Proposals are scored on a scale of 1 to 5, with 1 being the best score and 5 the worst. Criteria for proposal evaluation can be found here.
Beam time is assigned based on each proposal’s score in relation to all other proposals for a given beamline. For beamlines where beam time requests exceed available beam time, a cutoff score is assigned after which no beam time is allocated.
The table below lists the percent of beam time shifts allocated/requested for each beamline and the cutoff scores after which no beam time was assigned for the 2025-1 Jan – Jul cycle.
Beamline |
% Beam Time Allocated / Requested |
Cutoff Score |
| 1.4 (IR) | 60 | 2.68 |
| 2.4 (SINS) | 47 | 2.32 |
| 4.0.2 (Magnetic Spectroscopy/Scattering) | 27 | 1.85 |
| 4.0.3.2 (MERLIN ARPES) | 30 | 1.60 |
| 5.3.2.2 (Polymer STXM) | 42 | 1.54 |
| 5.4 (IR) | 61 | 2.17 |
| 6.1.2 (Soft X-Ray Microscopy) | 33 | 2.03 |
| 6.3.1.1 (Magnetic Spectroscopy) | 62 | 2.13 |
| 6.3.2 (Calibration, Optics Testing, Spectroscopy) | 51 | 2.16 |
| 7.0.1 (COSMIC) | 26 | 1.50 |
| 7.0.2 (Surface & Materials Science (MAESTRO)) | 15 | 1.46 |
| 7.3.1 (ISAAC) | 30 | 1.63 |
| 7.3.3 (SAXS) | 24 | 1.44 |
| 8.0.1 (SXF) | 19 | 1.57 |
| 8.3.2 (Tomography) | 46 | 1.70 |
| 9.0 (Chemical Dynamics, Coherent Imaging) | 53 | 2.07 |
| 9.3.1 (Tender APXPS) | 28 | 1.33 |
| 9.3.2 (APXPS) | 37 | 1.36 |
| 10.0.1 (HERS/AMO) | 20 | 1.77 |
| 11.0.1 (PEEM3, Soft X-Ray Scattering) | 33 | 1.40 |
| 11.0.2 (APXPS, STXM) | 30 | 1.32 |
| 12.2.1 (Small Molecule Crystallography) | 69 | 1.77 |
| 12.2.2 (High Pressure) | 41 | 1.54 |
| 12.3.2 (Microdiffraction) | 86 | 1.70 |
| **Total allocation | 35 |
**Total number of beam time shifts, for all beamlines, requested by general users: 7,405.
Total number of beam time shifts, for all beamlines, allocated to general users: 2,605.