Solicitation for Proposals to Perform Nuclear Physics Research at the High Intensity Gamma Ray Source (HIγS) – 2023

Proposal Submission Deadline: March 31, 2023

HIγS PAC Meeting Date: TBD

Duke FEL Lab
 Duke FEL Laboratory building housing the High Intensity Gamma-Ray Source and the storage ring FEL.

This is the regular call for proposals for nuclear-physics experiments at the High Intensity Gamma-ray Source (HIγS).  New proposals will be reviewed by the HIγS Program Advisory Committee (PAC) at their next meeting. The proposal submission deadline and date of the next HIγS PAC are given above.  Priority will be given to proposals that include TUNL collaborators. 

We plan to operate HIγS for about 1500 hours per year for nuclear physics research. Experiments which are approved by this PAC will be placed in the run queue and may be scheduled for beam time as early as the fall 2023.  Beams with energies from about 2 MeV up to 120 MeV are available.

The clock for the three-year Jeopardy policy on HIGS PAC approved experiments continues to be paused.  The policy is that an experiment that has not been completed or scheduled for its final beam time within three years of being approved by the PAC is in jeopardy of being deleted from the scheduling queue.  Because of the pause, no experiments are in jeopardy this year. 

Questions about the proposal submission process should be directed to Shaun Diehl at shaun.diehl@duke.edu.

A table of available HIγS beam parameters may be downloaded at the following location:


The submission deadline for 2023 proposals has passed.  Thank you to all who submitted proposals for this year's PAC.