Beamline I15 is dedicated to X-ray powder diffraction experiments at extreme pressures and temperatures. Research topics include fundamental Physics and Chemistry, Earth and Planetary Science as well as Materials Science and Engineering.
The beamline provides monochromatic high-energy X-rays from 20 to 80 keV. These X-rays focussed and collimated down to ≤20 µm can penetrate into complex sample assemblies permitting detailed mapping of structural order or disorder, chemical fingerprinting or structure determination.
Last month’s intensive repairs on the I15 wiggler’s cryocooling system and bore liner are looking successful. The wiggler has been cooled to its operational temperature and has held full field successfully. The storage ring current was stepped up progressively to optimize the machine vacuum, then operated at normal operating current all weekend; no issues with the I15 wiggler were encountered. We anticipate that we should return I15 and I15-1 beamlines to user operations this week as scheduled. Beamline start-up will commence on Tuesday 14th of January and any further necessary correspondence will be sent by the end of business on Tuesday.
We have changed our DAC policy and split it into DAC loaning only and DAC loaning + sample loading. Please familiarize yourself with the details under the DAC Policy tab here.
High-pressure workshop New Opportunities for High P-T Research at Diamond, 26th - 27th February 2019.
We still hope to have the wiggler running by the restart in January, so this is only about the next call for proposals and NOT cancelling any of the experiments currently scheduled for January and February. In the last update regarding new proposals we had suggested we would open the system in December but now wish to wait.
We have decided to hold off the opening of a call for proposals due to the continuing issues of the wiggler repair, it’s move back into the storage ring and the need to reschedule cancelled experiments from AP26 into the AP27 period. With more parts due to arrive in November, and visits scheduled from both the cooling system and wiggler manufacturers before Christmas we remain optimistic that operations will resume in January, but of course cannot yet be certain. Rather than have users submit proposals with this uncertainty we will reassess the situation in late January and decide the best course of action at that time. We will then update the web site and send out an email to all registered users.
We continue to be disappointed with these delays and wish to reassure users that Diamond Staff are doing all that they can to resolve the issue through vigorous and continous engagement with the external suppliers, as well as considering long-term options going forward
I15 has acquired a micromanipulator 'Axis Pro' from MicroSupport Co. It is now available to users. Watch this video from MicroSupport to see the loading of a diamond-anvil cell with the Axis Pro. It is amazing!!
Laser-heating system for high-pressure X-ray diffraction at the Extreme Conditions beamline I15 at DLS. Anzellini et al., J. Synchrotron Rad 25., Nov. 2018. 10.1107/S1600577518013383
Diamond Light Source is the UK's national synchrotron science facility, located at the Harwell Science and Innovation Campus in Oxfordshire.
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