Effects of vertical aperture on beam lifetime at the Advanced Photon Source (APS) storage ring

Conference · Thu Jun 01 00:00:00 EDT 1995

OSTI ID:72730

Bizek, H M

When a positron`s energy deviation {delta}E/E exceeds the rf acceptance, or when it receives an angular kick for the betatron motion that exceeds some limiting admittance, the positron will be lost. The main contributions to the total beam lifetime come from single Coulomb and Touschek scattering. In this report we investigate the dependence of the residual gas pressure and the vertical aperture of the Advanced Photon Source storage ring on the total beam. lifetime. We present results of calculating the total beam lifetime as a function of vertical aperture for varying average ring pressure, beam current, and coupling coefficient.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 72730
• Report Number(s): ANL/ASD/CP-85013; CONF-950512-170; ON: DE95013416
• Resource Relation: Conference: 16. Institute of Electrical and Electronic Engineers (IEEE) particle accelerator conference, Dallas, TX (United States), 1-5 May 1995; Other Information: PBD: [1995]
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
ADVANCED PHOTON SOURCE
BEAM DYNAMICS
POSITRON BEAMS
LIFETIME
APERTURES
BEAM CURRENTS
PRESSURE DEPENDENCE