Measurement of relationship between Doppler and self-shielding effects in thorium-232 by 24 keV neutrons.
スポンサーリンク
概要
- 論文の詳細を見る
A relationship between the Doppler and the self-shielding effects has been experimentally studied by measuring the effective average total cross sections of the metal and sintered dioxide of <SUP>232</SUP>Th for 24keV Fe-filtered neutrons. The relationship is a theoretical prediction that the apparent value of the total cross section measured with the neutrons of an adequate energy spread is expressed by a single parameter N/√θ in the high temperature limit, N being the thickness and θ the effective temperature of the samples. The temperature has been varied from room-temperature to 1, 173K and the thickness from about 0.3cm to about 3.8cm. The results of the measurements support the theoretical prediction for both cases of the metal and dioxide samples. The Doppler and the self-shielding effects for the metal and dioxide agree within the experimental errors though some dependence on atomic binding was expected.
- 一般社団法人 日本原子力学会の論文
著者
-
Fujita Yoshiaki
Research Reactor Institute Kyoto University
-
BRUGGER Robert
Research Reactor Facility and Department of Nuclear Engineering, the University of Missouri
-
ALGER Don
Research Reactor Facility and Department of Nuclear Engineering, the University of Missouri
-
MILLER William
Research Reactor Facility and Department of Nuclear Engineering, the University of Missouri
関連論文
- Measurements of Neutron-induced Fission Cross Section of Protactinium-231 from 0. 1eV to 10keV with Lead Slowing-down Spectrometer and at 0. 0253eV with Thermal Neutron Facility
- Measurements of Neutron-induced Fission Cross Section of Americium-243 from Thermal Neutron Energy to 15keV Using Lead Slowing-down Spectrometer and Thermal Neutron Facility
- Projected-Range Straggling of 4- to 24-MeV Electrons in Elemental Materials
- Measurement of Neutron Capture Cross Section of ^Np by Linac Time-of-Flight Method and with Linac-driven Lead Slowing-down Spectrometer
- Application of BGO Scintillators to Absolute Measurement of Neutron Capture Cross Sections between 0. 01 eV and 10 eV
- Measurement of nuclear inelastic scattering cross section of thorium-232 for 144 keV Si-filtered neurons.
- Measurement of neutron capture cross sections with Fe-filtered beam.
- Precision Neutron Total Cross Section Measurements Near 24 keV
- Measurement of relationship between Doppler and self-shielding effects in thorium-232 by 24 keV neutrons.
- Measurement of Fission Cross Section of Neptunium-237 in Resonance Region with Electron Linac-Driven Lead Spectrometer.
- Neutron capture cross section measurements of Nb-93, I-127, Ho-165, Ta-181 and U-238 between 3.2 and 80keV.
- A Method of Reactor Physics Measurement with the Use of an Expanded System
- Theoretical Analysis on Time-Dependent Energy Spectra of Neutrons in a Small Graphite Assembly
- Measurements of Time Dependent Energy Spectra of Neutrons in a Small Graphite Assembly
- Measurement of neutron capture cross section of thorium-232 from 1 keV to 408 keV.
- Measurement of neutron total cross section of silicon at 146- and 53.5-keV windows.
- Measurements of time-dependent neutron spectra from low-temperature ice block.
- Calculational study of time-dependent neutron spectra in ice at low temperature.