The development of a unique long cylindrical neutron source for broad area neutron activation analysis (NAA) is presented. This source uses inertial electrostatic confinement (IEC) to produce 2.54 MeV D-D or 14.1 MeV D-T fusion neutrons for applications ranging from security inspection stations to driven-subcritical research assemblies. This design uses a biased grid to initial in a unique “star” mode plasma discharge forming beam-background gas (target) fusion. In spherical geometry it routinely produces ∼108 2.54-MeV D-D fusion neutrons/s at steady-state. Pulsed operation has achieved up to 109 neutrons/sec. (equivalent to 1011 n/s using D-T fill). Indeed, a version of the spherical IEC has been produced commercially as a portable neutron source for industrial NAA applications. Recently a cylindrical (2-dimensional version) design based on the spherical unit has been developed. This provides a unique long “line-like” neutron source for use in broad area NAA. This IEC forms ion beams in the volume between the grounded wall and the concentric cylindrical grid. Those beams converge in the center, much like in the star mode spherical IEC. To date, neutron yields of up to 108 D-D neutrons/sec have been achieved with the cylindrical device. A sealed-off unit using getters for gas storage-control has been developed to simplify use in practical applications such as a luggage inspection station. Such units would be filled with deuterium at a central fueling facility, and sent out to the field. After extended operation, they would be returned to this facility for refilling.
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18th International Conference on Nuclear Engineering
May 17–21, 2010
Xi’an, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-4934-7
PROCEEDINGS PAPER
Cylindrical IEC Fusion Neutron Source for Broad Area NAA
George H. Miley,
George H. Miley
University of Illinois, Urbana, IL
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Hiromu Momota,
Hiromu Momota
University of Illinois, Urbana, IL
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Guilherme Amadio,
Guilherme Amadio
University of Illinois, Urbana, IL
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George Chen,
George Chen
University of Illinois, Urbana, IL
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William Matisiak,
William Matisiak
University of Illinois, Urbana, IL
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Paul Keutelian
Paul Keutelian
University of Illinois, Urbana, IL
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George H. Miley
University of Illinois, Urbana, IL
Hiromu Momota
University of Illinois, Urbana, IL
Hugo Leon
University of Illinois, Urbana, IL
Ben Ulmen
University of Illinois, Urbana, IL
Guilherme Amadio
University of Illinois, Urbana, IL
Atanu Khan
University of Illinois, Urbana, IL
George Chen
University of Illinois, Urbana, IL
William Matisiak
University of Illinois, Urbana, IL
Ali Azeem
University of Illinois, Urbana, IL
Paul Keutelian
University of Illinois, Urbana, IL
Paper No:
ICONE18-30368, pp. 659-665; 7 pages
Published Online:
April 8, 2011
Citation
Miley, GH, Momota, H, Leon, H, Ulmen, B, Amadio, G, Khan, A, Chen, G, Matisiak, W, Azeem, A, & Keutelian, P. "Cylindrical IEC Fusion Neutron Source for Broad Area NAA." Proceedings of the 18th International Conference on Nuclear Engineering. 18th International Conference on Nuclear Engineering: Volume 6. Xi’an, China. May 17–21, 2010. pp. 659-665. ASME. https://doi.org/10.1115/ICONE18-30368
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