Analytical studies of top-up safety at the Advanced Photon Source.
The Advanced Photon source (APS) is a 7 GeV, third-generation synchrotron radiation source. To provide more stable beam for users, they are pursuing a new operating mode called top-up. In this mode, the beam current is not allowed to decay as it normally would, but instead is maintained at a high level through frequent injection. A safety question with top-up mode is, during injection with photon shutters open, can injected beam ever exit a photon beamline? This might happen, for example, due to a full or partial short of a dipole coil. The authors discuss a number of analytical calculations that can be used to quickly assess top-up safety for a general ring. They also apply these results to the specific case of the APS. A companion paper in this conference discusses detailed tracking procedures for assessing safety.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 11120
- Report Number(s):
- ANL/ASD/CP-97710; TRN: US0104291
- Resource Relation:
- Conference: 1999 Particle Accelerator Conference (PAC '99), New York, NY (US), 03/29/1999--04/02/1999; Other Information: PBD: 31 Mar 1999
- Country of Publication:
- United States
- Language:
- English
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