Title :
Operation of the optically pumped polarized H- ion source at LAMPF
Author :
York, R.L. ; Tupa, D. ; Swenson, D.R. ; van Dyck, O.B.
Author_Institution :
Los Alamos Nat. Lab., NM, USA
Abstract :
A report is presented on the first five months of operation of the Optically Pumped Polarized Ion Source (OPPlS) for the nuclear physics research program at Los Alamos Meson Physics Facility (LAMPF). The LAMPF OPPIS is unique in using Ti:Sapphire lasers to polarize the potassium charge-exchange medium, and until recently was unique in using a superconducting magnet in the electron cyclotron resonance (ECR) source and polarizer regions. The ECR extraction electrode biasing arrangement is also unique. Typical performance was 25 mu A of peak current (measured at 750 keV) with 55% beam polarization or 15 mu A at 62%. Ion source availability was greater than 90%. Also reported on are planned improvements in preparation for research operation in May of 1991.<>
Keywords :
beam handling equipment; ion sources; polarisation; ECR extraction electrode biasing; LAMPF OPPIS; Los Alamos Meson Physics Facility; Optically Pumped Polarized Ion Source; Ti:Sapphire lasers; beam polarization; electron cyclotron resonance; peak current; polarizer regions; superconducting magnet; Electron optics; Ion sources; Laser theory; Mesons; Nuclear physics; Optical polarization; Optical pumping; Particle beam optics; Pump lasers; Superconducting magnets;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164825
