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

APS User Information

CORONAVIRUS COMMUNICATION TO USERS:  The Centers for Disease Control and Prevention issued new guidance on February 5, 2020, intended to prevent the spread of the coronavirus (2019-nCoV). As result of the new guidance and due to the recent acceleration of 2019-nCoV transmission across China, Argonne has updated its site access protocols for users, visitors, and staff.

Users and visitors who have arrived in the U.S. after travel to or through mainland China on February 3 or later are requested to reschedule their visit to Argonne for a time at least 15 days after their date of arrival to the U.S.

We continue to ask all users and visitors who are ill, particularly if they are exhibiting respiratory symptoms, including fever, cough and difficulty breathing, to reschedule their visit and seek medical guidance.

This is a temporary measure that will help Argonne maintain a safe, healthy, and productive workplace. We appreciate your patience and willingness to help stop the spread of this virus. Continue to check back with us for updates.

Ask the APSUO!:  The APS Users Organization (APSUO) is the elected advocacy group for the user community at the APS. Need to reach out to your advocates with any questions/concerns/feedback/ideas/problems? Please use this form to contact the APSUO Steering Committee Chair and Vice Chair. Your communications can be completely anonymous if you wish.

2020 APS/CNM Users Meeting Registration is Open!:  Registration and workshop information is available here.

NOTIFICATION TO USERS:  The U.S. Department of Energy Office of Science (SC), which is the primary sponsor of the APS, requires that a limited set of information relating to your user project/experiment be transmitted to SC at the conclusion of the current fiscal year.  A subset of this information, including your name, institutional affiliations), and project titles(s), will be publicly disseminated a part of an SC user facility user projects/experiments database on the SC website,, after the conclusion of the fiscal year.  For proprietary projects, SC requests that the user provide a project title that is suitable for public dissemination. 

SHUTTLE SERVICE:  The Argonne Guest House now offers a shuttle service between the hotel and the Main Gate for its guests! The shuttle is available Monday through Friday from 8:00 am to 5:00 pm.

A color-coded map of Argonne National Laboratory is now available to better assist navigation around the Lab! APS is located in the 400 area.


My APS Portal is your personalized gateway to the APS. Your user badge number is your key to My APS Portal.

Need a badge number? Register to be a user!

The Portal includes information about

  • you: your visits to APS, site access permission, user agreement, training, contact/bio information
  • your research: proposals, ESAFs, EEFs
  • action items: things that need to be addressed before you arrive at Argonne

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