Proposal Calls

2024-A General User Proposal Call (HFIR Submissions only)

The Neutron Sciences General User Proposal Call for 2024-A closed on Wednesday, September 20, 2023. Only HFIR instruments were available for request in 2024-A.

Note: Bio-SANS/CG-3 was unable to accept proposals for 2024-A.

Award notices will be sent by November 15, 2023. Proposals awarded beam time at HFIR will be scheduled to run from April 2 to July 5, 2024 (HFIR fuel cycles 506 and 507).

Due to the planned Proton Power Upgrade (PPU) outage starting in August 2023, SNS instruments were unable to accept proposals in the 2024-A proposal call. 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.

2024-A General User Proposal Call Overview

  • Submission deadline: Wednesday, September 20, 2023 (noon Eastern)
  • Experiment run dates: April 2 to July 5, 2024
  • Award notifications: by November 15, 2023
  • Facility: HFIR only

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

Future Dates

Please Note: Proposal Call deadlines are subject to change based on facility schedule changes. The User Office will communicate any date changes on this website and in the user newsletter.

2024-B

  • Submission deadline: February 21, 2024
  • Award period: July 1 – December 30, 2024
    • HFIR July 23-November 18 (cycles 508, 509, 510)
    • SNS July 1-October 30
  • Award notification by April 24, 2024

2025-A

  • Submission deadline: August 14, 2024
  • Award period: January 1 – June 30, 2025
    • HFIR February 18-June 20, 2025 (cycles 511, 512, 513)
    • SNS mid-January-May 30, 2025
  • Award notification by October 16, 2024