| P. Ausset, S. Bousson, D. Gardes, A.C. Mueller, B. Pottin, I.P.N., 91406, Orsay, France,
R. Gobin, CEASaclay, 91191, Gif sur Yvette, France,
G. Belyaev, I. Roudskoy, ITEP, Moscow, Russia |
High power proton accelerators (H.P.P.A.) projects are being proposed in fundamental and applied physics research: radioactive beam production, neutron sources, neutrino factories and transmutation. Among the parameters needed to be measured, the transverse beam profiles are the most difficult to obtain. A very attractive
phenomenon is the production of visible light by the proton beam-background or additional gas interaction. Transverse beam profiles of the ¡°S.I.L.H.I.¡± E.C.R. source (95 keV, 100 mA) have been measured. The Doppler effect has been brought into operation to determine the energy and the spatial extension of the different components of the beam (H+, H2+, H3+). Wire scanners are also usable under low duty factor
pulsed beam operation. Experiments have been conducted on tungsten, tantalum, titanium and carbon wires intercepting a 5 MeV proton beam delivered by the TANDEM accelerator of the Institut de Physique Nucl¨¦aire d¡¯Orsay. Transverse beam profiles have been deduced from: back-scattered protons, X and ¦Ã emission; and electric current collected in the wires. |
