Booster double harmonic setup notes

Gardner, C. J.¹ 

[1] Brookhaven National Lab. (BNL), Upton, NY (United States). Collider-Accelerator Dept.

关键词: PROTONS;    POLARIZED BEAMS;    BEAM CURRENTS;    ACCELERATION;    CAPTURE;    SPACE CHARGE;    BROOKHAVEN RHIC;    BEAM DYNAMICS;    PARTICLE BOOSTERS;    OPERATION;    HARMONICS;   

DOI  :  10.2172/1172091
RP-ID  :  BNL--107525-2015-IR
RP-ID  :  BNL--C-A/AP/535
PID  :  OSTI ID: 1172091
Others  :  R&D Project: KBCH139
Others  :  18031
Others  :  Other: KB0202011
Others  :  TRN: US1500138

学科分类：核物理和高能物理

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来源: SciTech Connect

【 摘 要 】

The motivation behind implementing a booster double harmonic include the reduced transverse space charge force from a reduced peak beam current and reduced momentum spread of the beam, both of which can be achieved from flattening the RF bucket. RF capture and acceleration of polarized protons (PP) is first set up in the single harmonic mode with RF harmonic h=1. Once capture and acceleration have been set up in the single harmonic mode, the second harmonic system is brought on and programmed to operate in concert with the single harmonic system.