Skip to Content Skip to Search Skip to Utility Navigation Skip to Top Navigation

Become a pRad User

Proton Radiography at Los Alamos Neutron Science Center is the major experimental science facility , underpinning Los Alamos National Laboratory as a world-class scientific institution.


  • pRad User Office
  • (505) 667-6797
  • Email

2023 pRad Call for Proposals is CLOSED.

Please follow the proposal process is instructions. No previous proposals, even those awarded beam time, will be scheduled for 2023. All must reapply for beam time. If your experiment will be ready for the 2023 Run Cycle (approximately June 19 to December 19, 2023), apply to this call. If your experiment will not be ready to shoot in that time frame, please apply instead to the 2024 call for beam time.

2023 pRad Call (pdf)

Before you arrive

  • Submit a proposal
  • If your proposal is approved, you will receive an email from the pRad User Office asking you to register.
    Only users listed on the proposal will be able to register. If additional visitors are expected, the PI needs to add them to the proposal so they too can register.
  • If you are with an external institution, complete your user agreement - Users are not permitted to use any LANSCE facilities until a user agreement is in place.
  • Familiarize yourself with visiting LANSCE.

Coordinate your experiment with the pRad POC

  • You will be notified of your experiment schedule at 3-6 weeks prior to your start date.
  • It is important that you contact the technical pRad POC as soon as you receive your experiment start date.
  • If you intend to bring ancillary equipment or diagnostics, please coordinate this with your POC at least 6 weeks ahead of your scheduled beam time.
  • Complete your online training as directed by the User Office and your pRad POC.
    Training required for Unescorted Access to pRad will be assigned to you through UTrain and must be completed prior to your arrival at pRad. If you are a non-LANL worker you should schedule an extra day at LANL to take care of training and other on-boarding needs.
  • If your experiment is classified (or has not yet been determined to be unclassified) please let your technical POC know. Extra steps are required to obtain access to pRad when it is in classified mode.

When you arrive

First stop: Badge Office (if you don't have a LANL or DOE badge)

  • The Badge Office is located on the second floor of the Otowi Building (TA-3, Bldg. 261). You would need to request a badging appointment to receive your badge. The User Office will coordinate the appointment.

Second stop: Gate access to LANSCE

  • All users scheduled through the User Office will be allowed through the TA-53 guard gate on the date they are expected. All users must have a LANL badge or a valid LANL US visitor badge or an uncleared foreign national badge to get through the TA-53 guard gate. Notify the pRad User Office if your arrival date changes.
  • Initial access to LANSCE is available only during normal business hours, 6:00 a.m.-6:00 p.m. Monday-Friday unless special arrangements have been made in advance with the pRad User Office.

Third stop: Check-in at the User Office (if you need dosimetry and training)

  • At Building 1, Room D108, check in with the P-1 Group Office and let them know you have arrived for your experiment(s) scheduled at pRad.
  • At the LANSCE User Office or P-1 Group Office (TA-53, Bldg. 1) all required dosimetry will be issued to you. The check-in process takes about 10 minutes, not including training.
  • The User Office will also help you with any requests or questions you may have during your visit.


Before you depart

  • We hope that your research at the Los Alamos Neutron Science Center was productive and successful. Please complete a User Survey.
  • At the end of your experiment, return your badge and dosimetry using the drop box at the LANSCE TA-53 guard gate. DO NOT take your badges home!