| Αρχική Σελίδα > Review of scaled Penning $H^{-}$ surface plasma source with slit emitters for high duty factor linacs |
| Article | |
| Title | Review of scaled Penning $H^{-}$ surface plasma source with slit emitters for high duty factor linacs |
| Author(s) | Sherman, J D ; Ferdinand, R R ; Gobin, R ; Ingalls, W B ; Rouleau, G ; Sidlow, R ; Smith, H V ; Thomason, J |
| Affiliation | (Los Alamos Nat Lab, NM, USA) |
| Publication | 2002 |
| In: | 8th European Particle Accelerator Conference, Paris, France, 3 - 7 Jun 2002, pp.284-6 |
| Subject category | Accelerators and Storage Rings |
| Abstract | The Penning H/sup -/ surface plasma source (SPS) is used at Rutherford Appleton Laboratory (RAL) to provide required H/sup -/ beams for charge-exchange injection into the 800-MeV proton synchrotron on the ISIS spallation neutron source. The RAL source is based on the first H/sup -/ Penning SPS operated at Los Alamos. Since the original technology exchange, Los Alamos has developed scaled-up versions of the Penning H/sup -/ SPS with the goal of extending the H /sup -/ beam duty factor (df) while maintaining high beam brightness. A 250-mA H/sup -/ beam with rms normalized emittance of <0.3 ( pi mm- mrad) in both transverse planes has been extracted from a 4X scaled Penning source at a discharge df of 0.5%. Using discharge scaling laws and the 250-mA results, it is predicted that a 4X Penning H/sup -/ SPS with a slit emitter would be capable of producing >100-mA, low emittance H/sup -/ beams in the 5% df range. (16 refs). |