Intense proton beam current measurement via prompt gamma rays from nuclear reactions.
The current of an intense, pulsed proton beam is experimentally determined by monitoring prompt gamma rays from nuclear reactions induced in a suitable target. Relevant data are given on the reactions employed including (7)Li(p,gamma) (8)Be, (19)F(p,alphagamma) (16)O, and (12)C(p,gamma) (13)N so that absolute currents can be determined. This method avoids the complication of target blowoff and the need for attenuating screens when applied to high current density beams.
Golden
J
J
Naval Research Laboratory, Washington, DC 20375, USA.
Mahaffey
R A
RA
Pasour
J A
JA
Young
F C
FC
Kapetanakos
C A
CA