General User Proposals

Step 1: Register as an APS User

Before you can submit a proposal, you need an APS badge number.

• New to APS? Register as an APS New User​
• Returning user? Renew your registration if it has expired
• Important: Start this process early—registration can take time, especially for international users​

Your badge number and password will be needed for all following steps.

Step 2: Learn About the GUP Program

Visit the APS page for General User Proposals (GUP) to understand:

• How proposals are reviewed
• What information you'll need
• Timeline and deadlines

Helpful Resources:

• Instructions for Proposers
• Definitions, Concepts and Help

Step 3: Prepare Your Proposal

Log in to the Proposal System using your badge number and password.

What to do:

1. Click "Create a New Proposal"
2. Select "General Users"
3. Choose "Macromolecular Crystallography Proposal" (includes rapid access MC)

Pro Tips:

• Combine all active projects from your lab into one proposal—you don't need separate proposals for each project
• Provide detailed, accurate information to help reviewers evaluate your work fairly​
• Select both 22-ID-D and 22-ID-E as beamlines if you'd like to use either

Step 4: Submit Your Proposal

Once you've completed all sections, submit your proposal through the APS system.

What happens next:

• Your proposal undergoes peer review by an APS Beam Time Allocation Committee (BAC)​
• Proposals are scored based on scientific merit
• Good news: Your proposal stays active for six runs—no need to resubmit each cycle!​

Step 5: Schedule Your Beamtime

If your proposal is approved for SER-CAT beamlines:

1. We contact you: SER-CAT staff will reach out to arrange your data collection schedule​
2. We handle the request: Our local staff will create the Beam Time Request for you—this ensures your allocated hours match your needs
3. You collect data: Work with our team to schedule your session on 22-ID-D or 22-ID-E

Quick Reference Timeline