Maintaining an Active Proposal

General User Proposals (GUPs) generally remain active for two years (four cycles) or until the number of shifts recommended by the Proposal Study Panels (PSP) for the life of the proposal have been used. Users with expired proposals, or with proposals still eligible for beam time, will be notified of their status during the regular proposal submission cycle. Users may decide whether to submit a new proposal or make a beam time request on an active proposal based on the cutoff score for that beamline.

Please note that proposal scores are adjusted in subsequent cycles--to increase the chances of a proposal obtaining beam time in the second cycle, if the proposal was not allocated beam time in the first cycle. View General User Proposal Scores for the most recent beam time cutoff scoring information.

Go here to request beamtime on an active proposal.