Experimentally-verified test data providing daily calibration benchmarks and ISO certification
ISO 9001 certification
The AS was awarded ISO 9001 quality management systems certification - see here for more details.
Daily beamline calibration and start-up includes:
- Beam centre determination using diffraction of lanthanum hexaboride at varying detector distances, with results automatically updated to the image header records
- Precise centre of rotation alignment with sphere of confusion of 2µm or less
- Beam position alignment, using a YAG crystal, to centre of rotation, allowing active steering to keep the position constant
- Confirmation of operating optimisation through test dataset collection showing lowest resolution shell Rmerge <2.5 % to confirm that the beamline is producing high-quality, accurate data
- Accurate alignment of cryojet and cryojet temperature check
- Minimisation of port jams and robot loss-of-crystals by probing of user SSLR cassette / puck
Example of HTML report after beamline start-up
Finished at: Thu May 3 09:02:49 EST 2012
| Task | Completed |
| 1) Run userChanger | |
| 2) Align rotation axis (hover for image ) | |
| 3) Align beam on YAG (hover for image) | |
| 4) Snapshot EPICS PVs | |
| 5) Align cryojet and check cryo temperature | |
| 6) New beamcentre in image headers |
|
| 7) Collect a test dataset |
|
| 8) User cassettes mounted and probed | |
| 9) Look out Experimental Authorisation | |
| 10) Check user induction requirements |
