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.
MX bag traing registration open until 13th June. Register here
Remote access available on all MX beamlines at all times since January 2013
I04 reopens to users on 25th April
I04 installed a Pilatus 6M-F detector in April 2013.
|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|
|Time to collect 180o data set (minutes)||2 +|
|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)
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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