I04 is one of five macromolecular crystallography beamlines at Diamond. The typical working wavelength is 0.9795 Å (12.658 keV) but it is tuneable over the wavelength range 0.62 - 2.25Å.
The beamsize is 90 x 45 µm, but this can be shaped by 10 or 20 µm apertures.
All MX beamlines use SPINE standard pins and Unipucks from cryocooled samples. The beamline can be accessed remotely.
Apr 25, 2013 12:00:00 AM:
ECM (25th-29th August) Registration still open!
Jan 25, 2013 12:00:00 AM:
Remote access available on all MX beamlines at all times since January 2013
Apr 15, 2013 12:00:00 AM:
I04 reopens to users on 25th April
Apr 15, 2013 12:00:00 AM:
I04 installed a Pilatus 6M-F detector in April 2013.
Now with two sample dewars - 10 Unipucks, 160 SPINE pins
Testing the mini-kappa - contact Ralf for more details
I04 sample environment
I04 Specifications
| Standard energy (Å / keV) | 0.98 / 12.66 |
| Flux at 12.66 keV (ph/s) | 4.0 x 1012 |
| Wavelength range (Å) | 0.62 - 2.25 |
| Energy range (keV) | 5.5 - 20.0 |
| Beam size at sample (µm) | 90 x 45 |
| Detector | Pilatus 6M-F |
| Time to collect 180o data set (minutes) | 2 + |
| Sample Changer | ACTOR |
| No. of pins in dewar | 160 |
| Sample exchange time (seconds) | 30 |
| Guide to samples screened/hour (user centering) | 30 |
+ 0.1o per 0.066 second exposure 1800 frames (shutterless)
Features include:
- 90 x 36 µm beam delivering 2 x 1012 ph/s at the Se K edge
- Dectris Pilatus 6M-F detector
- Apertures (10, 20 or 200 µm).
- High resolution viewing system
- Accurate sample centering stages
- Simple beam visualisation procedures
- Fine resolution attenuation control
- Rigaku ACTOR sample changer - 10 Unipucks / 160 samples
- Vortex fluorescence detector
- Automated data processing
- Remote access
I04 Beamsize and Flux
For some time I04 has used compound refractive lenses for beam focussing which gave a variable beam size (from 8 x 2 to 200 x 200 µm) which was energy dependent. The beamline now (since January 2013) has repolished mirrors installed which deliver a focussed beam of 90 x 45 µm across all available energy ranges. The beamline will run with the mirrors in place for the foreseeable future whilst the beamline team work when time is available outside of the user programme to exploit the full capabilities of these mirrors by commissioning them further over the coming weeks and months. Please monitor the MX and I04 home pages to keep abreast of the latest beamline status.
Currently there are user selectable apertures of 10, 20 and 200 µm. These provide flux at the sample as shown in the table below:
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