Requirements for Beamline Restarts After the APS Upgrade Shutdown

This checklist defines the requirements for CAT and XSD beamlines to return to operations after the APS Upgrade (APS-U) long shutdown. This will ensure that technical and administrative requirements are met in order to receive permission from APS management to bring individual beamlines back into operations.

All beamlines need to meet pre-beam requirements and undergo commissioning before returning to general user (GU) operations.

  • PSC Design Review Committee (PDRC) review – Examines the updated final beamline design and radiation safety aspects (new ray tracings will be required).
  • Check-out – Testing of new equipment, systems without beam.
  • Ops commissioning – First beam and shielding verification.
  • Technical commissioning –Testing of the beamline with beam.
  • Scientific commissioning and early experiments.
  • Restart of the general user program.

Each of these requirements will be described below with an APS point of contact (POC) as appropriate.

There is an additional requirement for returning a CAT beamline to the scientific commissioning stage.  CAT beamlines/sectors include all beamlines/sectors that are entirely or mostly funded for operations with resources other than the APS Operations budget. This includes beamlines/sectors where the APS is a minority partner. The additional requirement is:

  • An updated and approved CAT Management plan (See Appendix for details).