Real-time subcriticality monitoring system based on a highly sensitive optical fiber detector in an accelerator-driven system at the Kyoto University Critical Assembly

2019 ◽  
Vol 57 (2) ◽  
pp. 136-144 ◽  
Author(s):  
Kenichi Watanabe ◽  
Masao Yamanaka ◽  
Tomohiro Endo ◽  
Cheol Ho Pyeon
Keyword(s):  
Optical Fiber ◽  
Real Time ◽  
Monitoring System ◽  
Critical Assembly ◽  
Highly Sensitive ◽  
Driven System ◽  
Accelerator Driven System

Experimental benchmarks on kinetic parameters in accelerator-driven system with 100 MeV protons at Kyoto University Critical Assembly

2017 ◽  
Vol 105 ◽  
pp. 346-354 ◽  
Author(s):  
Cheol Ho Pyeon ◽  
Masao Yamanaka ◽  
Tomohiro Endo ◽  
Willem Fredrik G. van Rooijen ◽  
Go Chiba
Keyword(s):  
Kinetic Parameters ◽  
Critical Assembly ◽  
Driven System ◽  
Accelerator Driven System ◽  
Mev Protons

Application of Optical Fiber Sensing Real-Time Monitoring Technology Using in Ripley Landslide

2014 ◽  
Vol 610 ◽  
pp. 199-204 ◽  
Author(s):  
Xiao Fei Zhang ◽  
Zhong Hu Lv ◽  
Xian Wei Meng ◽  
Fan Jiang ◽  
Qing Zhang
Keyword(s):  
Optical Fiber ◽  
Real Time ◽  
Monitoring System ◽  
Landslide Monitoring ◽  
Real Time Monitoring ◽  
The Real ◽  
Fiber Sensing ◽  
Sensing Technology ◽  
Database Technology ◽  
Optical Fiber Sensing

Nowadays, fiber optic technology has been used in sensing. Using the distributed optical fiber sensing technology in the landslide monitoring, the linear strain distribution information of the whole landslide can be obtained, and adopting the Fiber Bragg Grating sensing technology in the landslide monitoring, the key pot strain and displacement information can be gained. This paper firstly reviews the basic principle of optical fiber sensing, and then describes the optical fiber sensing real-time monitoring system by combining with FBG technology, BOTDR technology, database technology and web server technology, and finally presents a field application experiment using the real-time monitoring system in Ripley landslide in Canada. The experiment indicated that the real-time monitoring system can be realized real-time monitoring of FBG and BOTDR for landslide, and the experience can be extended to other landslide.

First nuclear transmutation of 237Np and 241Am by accelerator-driven system at Kyoto University Critical Assembly

2019 ◽  
Vol 56 (8) ◽  
pp. 684-689 ◽  
Author(s):  
Cheol Ho Pyeon ◽  
Masao Yamanaka ◽  
Akito Oizumi ◽  
Masahiro Fukushima ◽  
Go Chiba ◽  
...  
Keyword(s):  
Critical Assembly ◽  
Nuclear Transmutation ◽  
Driven System ◽  
Accelerator Driven System

Static and Kinetic Experiments on Accelerator-Driven System with 14MeV Neutrons in Kyoto University Critical Assembly

2008 ◽  
Vol 45 (11) ◽  
pp. 1171-1182 ◽  
Author(s):  
Cheol Ho PYEON ◽  
Morgan HERVAULT ◽  
Tsuyoshi MISAWA ◽  
Hironobu UNESAKI ◽  
Tomohiko IWASAKI ◽  
...  
Keyword(s):  
Critical Assembly ◽  
Driven System ◽  
Accelerator Driven System

Reaction Rate Analyses for an Accelerator-Driven System with 14MeV Neutrons in the Kyoto University Critical Assembly

2009 ◽  
Vol 46 (10) ◽  
pp. 965-972 ◽  
Author(s):  
Cheol Ho PYEON ◽  
Hiroshi SHIGA ◽  
Tsuyoshi MISAWA ◽  
Tomohiko IWASAKI ◽  
Seiji SHIROYA
Keyword(s):  
Reaction Rate ◽  
Critical Assembly ◽  
Driven System ◽  
Accelerator Driven System

scholarly journals Subcritical Multiplication Parameters of the Accelerator-Driven System with 100 MeV Protons at the Kyoto University Critical Assembly

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Jae-Yong Lim ◽  
Cheol Ho Pyeon ◽  
Takahiro Yagi ◽  
Tsuyoshi Misawa
Keyword(s):  
Reaction Rate ◽  
Reaction Rates ◽  
Relative Difference ◽  
Critical Assembly ◽  
The Core ◽  
Driven System ◽  
Accelerator Driven System ◽  
Special Mention ◽  
Basic Experiments ◽  
Mev Protons

Basic experiments on the accelerator-driven system (ADS) at the Kyoto University Critical Assembly are carried out by combining a solid-moderated and -reflected core with the fixed-field alternating gradient accelerator. The reaction rates are measured by the foil activation method to obtain the subcritical multiplication parameters. The numerical calculations are conducted with the use of MCNPX and JENDL/HE-2007 to evaluate the reaction rates of activation foils set in the core region and at the location of the target. Here, a comparison between the measured and calculated eigenvalues reveals a relative difference of around 10% in C/E values. A special mention is made of the fact that the reaction rate analyses in the subcritical systems demonstrate apparently the actual effect of moving the tungsten target into the core on neutron multiplication. A series of further ADS experiments with 100 MeV protons needs to be carried out to evaluate the accuracy of subcritical multiplication parameters.

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