An optimization study for shielding design of D-D and D-T neutron generators
Neutron generators (NG) are being increasingly used in various industrial and research areas such as neutron activation analysis, neutron radiography, and neutron capture therapy. In such applications of neutron generators, compactness is one of the most important issues. Since a neutron source is g...
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Published in | Fusion engineering and design Vol. 146; pp. 531 - 534 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Amsterdam
Elsevier B.V
01.09.2019
Elsevier Science Ltd |
Subjects | |
Online Access | Get full text |
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Abstract | Neutron generators (NG) are being increasingly used in various industrial and research areas such as neutron activation analysis, neutron radiography, and neutron capture therapy. In such applications of neutron generators, compactness is one of the most important issues. Since a neutron source is generated by deuterium-deuterium (D-D) or deuterium-tritium (D-T) fusion reaction, a relatively thick shield for both fast neutrons and related photons is usually required. In this study, optimization of shielding designs for D-D and D-T neutron generators were investigated by adopting appropriate moderator and shielding materials. Based on the optimized moderator and shield thicknesses, the final dimensions of neutron generators were derived for various source strengths of D-D and D-T neutron conditions. Considering conventional condition of a container, we concluded that a 1010 n/sec D-D source and a 108 n/sec D-T source could be a portable NG. |
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AbstractList | Neutron generators (NG) are being increasingly used in various industrial and research areas such as neutron activation analysis, neutron radiography, and neutron capture therapy. In such applications of neutron generators, compactness is one of the most important issues. Since a neutron source is generated by deuterium-deuterium (D-D) or deuterium-tritium (D-T) fusion reaction, a relatively thick shield for both fast neutrons and related photons is usually required. In this study, optimization of shielding designs for D-D and D-T neutron generators were investigated by adopting appropriate moderator and shielding materials. Based on the optimized moderator and shield thicknesses, the final dimensions of neutron generators were derived for various source strengths of D-D and D-T neutron conditions. Considering conventional condition of a container, we concluded that a 1010 n/sec D-D source and a 108 n/sec D-T source could be a portable NG. |
Author | Yun, Sunghwan Lee, Dong Won Jin, Hyung Gon Lee, Cheol Woo Chang, Doo-Hee Kim, Sun-Ho Shin, Chang Wook Jung, Bongki |
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Keywords | D-T neutron source D-D neutron source Neutron generator Neutron shielding analysis Portable neutron source |
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References | ICRP (bib0020) 1990; 21 IAEA (bib0010) 2012 Uhlar, Kadulova, Alexa, Pistora (bib0025) 2014; 300 IAEA (bib0005) 2013 Pelowitz (bib0015) 2013 Fantidis (bib0030) 2015; 13 Uhlar (10.1016/j.fusengdes.2019.01.014_bib0025) 2014; 300 IAEA (10.1016/j.fusengdes.2019.01.014_bib0010) 2012 ICRP (10.1016/j.fusengdes.2019.01.014_bib0020) 1990; 21 Fantidis (10.1016/j.fusengdes.2019.01.014_bib0030) 2015; 13 IAEA (10.1016/j.fusengdes.2019.01.014_bib0005) 2013 Pelowitz (10.1016/j.fusengdes.2019.01.014_bib0015) 2013 |
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SubjectTerms | D-D neutron source D-T neutron source Design optimization Deuterium Fast neutrons Generators Neutron activation analysis Neutron generator Neutron radiography Neutron shielding analysis Neutrons Nuclear capture Portable neutron source Radiography Shielding Tritium |
Title | An optimization study for shielding design of D-D and D-T neutron generators |
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