Progress of 400 MeV H stripping to protons by using lasers at J-PARC RCS

Saha, P. K.; 原田 寛之; 金正 倫計; 三浦 昭彦; 山根 功*

no journal, , 

In J-PARC, we are studying a new method of Hstripping to protons by using only lasers. The aims are to avoid extremely high residual radiation caused by the foil scattering beam loss during multi-turn H charge exchange injection in the RCS and also to overcome the foil lifetime issue. The first step of total three steps of our method is a neutralization of the H by a laser, which is being extensively studied at Fermi National Accelerator Laboratory. In the present collaboration meeting, a detail plan for the research and development studies of laser manipulation of the Hbeam will be decided. For J-PARC, the progress and strategy of 400 MeV H laser stripping experiment, construction and application of non-destructive H beam diagonostic system, and other applications of laser for H beam manipulations for high intensity beam operation will be intensively discussed.