Ion effects in the SLC electron damping ring
Conference
·
OSTI ID:527519
The authors report on the ion-related beam behavior in the electron damping ring during unusually poor vacuum conditions in the weeks that followed a catastrophic kicker chamber failure that contaminated the ring vacuum system. The vacuum gradually improved over several months of beam operation, during which time the vertical emittance remained blown up by a factor of 2. The emittance blowup was accompanied by a transverse instability that produced jitter in the extracted beam size. Both the characteristic spectrum of self-excited betatron sidebands and the emittance blowup exhibited a threshold behavior with beam current and vacuum pressure. This behavior depended strongly on the betatron tune and it was found that the ion effects could be minimized by operating just below the 1/2 integer resonance.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 527519
- Report Number(s):
- SLAC-PUB--7546; CONF-970503--275; ON: DE97007338
- Country of Publication:
- United States
- Language:
- English
Similar Records
Ion effects in the SLC electron damping ring under exceptionally poor vacuum conditions
A coupled-bunch ion instability in the SLC electron damping ring
Status of the SLC damping ring kicker systems
Conference
·
Wed Oct 01 00:00:00 EDT 1997
·
OSTI ID:674794
A coupled-bunch ion instability in the SLC electron damping ring
Conference
·
Thu May 01 00:00:00 EDT 1997
·
OSTI ID:524869
Status of the SLC damping ring kicker systems
Conference
·
Wed May 01 00:00:00 EDT 1991
·
OSTI ID:5738724