Proposal Calls

2023-B General User Proposal Call (HFIR Submissions only)

The Neutron Sciences General User Proposal Call 2023-B will close on February 22, 2023. Only HFIR instruments will be available for request in both 2023-B and 2024-A. 

Proposals awarded beam time at HFIR will be scheduled to run from August to December 2023. 

Due to the planned Proton Power Upgrade (PPU) outage starting in August 2023, SNS instruments will not be accepting proposals in the 2023-B or 2024-A proposal calls. The current HFIR/SNS 5-Year Working Schedule expects SNS availability to resume July 2024 contingent on PPU progress. Details about SNS availability in future proposal calls will be posted here.

2023-B General User Proposal Call Overview

  • Submission deadline: Wednesday, February 22, 2023 (noon Eastern)
  • Experiment run dates: August to December 2023
  • Award notifications: by April 26, 2023
  • Facility: HFIR only

Please note the following restrictions/limitations for 2023-B instrument requests:

  • GP-SANS (CG-2) will not be accepting proposals that require rheometer sample environment.

2024-A General User Proposal Call Overview

  • Submission deadline: Wednesday, August 30, 2023 (noon Eastern)
  • Experiment run dates: January to June 2024
  • Award notifications: by October 25, 2023
  • Facility: HFIR only

Researchers should apply directly via the Integrated Proposal Tracking System (IPTS). For more information, contact the User Office.