Title :
H0 injection for the JHP compressor/stretcher ring
Author :
Yamane, I. ; Kitagawa, K.
Author_Institution :
Nat. Lab. for High Energy Phys., Ibaraki, Japan
Abstract :
An H0 injection system is proposed for the JHP compressor-stretcher ring. It is based on two-step stripping using a stripper magnet and a stripping foil. The H0 beam is formed to match the ring optics at the stripping foil. In order to reduce the foil hitting probability to as low as 10%, not only a corner foil, but also phase space painting by varying the bump orbit is proposed. In the latter case, the foil-hitting probability, estimated as the mean ratio of the beam area intercepted by the foil to the beam cross-sectional area weighted by instantaneous proton number, becomes as low as 8.3%
Keywords :
beam handling equipment; beam handling techniques; proton accelerators; H0 injection; JHP compressor-stretcher ring; beam cross-sectional area; bump orbit; corner foil; foil hitting probability; instantaneous proton number; phase space painting; ring optics; stripper magnet; stripping foil; two-step stripping; Painting; Particle beam injection; Particle beams; Stimulated emission;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.72871
