Title :
Development of an Intense Pulsed Characteristic γ-Ray Source for Active Interrogation of Special Nuclear Material
Author :
Schumer, J.W. ; Commisso, R.J. ; Hinshelwood, D.D. ; Mosher, D. ; Murphy, D.P. ; Ottinger, P.F. ; Phipps, D.G. ; Stephanakis, S.J. ; Weber, B.V. ; Young, F.C. ; Cooperstein, G. ; Blackburn, B.W. ; Jones, J.L. ; Johnson, J. ; Valles, N.O.
Author_Institution :
Naval Res. Lab., Washington
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
An intense source of characteristic gamma-rays is developed as a potential probe to identify special nuclear material. A pinch-reflex ion diode is operated on the Gamble II pulsed power generator to produce proton beams with 270-kA peak current and 2.0-MV peak voltage. These beams bombard a PTFE (Teflon) target to produce characteristic gamma-rays by the 19F(p,alphagamma)16O reaction with energies of 6.13, 6.92, and 7.12 MeV and with an intensity of 3.1x1011 gamma-rays into 4pi in a single 50-ns duration pulse. Simple ballistic transport is used to transport the proton beam one meter so that the gamma-ray signal is separated in time and space from the diode bremsstrahlung pulse.
Keywords :
gamma-ray production; 19F(p,alpha+gamma)16O; Gamble II pulsed power generator; PTFE target; active interrogation; ballistic transport; intense pulsed characteristic gamma-ray source; pinch-reflex ion diode; special nuclear material; Cathodes; Conductors; Delay; Diodes; Neutrons; Nuclear and plasma sciences; Particle beams; Power generation; Pulse generation; Radiation detectors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4437187
