Compact neutron source development at LBNL

Jani Reijonen; Tak Pui Lou; Bryan Tolmachoff; Ka-Ngo Leung

doi:10.1117/12.451268

21 December 2001 Compact neutron source development at LBNL

Jani Reijonen, Tak Pui Lou, Bryan Tolmachoff, Ka-Ngo Leung

Proceedings Volume 4510, Charged Particle Detection, Diagnostics, and Imaging; (2001) https://doi.org/10.1117/12.451268
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

A compact neutron generator based on D-D or D-T fusion reactions is being developed at the Lawrence Berkeley National laboratory. The deuterium or tritium ions are produced in a radio-frequency (RF) driven multicusp plasma source. Seven beamlets are extracted and are accelerated to energy of 100 keV by means of a three-electrode electrostatic accelerator column. The ion beam then impinges on a titanium coated copper target where either the 2.4 MeV D-D or 13 MeV D-T neutrons are generated by fusion reaction. The development of the neutron tube is divided into three phases. First, the accelerator column is operated at hydrogen beam intensity of 15 mA. Second phase consists of deuterium beam runs at pulsed, low duty cycle 150 mA operation. The third phase consists of deuterium or tritium operation at 1.5 A beam current. Phase one is completed and the results of hydrogen beam testing are discussed. Low duty cycle 150 mA deuterium operation is being investigated. Neutron flux will be measured. Finally the phase three operation and the advance neutron generator designs are described.

Citation Download Citation

Jani Reijonen, Tak Pui Lou, Bryan Tolmachoff, and Ka-Ngo Leung "Compact neutron source development at LBNL", Proc. SPIE 4510, Charged Particle Detection, Diagnostics, and Imaging, (21 December 2001); https://doi.org/10.1117/12.451268

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