Commissioning results of the APS storage ring rf beam position monitors

Technical Report · Mon Jul 01 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/270783· OSTI ID:270783

Kahana, E; Chung, Y

The commissioning of the 360 rf beam position monitors (BPMs) in the Advanced Photon Source (APS) storage ring (SR) is nearing completion. After using the single-turn capability of the BPM electronics in the early ring commissioning phase, resolution measurements versus current and bandwidth were successfully performed. In the standard Sr vacuum chamber geometry, the resolution was measured with beam as 0.16 {micro}mA/{radical}(Hz). For the insertion device vacuum chamber geometry, the resolution was measured to be 0.1 {micro}mA/{radical}(Hz). Since the photon beam stability requirement for the users is only 4.5 microns rms in the vertical direction, investigations of rf BPM offset versus current and bunch pattern have also been initiated. Both single bunch and multibunch beam patterns with varying intensity were used to determine offset stability for both the global and the local orbit feedback applications.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 270783
• Report Number(s): ANL/ASD/CP--89624; CONF-9605173--6; ON: DE96012753
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
BEAM CURRENTS
BEAM MONITORS
BEAM POSITION
COMMISSIONING
EXPERIMENTAL DATA
ORBIT STABILITY