The Advanced Photon Source
a U.S. Department of Energy Office of Science User Facility

The Next APS Proposal Deadline is October 27, 2017


Deadline: Friday, October 27, 2017, for:
   - New General User Proposals (GUPs)
   - New Beam Time Requests for APS run 2018-1  (01/30/2018 - 04/24/2018) on existing active proposals   
   - Partner user proposals (PUPs)
   - CAT Member Proposals
   - APS Beamline Staff Proposals
   - CAT Beamline Staff Proposals

The GUP system (  will accept proposals and beam-time requests until 11:59 pm (Chicago time) on October 27, 2017. User Office support is available until 5:00 pm that day.

For questions the proposal submission process:

For general guidance on the Beam Time Access System:

For general inquiries, contact the User Office: 630-252-9090,

Published Date