Vacuum chamber thermal protection for the APS (Advanced Photon Source)
The addition of undulators and wigglers into synchrotron storage rings created new problems in terms of protecting the integrity of the ring vacuum chamber. If the photon beam from these devices were missteered into striking an inadequately cooled section of the storage ring vacuum chamber, the structural strength might be reduced sufficiently that the vacuum envelope could be penetrated, resulting in long downtime of the storage ring. The new generation of high-energy synchrotron light sources will produce photon beams of such high power density that cooling of the vacuum chamber will not prevent a potential penetration of the vacuum envelope, and other methods of preventing this occurrence will be required. Since active methods will be used to ensure that the beams are delivered to beam lines for users during normal operation, there is a need for passive protection methods during non-routine operation, such as turning on new beam lines, injection, etc., when the active systems may be disabled. In addition, the passive methods could prevent the problem from arising and provide the rapid time response necessary for the highest power beams, a property that might not be easily and reliably provided by active methods during the early operation of these machines. This paper summarizes the results of a task group that studied the problem and outlines passive methods of protection for the Advanced Photon Source (APS). 2 refs., 3 figs., 1 tab.
- Research Organization:
- Argonne National Lab., IL (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 5412529
- Report Number(s):
- CONF-890335-262; ON: DE90002228; TRN: 89-029221
- Resource Relation:
- Conference: 13. particle accelerator conference, Chicago, IL (USA), 20-23 Mar 1989
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
PRESSURE VESSELS
SAFETY
HEAT TRANSFER
PHASE SPACE
STORAGE RINGS
SYNCHROTRON RADIATION SOURCES
WIGGLER MAGNETS
CONTAINERS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
ENERGY TRANSFER
EQUIPMENT
MAGNETS
MATHEMATICAL SPACE
RADIATION SOURCES
SPACE
430303* - Particle Accelerators- Experimental Facilities & Equipment