hyperfine Magnetic Field in Fe-Hf Amorphous at Low Temperatures Observed by TDPAC Technique  /p.130

(4.3) Hyperfine Interaction Studies of Local Properties in Matter  /p.132

(4.4) 197Au Mossbauer Spectroscopy of the Cubic Phase in the Halogen Bridged Mixed Valence Complex Cs2Au2I 6  /p.134

(4.5) Mossbauer Spectroscopic Study of Iodine Compounds  /p.136

(4.6) Metallic Transport Properties in Conducting Organic Polymers  /p.138

(4.7) 1291 and 125Te Mossbauer Studies of Polyvinyl Alcohol

Films Doped with Iodine  /p.140

(4.8) Mossbauer Spectroscopic Study of Polyacetylene Doped with Iodine  /p.142

(4.9) Mossbauer Spectroscopic Study of Iodine-Doped Polyis_oprene  /p.144

(4.10) Mossbauer Study of Fullerene C60 Doped with 129I  /p.146

(4.11) H/b Isotopic Analysis of Heavy Water by Fourier-Tansform Infrared Sectrophotometry   /p.148

(4.12) Determination of Trace Elements in a Silicon Single Crystal  /p.150

(4.13) Activation Analysis of High-Purity Metals  /p.152

(4.14) Raman Study of Organic Glasses at Very Low Temperatures  /p.154

(4. 15) Swelling of Epoxy Based Resin and FRP  /p.156

(4.16) Effect of Neutron Irradiation on Cryogenic Temperature Strength of Electron Beam Welded Joint of Improved High Manganese Steels  /p.158

(4.17) Study of Irradiation Effects in Non-Metallic Conductors (3)  /p.160

(4.18) Neutron Irradiation Effect on La2CuO4 /p. 162

(4.19) Studies of Damage Formation in Neutron-Irradiated Metals and Superconductors  /p.164

(4.20) Effects of Neutron Irradiation on Superconducting Properties under Stress in Superconducting Wires  /p.166

(4.21) Radiation Damages in Ammonium Silver Halide Crystal  /p.168

(4.22) Optical Transitions of NC. Ions in Neutron-Irradiated MgO Crystal  /p.170

(4.23) Lattice Defects in Ru tile, TiO2, Irradiated with Reactor Neutrons at Low Temperature  /p.172

(4.24) Lattice Defects in Rutile Single Crystals  /p.174

(4.25) Annealing Process of Defects in Iron Implanted Gallium Arsenide  /p.176

(4.26) Determination of Constituent Atoms of Defect Clusters by Isotope Effect of Local-Mode Phonon  /p.178

(4.27) Positron Annihilation Lifetime Measurement of Electron-Irradiated Iron Alloys  /p.180

(4.28) Positron Lifetime Study of Radiation Damage in Materials I. Intermetallic Compound TiAl   /p.182

(4.29) Radiation Hardness of Plastic Scintillating Fiber against Fast Neutron and r-Ray Irradiation   /p.184

(4.30) Basic Study on Neutron Transmutation Doping (NTD) of Silicon  /p.186

(4.31) Neutron Transmutation Doping on Compound Semiconductor  /p.188

5. Geochemistry and Ennvvironmental Science

(5.1) The Studies on the Genesis of Volcanic Rocks by Partition of Trace Elements  /p.192

(5.2) Noble Metals in Ocean Floor Rock Samples  /p.194

(5.3) Geochemical Studies on Trace Element Abundances in Igneous Rocks and Sedimentary Rocks in Island-Arcs  /p.196

(5.4) REE Composition of the Paleozoic and Mesozoic Mudstones in SW Japan  /p.198

(5.5) Origin of Paleo-Mesozoic Oceanic Basalts Deduced from Trace Element Abundance

(5.6) Geochemical Study of Trace Elements in Hydrosphere by Neutron Activation Analysis I. Elemental Composition and Its Characteristics of Ferromanganese Concretions from Lake Biwa  /p.202

(5.7) Geochemical Characteristics and Alteration of the Miocene Basaltic Rocks in the Nibetsu Area, Akita City  /p.204

(5.8) Neutron Activation Analysis of Granite Slices and Their Luminescence Phenomena after γ-Rray Irradiation  /p.206

(5.9) Thermoluminescence Study of Geological Materials  /p.208

(5.10) Geochemical Study by Neutron Activation Analysis on Precipitates in the Atmosphere and the Hydrosphere  /p.210

(5.11) Study on the Influence of Acid Rain on the Earth Environments  /p.212

(5.12) Effect of Environmental Pollution on the Elementary Composition of Plants  /p.214

(5.13) Inorganic Elements in Stems of Hardwoods -The Radial Distribution in Woods and Concentration in Barks –  /p.216

(5.14) Study on the Trace Element Concentrations in Mussel  /p.218

(5.15) Neutron Activation Analyses of Uranium-238 and Thorium-232 in Fossil Molluscan Shells and Their Environs  /p.220

6 Life Science and Medical Science

(6.1) Cellular Responses to Ionizing Radiation in Higher Eukaryotes  /p.

(6.2) Repair of Transforming Capacity of Irradiated Cells in aRadiation Resistant Bacterium, Deinococcus radiodurans  /p.226

(6.3) Modulation in Radiation Resistance by Metabolic Inhibitors in~ an Extremely Radiation Resistant Microorganism  /p.228

(6.4) Studies on the Synergistic Killing Effect of High LET Radiation and Hyperthermia in Deinococcus radiodurans (III)  /p. 230

(6.5) Radiation Tolerance and Its Mechanism in Algae   /p.232

(6.6) Studies on Use of Thermal Neutrons in Plant Breeding -Development of Rice Varieties Adaptable to Nature Farming –  /p.234

(6.7) Organ and Its Subcellular Distribution of Transition Elements in Animals  /p.236

(6.8) Neutron Activation Analysis of Multielement in Human Organs  /p.238

(6.9) Arsenic (As) Metabolism in Mice  /p.240

(6.10) Characteristics of Species Based on Element Composition in Wood Leaf  /p.242

(6.11) Neutron Activation Analysis for Trace Elements of Am yotrophic Lateral Sclerosis  /p.244

(6.12) Mechanisms of the Synergistic Effects by Combination of CDDP and Hyperthermia on Tumor Growth of Transplantable Human Esophageal Cancer  /p.246

(6.13) Hyperthermic Augmentation of the Cytotoxicity of Cisplatin against Cisplatin-Resistant Cells  /p.248

(6.14) Alteration of Cisplatin Accumulation in Cisplatin-Resistant Cancer Cell Lines  /p.250

(6.15) The Number of Platinum Atoms Binding to DNA, RNA and Protein Molecules of HeLa Cells Treated with cis- Diamminedichloroplatinum(II) at Its Mean Lethal Concentration  /p.252

(6.16) Effects of Whole_-_Body X-Irradiation on Tissue Distribution of 195mpt:Cisplatin in Mice  /p.254

(6.17) The Mechanism of the Difference in Cellular Uptake of Cisplatin in Non-Small Cell Lung Cancer Line (PC-14) and It’s Cisplatin-Resistant Subline (PC-14/CDDP)  /p.256

(6.18) Uptake and Subcellular Distribution of High Radioactive 195mPt-Cisplatin into Human Esophageal Cancer Cells  /p.258

Incorporation and Subcellular Distribution of [195mPt] CDDP with Thermal Treatment for Human Esophageal Cancer Cells  /p.260

(6.20) Basic Research on the Development of Radioactive- Copper Labeled Radiopharmaceuticals  /p.262

7. Neutron Capture Therapy

(7.1) Neutron Capture Therapy of Human Malignant Melanoma  /p.266

(7.2) Studies on Selective Thermal Neutron Capture Therapy of Malignant Melanoma -Evaluation of Lethal Effect of BNCT in vitro and in vivo Using Tumor Bearing Animals –  /p.268

(7.3) Studies on Selective Thermal Neutron Captur~ Therapy of Malignant Melanoma -Determination -of 10B Content by Prompt r-Ray Spectrometry –  /p.270

(7.4) Neutron Capture Therapy  /p.272

(7.5) Radiobiological Studies on Gadolinium Neutron Capture Therapy  /p.274

(7.6) Studies of the Chemical Nature of Boron-Carriers for the Neutron Capture Therapy by Electrophoresis and ICP-AES  /p.276

(7.7)Chemical Behavior of p-Dihydroxyborylphenylalanine and Aromatic Amino Acid Analogues in Aqueous Solutions  /p.278

(7.8) Relation between Tolerance Dose of Skin and Boron-10 Concentration in Neutron Capture Therapy for Cutaneous Melanoma  /p.280

(7.9) Neutron Capture Therapy of Murine Ascites Tumor with Gadolinium-Containing Microcapsules  /p.282

(7.10) Applications of Boronated Anti-AFP MoAb for Targeting to Hepatoma Cells in in vivo Boron Neutron Capture Therapy Model  /p.284

8 Neutron Radiography and Radiation Application

(8.1) Development and Application of Neutron Radiography  /p.288

(8.2) Research on Element Analysis by Quantitative Neutron Radiography  /p.90

(8.3) Neutron Radiography with Kyoto University Research Reactor  /p.292

(8.4) Visualization and Measurement of Fluid Phenomena Using Neutron Radiography and Image Processing Techniques  /p.294

(8.5) Application of Neutron Radiography to the Study of Liquid-Solid Two Phase Flow   /p.296

(8.6) Study on CT and Radiography with 124Sb-Be Neutrons  /p.298

(8.7) Studies on Movement of Ancient Ceramics by Neutron Activation and X-Ray Fluorescence Analysis   /p.300

(8.8) Measurement of Mineral Age by Fission Track Methods and Development of Their Techniques  /p.302

(8.9) Production of Low Energy Positrons for Positron Plasma Formation by Using KURRI-LINAC  /p.304

(8.10) Study of Coherent Radiation at Millimeter Wavelengths Using an L-Band Linear Accelerator  /p.306

(8.11) Extensive Structural Investigations of M(CHO2)22(NH2)2CO; M = (Mg, Mn, Zn, Co and Cd) in View of Two-Dimensional Magnetic Interactions  /p.308

(8.12) The Ordered Structure of Nylon 6/Iodine Complex  /p.309

9 Radioactive Waste Management and Health Physics   /p.123

(9.1) Decommissioning of a Research Reactor -From a View Point of Waste Management-  /p.312

(9.2) Transport Properties of Radionuclides through Reverse Osmosis Membrane  /p.314

(9.3) Fundamental Study on Radionuclide Migration in the G:round -Estimation of the Migration Rate of Fallout 210Pb  /p.316

(9.4) Radiation Effects on Simulated Waste Glass Irradiated Using 10B (n, a) 7 Li Reaction  /p.318

(9.5) Characterization of Compacted Bentonite-Metal Overpack System  /p.320

(9.6) Systems Approaches for Conflicts Resolution and Safety Engineering  /p.322

(9.7) A Modified Three Compartment Model for Tritium Metabolism in Man  /p.324

(9 8) Environmental Health Physics and Radionuclide Behavior  /p.326

(9 9) Rates and Mechanisms of Radioactive Cobalt and Cesium Sorption to Rocks  /p.328

(9.10) Increase of Environmental Gamma Ray Dose Rate Due to 222Rn Progeny in Precipitation  /p.330

(9.11) Unattached Fraction and the Size Distribution of Radon Progeny in Air of the Nuclear Facility  /p.332

(9.12) Basic Studies for Dose Estimation in Thorotrast Patients  /p.334

(9.13) Studies on the Factors Influencing the Time Variations of Environmental Gamma Ray Dose Rate at the Monitoring Station  /p.336

(9.14) Climatological Study of Winds at the Kyoto University Reactor Site  /p.338

(9.15) Neutron Transport Calculation and Its Application to Dosimetry for the Atomic Bombs in Hiroshima and Nagasaki  /p.340

(9.16) Radiological Impact on the Environment Accompanying the Use of Nuclear Energy  /p.342

II OPERATION AND DEVELOPMENT OF FACILITIES

1. Kyoto University Reactor (KUR)  /p.345

2. Experimental Facilities in KUR  /p.346

3. Kyoto University Critical Assembly (KUCA)  /p.350

4. Electron Linear Accelerator (LINAC)  /p.351

5. 60Co γ-Rrays Irradiation Facility  /p.353

6. Thermal-Hydraulic Test Loop  /p.355

7. Facilities for Radioactive Waste Management  /p.357

Ⅲ. RADIATIONPROTECTION AND MONITORING  /p.359

Ⅳ. PUBLICATIONS  /p.363

V. MEETINGS AND SEMINARS  /p.375

VI. BOARDS AND PERSONNEL  /p.377