ALSNews is a biweekly electronic newsletter to keep users and other interested parties informed about developments at the Advanced Light Source, a national user facility located at Lawrence Berkeley National Laboratory, University of California. We welcome suggestions for topics and content.
Previous Issues are available.
User beamtime is scheduled to resume on May 22. Owl shift on April 15 has been changed from user operations to accelerator physics. The reason for taking this particular shift is to perform an experiment that requires partial venting of the storage ring vacuum system. The experiment will probe an instability, known as the fast ion instability, which gets progressively worse as storage ring pressure increases. The goals are to identify the characteristic signature associated with the instability and to study how the instability varies as the gap in the bunch train is changed.