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OPPIS Upgrade for 2003 Polarized Run in RHIC(a).

DE200415006599

Publication Date	2003
Personal Author	Zelenski, A.; Alessi, J.; Briscoe, B.; Kponou, A.; Kokhanovski, S.; Klenov, V.; LoDestro, V.; Ritter, J.; Zubets, V.
Page Count	10
Abstract	The polarization dilution by molecular ions which are produced in the ECR primary proton source is discussed. The molecular component can be reduced to about 5% by ECR source-operation optimization. It is further suppressed by optimization of the extraction electrode optics and by the decelerating einzel lens in the 35 keV LEBT line. As a result, the proton polarization of the accelerated beam was increased to over 80%. as measured in the 200 MeV proton-deuterium polarimeter. The OPPIS upgrade for 6 2/3 Hz repetition rate operation is also discussed.
Keywords	Polarized beams Ion beams Proton beams Molecular ions Pulses Polarization Polarimeter Performance Reliability Proton source Lasers Graphs (Charts) Relativistic Heavy Ion Collider (RHIC) Optical pumped polarized ion source (OPPIS) Electron Cyclotron Resonance (ECR) Foreign technology Laser pulse duration
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Brookhaven National Lab., Upton, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200419

OPPIS Upgrade for 2003 Polarized Run in RHIC(a).

OPPIS Upgrade for 2003 Polarized Run in RHIC(a).
DE200415006599

Publication Date	2003
Personal Author	Zelenski, A.; Alessi, J.; Briscoe, B.; Kponou, A.; Kokhanovski, S.; Klenov, V.; LoDestro, V.; Ritter, J.; Zubets, V.
Page Count	10
Abstract	The polarization dilution by molecular ions which are produced in the ECR primary proton source is discussed. The molecular component can be reduced to about 5% by ECR source-operation optimization. It is further suppressed by optimization of the extraction electrode optics and by the decelerating einzel lens in the 35 keV LEBT line. As a result, the proton polarization of the accelerated beam was increased to over 80%. as measured in the 200 MeV proton-deuterium polarimeter. The OPPIS upgrade for 6 2/3 Hz repetition rate operation is also discussed.
Keywords	Polarized beams Ion beams Proton beams Molecular ions Pulses Polarization Polarimeter Performance Reliability Proton source Lasers Graphs (Charts) Relativistic Heavy Ion Collider (RHIC) Optical pumped polarized ion source (OPPIS) Electron Cyclotron Resonance (ECR) Foreign technology Laser pulse duration
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Brookhaven National Lab., Upton, NY.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200419