Title :
Development of a high duty factor, surface conversion H- ion source for the LANSCE facility
Author :
Wengrow, A.B. ; Leung, K.N. ; Leitner, M.A. ; Williams, M.D. ; Wutte, D.C. ; Ingalls, William B. ; Stevens, Ralph R., Jr.
Author_Institution :
Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
The next generation spallation neutron sources, such as the upgrade to the Los Alamos Neutron Science Center (LANSCE) will require high intensity negative hydrogen (H-) beams. The new LANSCE source in particular will need to generate 40 mA of H- beam current at a duty factor of 12% (1 ms pulse at 120 Hz). One option that we are currently studying concerns altering the existing LANSCE source to utilize an RF induction plasma discharge. However, before proceeding with any changes a full understanding and optimization of our current prototype ion source was required. This surface conversion source, similar to the present LANSCE source, will be used as a benchmark against which to measure future modifications, as well as to provide direction for those modifications. Results to date along with future plans will be presented
Keywords :
hydrogen ions; ion sources; negative ions; neutron sources; 120 Hz; 40 mA; H; LANSCE facility; Los Alamos Neutron Science Center; RF induction plasma discharge; high duty factor ion source; spallation neutron sources; surface conversion H- ion source; Fault location; Hydrogen; Induction generators; Ion sources; Neutrons; Plasma measurements; Plasma sources; Prototypes; Pulse generation; Radio frequency;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.752758
