OPTIMIZATION STUDIES OF PROTON POLARIZATION IN THE TRIUMF OPTICALLY PUMPED POLARIZED H- ION-SOURCE

Authors
ZELENSKII AN JAYAMANNA K LEVY CDP MCDONALD M RUEGG R SCHMOR PW
Citation
An. Zelenskii et al., OPTIMIZATION STUDIES OF PROTON POLARIZATION IN THE TRIUMF OPTICALLY PUMPED POLARIZED H- ION-SOURCE, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 334(2-3), 1993, pp. 285-293
Citations number
19
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
334
Issue
2-3
Year of publication
1993
Pages
285 - 293
Database
ISI
SICI code
0168-9002(1993)334:2-3<285:OSOPPI>2.0.ZU;2-I
Abstract
The TRIUMF optically pumped polarized ion source presently produces a 15 muA dc beam of up to 80% polarized H- ions within a calculated norm alized emittance of less than or similar 0.16 pi cm mrad. Extracted be am parameters, after acceleration by the TRIUMF cyclotron to 230 MeV, are approximately 4 muA with a proton polarization of 75%. The source is based on optical pumping of Rh vapor by Ti:sapphire lasers, resulti ng in improved polarization compared to previous results using Na as t he polarized medium. The instrumentation and results of a detailed stu dy of parameter dependences are reported.