Scientific Access

The APS is a open user facility that makes beam time available to the international scientific community through a peer-reviewed proposal process.

Two access modes are available: General Users and Partner Users. General Users are those who require less than 10% of the beam time on a beamline in a given cycle. Partner Users are those whose work involves a greater scope and greater commitment by both the user and the APS. Specific requirements govern both modes of access.

 

Become a User
Step-by-step guide to joining the APS user community.

General Users
Policy and process for participating in the APS as a General User, including proposal system, instructions, and deadlines.

Partner Users
Policy and process for participating in the APS as a Partner User, as well as summary of current Partner User projects. A Collaborative Access Team (CAT) is one type of Partner User.

Beamlines and Facility
Beamline directories, maps, and operating status and schedule.