Notes on dumping gold beam in the AGS

Gardner, C.J. ; Ahrens, L. ; Thieberger, P.

关键词: BEAM DUMPS;    GOLD;    BROOKHAVEN RHIC;   

DOI  :  10.2172/988797
RP-ID  :  BNL--93898-2010-IR
PID  :  OSTI ID: 988797
Others  :  R&D Project: KB0202011
Others  :  18031
Others  :  Other: KB0202011
Others  :  TRN: US1007011

学科分类：核物理和高能物理

美国|英语

来源: SciTech Connect

【 摘 要 】

Localized losses of gold beam in the AGS during RHIC Run 8 produced vacuum leaks which required the replacement of several vacuum chambers. A review of what happened and why was given by Leif Ahrens at the Run 8 Retreat. The following notes trace the subsequent development of clean dumping of gold beam on the beam dump in the J10 straight. The novel idea of stripping Au77+ ions in order to put them directly into the upstream face of the dump was introduced by Leif Ahrens and developed by all three of us. George Mahler made the actual stripping device and Dave Gassner developed its control. Leif Ahrens successfully commissioned the device with gold beam during Run 10. The reader may find it helpful to first view the figures herein and then refer to the text for details.