High-Intensity Polarized H- Ion Source for the RHIC SPIN Physics

被引：3

作者：

Zelenski, A. ^{[1
]}

Atoian, G. ^{[1
]}

Raparia, D. ^{[1
]}

Ritter, J. ^{[1
]}

Kolmogorov, A. ^{[2
]}

Davydenko, V. ^{[2
]}

机构：

[1] Brookhaven Natl Lab, Upton, NY 11973 USA

[2] BINP Novosibirsk, Novosibirsk, Russia

来源：

FIFTH INTERNATIONAL SYMPOSIUM ON NEGATIVE IONS, BEAMS AND SOURCES (NIBS 2016) | 2017年 / 1869卷

关键词：

D O I：

10.1063/1.4995735

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A novel polarization technique had been successfully implemented for the RHIC polarized H-ion source upgrade to higher intensity and polarization. In this technique a proton beam inside the high magnetic field solenoid is produced by ionization of the atomic hydrogen beam (from external source) in the He-gas ionizer cell. Further proton polarization is produced in the process of polarized electron capture from the optically-pumped Rb vapour. The use of high-brightness primary beam and large cross-sections of charge-exchange cross-sections resulted in production of high intensity H-ion beam of 85% polarization. High beam brightness and polarization resulted in 75% polarization at 23 GeV out of AGS and 60-65% beam polarization at 100-250 GeV colliding beams in RHIC. The status of un-polarized magnetron type (Cs-vapour loaded) BNL source is also discussed.

引用

页数：8

共 13 条

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