Intense Proton Beam Current Measurement via Prompt Gamma Rays from Nuclear Reactions.

摘要

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 is given on the reactions employed including 7Li(p, gamma)8Be, 19F(p, alpha gamma)16O, and 12C(p, gamma)13N so that absolute currents can be determined. This method avoids the complication of target blow-off and the need for attenuating screens when applied to high current density beams. (Author)