Thermal neutron standard field with a Maxwellian distribution using the KUR heavy water facility

1978 ◽  
Vol 148 (3) ◽  
pp. 535-541 ◽  
Author(s):  
Keiji Kanda ◽  
Keiji Kobayashi ◽  
Sunao Okamoto ◽  
Toshikazu Shibata
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Maxwellian Distribution ◽  
Standard Field

Thermal-Neutron Diffusion in Light and Heavy Water

1968 ◽  
Vol 33 (2) ◽  
pp. 209-217 ◽  
Author(s):  
P. B. Parks ◽  
D. J. Pellarin ◽  
N. H. Prochnow ◽  
N. P. Baumann
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Neutron Diffusion

Reevaluation of Thermal Neutron Field of the KUR Heavy Water Facility for Biomedical Uses (Optimization of Bismuth, Heavy Water and Graphite Layers)

1992 ◽  
pp. 101-105 ◽  
Author(s):  
Yoshinori Sakurai ◽  
Shusuke Fujihara ◽  
Tooru Kobayashi ◽  
Keiji Kanda
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Neutron Field

Validation of ENDF/B-VIII thermal neutron scattering data of heavy water by differential cross section measurements at various temperatures

2020 ◽  
Vol 135 ◽  
pp. 106932 ◽  
Author(s):  
G. Li ◽  
G. Bentoumi ◽  
K. Hartling ◽  
I. Molnar ◽  
C. Neggers ◽  
...  
Keyword(s):  
Differential Cross Section ◽  
Neutron Scattering ◽  
Thermal Neutron ◽  
Cross Section ◽  
Heavy Water ◽  
Differential Cross ◽  
Scattering Data ◽  
Thermal Neutron Scattering

Measurement and Analysis of Capture Reaction Rate of237Np in Various Thermal Neutron Fields by Critical Assembly and Heavy Water Thermal Neutron Facility of Kyoto University

2000 ◽  
Vol 136 (3) ◽  
pp. 321-339 ◽  
Author(s):  
Tomohiko Iwasaki ◽  
Toshimitu Horiuchi ◽  
Daisuke Fujiwara ◽  
Hironobu Unesaki ◽  
Seiji Shiroya ◽  
...  
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Reaction Rate ◽  
Critical Assembly ◽  
Capture Reaction ◽  
Measurement And Analysis ◽  
Neutron Facility

Sensitivity Degradation Characteristics of Incore Neutron Detector for Heavy Water Reactor, Fugen NPP

2002 ◽  
Author(s):  
Tsuyoshi Okawa ◽  
Naoyuki Yomori
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Power Distribution ◽  
Neutron Detector ◽  
Nuclear Power ◽  
Operating Cost ◽  
Water Reactor ◽  
Mox Fuel ◽  
Heavy Water Reactor ◽  
Test Reactor

Fugen nuclear power plant is a 165MWe, heavy water-moderated, boiling light water-cooled, pressure tube-type reactor developed by JNC, which is the world’s first thermal neutron power reactor to utilize mainly Uranium and Plutonium mixed oxide (MOX) fuel. Fugen has been loaded a total of 726 MOX fuel assemblies since the initial core in 1978. Each incore neutron detector assembly of Fugen composed of four Local Power Monitors (LPM) is located at sixteen positions in the area of heavy water moderator in the core and monitors its power distribution during operation. The thermal neutron flux of Fugen is relatively higher than that of Boiling Water Reactor (BWR), therefore LPM, which is comprised of a fission chamber, degrades more quickly than that of BWR. An Improved Long-life LPM (LLPM) pasted inner surface wall of the chamber with 234U/235U at a ratio of 4 to 1 had been developed through the irradiation test at Japan Material Test Reactor (JMTR). The 234U is converted to 235U with absorption of neutron, and compensates the consumption of 235U. LPM has been loaded to the initial core of Fugen since 1978. JNC had evaluated its sensitivity degradation characteristics through the accumulated irradiation data and the parametric survey for 234σa and 235σa. Based on the experience of evaluation for sensitivity degradation, JNC has applied shuffling operation of LPM assemblies during an annual inspection outage to reduce the operating cost. This operation realizes the reduction of replacing number of LPM assemblies and volume of radioactive waste. This paper describes the sensitivity degradation characteristics of incore neutron detector and the degradation evaluation methods established in Fugen.

scholarly journals Thermal neutron diffusion parameters of heavy water

1963 ◽  
Vol 17 (9) ◽  
pp. 411-415 ◽  
Author(s):  
G. Kussmaul ◽  
H. Meister
Keyword(s):  
Thermal Neutron ◽  
Heavy Water ◽  
Neutron Diffusion ◽  
Diffusion Parameters

scholarly journals New evaluation of thermal neutron scattering libraries for light and heavy water

2017 ◽  
Vol 146 ◽  
pp. 13001 ◽  
Author(s):  
Jose Ignacio Marquez Damian ◽  
Jose Rolando Granada ◽  
Florencia Cantargi ◽  
Danila Roubtsov
Keyword(s):  
Neutron Scattering ◽  
Thermal Neutron ◽  
Heavy Water ◽  
Thermal Neutron Scattering

CAB models for water: A new evaluation of the thermal neutron scattering laws for light and heavy water in ENDF-6 format

2014 ◽  
Vol 65 ◽  
pp. 280-289 ◽  
Author(s):  
J.I. Márquez Damián ◽  
J.R. Granada ◽  
D.C. Malaspina
Keyword(s):  
Neutron Scattering ◽  
Thermal Neutron ◽  
Heavy Water ◽  
Thermal Neutron Scattering

scholarly journals THERMAL NEUTRON SCATTERING CROSS-SECTION MEASUREMENTS OF HEAVY WATER

2016 ◽  
pp. 1-7
Author(s):  
Gang Li ◽  
Ghaouti Bentoumi ◽  
Zin Tun ◽  
Liqian Li ◽  
Bhaskar Sur
Keyword(s):  
Neutron Scattering ◽  
Thermal Neutron ◽  
Cross Section ◽  
Heavy Water ◽  
Scattering Cross Section ◽  
Scattering Cross ◽  
Thermal Neutron Scattering

scholarly journals Development of a neutron standard field using a heavy-water moderated 252Cf source at NMIJ-AIST

2014 ◽  
Vol 4 ◽  
pp. 400-403 ◽  
Author(s):  
Akihiko Masuda ◽  
Hideki Harano ◽  
Tetsuro Matsumoto ◽  
Jun Nishiyama ◽  
Katsuhisa Kudo
Keyword(s):  
Heavy Water ◽  
Standard Field ◽  
252Cf Source
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