After you have submitted a Beam Time Request (BTR) on your General User Proposal (GUP), NE-CAT will claim your request. Regular beamtime requests are claimed prior to BAC day and scheduled by Cyndi Salbego during the maintenance month between run cycles. NE-CAT member institutions receive priority and are contacted first. Afterwards, all general users who have submitted a BTR or who have reached out to Cyndi Salbego are scheduled. 75% of all beamtime at NE-CAT is provided to general users. Rapid Access beamtime is available throughout a run and often announced via the NE-CAT news mailing list. If any additional time is available, a secondary announcement of rapid access time may be made on the CCP4 mailing list. Contact Cyndi Salbego to either schedule rapid access time or to be placed on our mailing list.
Currently, both NE-CAT beamlines operate on 2 shifts per day: 11:00 AM - 7:00 PM (day), 7:00 PM - 9:00 AM (night). Other scheduling options are available on a case-by-case basis. If you lose beamtime due to technical issues, such as the storage ring losing beam, NE-CAT will find you additional time. Contact Cyndi Salbego to be placed on our stand-by list in such cases.
You can check the APS Long Range Operations Schedule to determine when the APS is in operation or maintenance mode.