scholarly journals Neutron Moderation 1 (Research Reactor as Neutron Source)

hamon ◽  
2018 ◽  
Vol 28 (2) ◽  
pp. 99-102
Author(s):  
Masaji Arai
Keyword(s):  
Neutron Source ◽  
Research Reactor ◽  
Neutron Moderation

scholarly journals OPTIMIZATION OF COLLIMATOR APERTURE GEOMETRY FOR BNCT KARTINI RESEARCH REACTOR USING MCNPX

2019 ◽  
Vol 21 (1) ◽  
pp. 9
Author(s):  
Ramadhan Valiant Gill S.B. ◽  
Yohannes Sardjono
Keyword(s):  
Neutron Source ◽  
Research Reactor ◽  
Irradiation Time ◽  
Base Point ◽  
Cell Diameter ◽  
Cylindrical Shape ◽  
Trace Distance ◽  
Optimal Output ◽  
Boron Neutron Capture ◽  
High Ionization

Boron Neutron Capture Therapy (BNCT) is one of the promising cancer therapy modalities due to its selectivity which only kills the cancer cells and does not damage healthy cells around cancer. In principle, BNCT utilizes the high ionization properties of alpha (4He) and lithium (7Li) particles derived from the reaction between epithermal and boron-10 neutrons (10B + n → 7Li + 4He) in cells, where trace distance of alpha and lithium particles is equivalent with cell diameter. The neutron source used in BNCT can come from a reactor, as a condition for conducting BNCT therapy tests, there are five standard parameters that must be met for a neutron source to be used as a source, and the standards come from IAEA. This research is based on simulation using the MCNPX program which aims to optimize IAEA parameters that have been obtained in previous studies by changing the shape of the collimator geometry from cone shape to cylinder with variations diameter from 3, 5 and 10 cm and also the simulation divided into two schemes namely first moderator Al is placed in a position 9.5 cm behind the collimator and the second is the moderator Al is pressed into the base point of the aperture in the collimator. In this work, neutrons originated from Yogyakarta Kartini research reactor have the energy range in the continuous form. The results of the optimization on each scheme of the collimator are compared with the outputs that have been obtained in previous studies where the aperture of the collimator is in the cone shape. The most optimal output obtained from the results is a collimator with a diameter of 5 cm in the second scheme where the results of IAEA parameters that are produced (n/cm2 s) = 2.18E+8, / (Gy-cm2/n) = 6.69E-13, / (Gy-cm2/n) = 2.44E-13,  = 4.03E-01, and J/ = 6.31E-01. These results can still be used for BNCT experiments but need a long irradiation time and when compared to previous studies, the output of the collimator with the diameter of 5 cm is more optimal.Keywords: BNCT, Collimator, IAEA Parameters, MCNPX, Cylindrical shape 

Development of a neutron source for imaging at the electron linac facility in Kyoto University Research Reactor Institute

2018 ◽  
Vol 551 ◽  
pp. 488-491 ◽  
Author(s):  
Yoshiyuki Takahashi ◽  
Yoshiaki Kiyanagi ◽  
Kenichi Watanabe ◽  
Akira Uritani ◽  
Tadafumi Sano ◽  
...  
Keyword(s):  
Neutron Source ◽  
Research Reactor ◽  
University Research ◽  
Electron Linac ◽  
Reactor Institute

The Advanced Neutron Source

1989 ◽  
Vol 166 ◽  
Author(s):  
John B. Hayter
Keyword(s):  
Steady State ◽  
Neutron Flux ◽  
Thermal Neutron ◽  
Neutron Source ◽  
Thermal Neutron Flux ◽  
Research Reactor ◽  
Experimental Facility ◽  
Oak Ridge ◽  
State Research

ABSTRACTThe Advanced Neutron Source (ANS) is a new user experimental facility planned to be operational at Oak Ridge in the late 1990's. The centerpiece of the ANS will be a steady-state research reactor of unprecedented thermal neutron flux (φth ≍ 9·1019 m−2·s−1) accompanied by extensive and comprehensive equipment and facilities for neutron-based research.

Liquid hydrogen cold neutron source in operation. at the Budapest Research Reactor

2002 ◽  
Vol 74 (0) ◽  
pp. s240-s242 ◽  
Author(s):  
L. Rosta ◽  
T. Gr�sz ◽  
T. Hargitai
Keyword(s):  
Neutron Source ◽  
Research Reactor ◽  
Cold Neutron ◽  
Liquid Hydrogen ◽  
Cold Neutron Source

A feasibility study of the Tehran research reactor as a neutron source for BNCT

2014 ◽  
Vol 90 ◽  
pp. 132-137 ◽  
Author(s):  
Yaser Kasesaz ◽  
Hossein Khalafi ◽  
Faezeh Rahmani ◽  
Arsalan Ezati ◽  
Mehdi Keyvani ◽  
...  
Keyword(s):  
Neutron Source ◽  
Feasibility Study ◽  
Research Reactor ◽  
Tehran Research Reactor
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