Author: Welton, R.F.
Paper Title Page
THPS026 Surface Plasma H Ion Source with Saddle RF Antenna Plasma Generator 3475
 
  • V.G. Dudnikov, R.P. Johnson
    Muons, Inc, Batavia, USA
  • S.N. Murray, T.R. Pennisi, M. Santana, M.P. Stockli, R.F. Welton
    ORNL, Oak Ridge, Tennessee, USA
 
  Funding: *Work supported in part by US DOE Contract DE-AC05-00OR22725 and by STTR grant DE-SC0002690.
In this pro­ject is de­vel­oped a pro­to­type RF H sur­face plas­ma source (SPS) with sad­dle (SA) RF an­ten­na which will pro­vide bet­ter power ef­fi­cien­cy for high pulsed and av­er­age cur­rent, high­er bright­ness with longer life­time and high­er re­li­a­bil­i­ty. Sev­er­al ver­sions of new plas­ma gen­er­a­tors with a small AlN test cham­ber and dif­fer­ent an­ten­nas and mag­net­ic field con­fig­u­ra­tions were test­ed in the SNS ion source Test Stand. A pro­to­type SA SPS was in­stalled in the Test Stand with a larg­er, nor­mal-sized SNS AlN cham­ber that achieved un­an­a­lyzed peak cur­rents of up to 67 mA with an ap­par­ent ef­fi­cien­cy of 1.6 mA/kW. Con­trol ex­per­i­ments with H beam pro­duced by SNS SPS with in­ter­nal and ex­ter­nal an­ten­nas were con­duct­ed. A new ver­sion of the RF trig­ger­ing plas­ma source (TPS) has been de­signed. A Sad­dle an­ten­na SPS with water cool­ing is being fab­ri­cat­ed for high duty fac­tor test­ing.