The Bunch Injection Controller for the PEP-II Storage Rings
- SLAC
The PEP-II storage rings at SLAC each have 3492 ''buckets'' into which electrons and positrons can be injected into the high- and low-energy rings. Equipment to measure the currents of all the individual buckets was originally provided by the Lawrence Berkeley Laboratory and is implemented in VXI-based hardware. Data from this equipment as well as high precision direct current measurement provide the hard data for the Bunch Injection Controller. A large number of parameters determined by injection design considerations as well as set by operators for different circumstances are also used by the software algorithms to determine the desired bucket injection order and charge quantity for each injection pulse. These requests are then passed on to the venerable SLAC master pattern generator, which provides beams for other applications as well. This highly visible and highly successful system is implemented using the EPICS toolkit, and fits well into the merged SLAC EPICS/SLC control system. The Bunch Injection Controller hardware is a VME-based EPICS IOC, which makes extensive use of shared memory for communicating with the VXI measurement equipment and the SLAC master pattern generator.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 798995
- Report Number(s):
- SLAC-PUB-9124
- Country of Publication:
- United States
- Language:
- English
Similar Records
Bunch-by-bunch longitudinal feedback system for PEP-II
The Advanced Photon Source injection timing system
PEP-II injection timing and controls
Conference
·
Wed Jun 01 00:00:00 EDT 1994
·
OSTI ID:10194024
The Advanced Photon Source injection timing system
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:198682
PEP-II injection timing and controls
Conference
·
Tue Jul 01 00:00:00 EDT 1997
·
OSTI ID:521624