Conceptual design of multi-targets for accelerator-driven system experiments with 100-MeV protons

2013 ◽  
Vol 54 ◽  
pp. 162-166 ◽  
Author(s):  
Yoshiyuki Takahashi ◽  
Tetsushi Azuma ◽  
Teiji Nishio ◽  
Takahiro Yagi ◽  
Cheol Ho Pyeon ◽  
...  
2017 ◽  
Vol 105 ◽  
pp. 346-354 ◽  
Author(s):  
Cheol Ho Pyeon ◽  
Masao Yamanaka ◽  
Tomohiro Endo ◽  
Willem Fredrik G. van Rooijen ◽  
Go Chiba

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Jae-Yong Lim ◽  
Cheol Ho Pyeon ◽  
Takahiro Yagi ◽  
Tsuyoshi Misawa

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.


Author(s):  
Cheol Ho Pyeon

AbstractAt the Kyoto University Critical Assembly (KUCA), the accelerator-driven system (ADS) is composed of a solid-moderated and solid-reflected core (A-core) and a pulsed-neutron generator (14 MeV neutrons) or the fixed-filed alternating gradient (FFAG) accelerator (100 MeV protons). At KUCA, two external neutron sources, including 14 MeV neutrons and 100 MeV protons, are separately injected into the A-core, and employed for carrying out the ADS experiments. With the combined use of the A-core and two external neutron sources, basic and feasibility studies of ADS have been engaged in the examination of neutronics of ADS, through the measurements of statics and kinetics parameters of reactor physics, including subcritical multiplication factor, subcriticality, prompt neutron decay constant, effective delayed neutron fraction, neutron spectrum, and reaction rates.


2010 ◽  
Vol 47 (10) ◽  
pp. 953-962 ◽  
Author(s):  
Takanori SUGAWARA ◽  
Kenji NISHIHARA ◽  
Hironari OBAYASHI ◽  
Yuji KURATA ◽  
Hiroyuki OIGAWA

2017 ◽  
Vol 55 (2) ◽  
pp. 190-198 ◽  
Author(s):  
Cheol Ho Pyeon ◽  
Thanh Mai Vu ◽  
Masao Yamanaka ◽  
Takanori Sugawara ◽  
Hiroki Iwamoto ◽  
...  

2015 ◽  
Vol 192 (2) ◽  
pp. 181-190 ◽  
Author(s):  
Cheol Ho Pyeon ◽  
Hiroyuki Nakano ◽  
Masao Yamanaka ◽  
Takahiro Yagi ◽  
Tsuyoshi Misawa

2018 ◽  
Vol 331 ◽  
pp. 11-23 ◽  
Author(s):  
Takanori Sugawara ◽  
Yuta Eguchi ◽  
Hironari Obayashi ◽  
Hiroki Iwamoto ◽  
Kazufumi Tsujimoto

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