Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8210101 | Applied Radiation and Isotopes | 2014 | 37 Pages |
Abstract
A new deuterium-deuterium (D-D) neutron generator has been developed by Adelphi Technology for prompt gamma neutron activation analysis (PGNAA), neutron activation analysis (NAA), and fast neutron radiography. The generator makes an excellent fast, intermediate, and thermal neutron source for laboratories and industrial applications that require the safe production of neutrons, a small footprint, low cost, and small regulatory burden. The generator has three major components: a Radio Frequency Induction Ion Source, a Secondary Electron Shroud, and a Diode Accelerator Structure and Target. Monoenergetic neutrons (2.5Â MeV) are produced with a yield of 1010Â n/s using 25-50Â mA of deuterium ion beam current and 125Â kV of acceleration voltage. The present study characterizes the performance of the neutron generator with respect to neutron yield, neutron production efficiency, and the ionic current as a function of the acceleration voltage at various RF powers. In addition the Monte Carlo N-Particle Transport (MCNP) simulation code was used to optimize the setup with respect to thermal flux and radiation protection.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
K. Bergaoui, N. Reguigui, C.K. Gary, C. Brown, J.T. Cremer, J.H. Vainionpaa, M.A. Piestrup,