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Investigations, Experiments, and Implications for Using ExistingPulse Magents for 'TOPOFF' Operation at the Advanced Light Source
Ross Schlueter
Christoph Steier
Gregory D. Stover
Walter Barry
Slawomir Kwiatkowski
Kenneth Michael Baptiste
Derek Shuman
Soren Prestemon
James Julian
William Gath
出版
Lawrence Berkeley National Laboratory
, 2005
URL
http://books.google.com.hk/books?id=Zk3XjwEACAAJ&hl=&source=gbs_api
註釋
ALS top-off mode of operation will require injection of the electron beam from the Booster Ring into the Storage Ring at the full ALS energy level of 1.9 GeV. Currently the Booster delivers a beam at 1.5 GeV to the Storage Ring where it is then ramped to the full energy and stored for the user operation. The higher Booster beam energy will require the pulse magnets in the Booster and Storage Rings to operate at proportionally higher magnetic gap fields. Our group studied and tested the possible design and installation modifications required to operate the magnets and drivers at ''top-off'' levels. Our results and experiments show that with minor electrical modifications all the existing pulse magnet systems can be used at the higher energy levels, and the increased operational stresses should have a negligible impact on magnet reliability. Furthermore, simple electrical modifications to the storage ring thick septum will greatly reduce the present level of septum stray leakage fields into the storage ring beam.
