Issue 10; November 2, 2001
J. Murray Gibson to Lead the APS
Eleventh Users Meeting Highlights Science and Students
Independent Investigator Proposals Due November 15
Six Elected to APS Users Organization Steering Committee
User Survey Results
Murray Gibson to Lead the APS
Murray has published more than 160 papers in refereed journals and given more than 120 invited presentations. His work, particularly on the use of electron diffraction to study thin films and interfaces, has attracted international recognition. His current research involves coherent diffraction studies of fluctuations in amorphous materials. He holds seven patents, and has received the Burton Medal of the Microscopy Society of America, and the Distinguished Lecturer Award of the American Vacuum Society. He is a Fellow of both the American Physical Society and the Royal Microscopical Society, and has been a Councilor of the Materials Research Society, a Councilor of the Microscopy Society of America, and Chair of the Materials Physics Division of the American Physical Society. He is currently a member of the National Research Council's Solid-State Sciences Committee.
In this first message to the user community, Murray writes:
It is my great pleasure to join the Advanced Photon Source (APS) family as Associate Laboratory Director. The APS is an outstanding facility and a dynamic partnership between its users and staff.
We can all be justifiably proud of the machine performance and the continued dedication of the APS staff to improving reliability. In FY 2001, the facility achieved 95.8% availability for 5,000 hours of user-beam time. You clearly made the most of that beam time: 1,989 users came here at least once to carry out experiments, a number that is growing at a rate of almost 400 per year. The scientific output from those experiments is very impressive and growing by leaps and bounds. For those of you who were unable to attend the 11th Annual Users Meeting held October 9-11, let me report that it was an superb display of great science and engineering.
The APS is entering an exciting phase in which research output will blossom. As Associate Laboratory Director, I am keen to meet as many of you as I can, and to listen to your concerns and ideas as to how we can together bring this facility to the next level.
perspective, this is a great job. I am privileged to build
on the achievements of outstanding scientists&emdash;David
Moncton, Gopal Shenoy, Yanglai Cho, John Galayda, and many
others. We are assured that the APS will continue this
tradition of success, but we are challenged to strive for
the highest possible level of scientific impact. I am
thrilled by the science that is yet to come, and I look
forward to working with you to our mutual benefit as
partners in this great enterprise.
Users Meeting Highlights Science and Students
The fifth APS Arthur H. Compton Award was given to Prof. Wayne Hendrickson (Columbia University) for his contributions to the development of multiwavelength anomalous diffraction (MAD) as a synchrotron radiation tool for structural biology. The dramatic increase in the number of published structures solved by the MAD method since its development is a testament to the impact of Hendrickson's work. Further information about the Compton Award (including a list of past awardees) can be found at http://www.aps.anl.gov/apsuo/compton.html.
Students, an important segment of the APS user population, also provided a scientific presence at the meeting. Three students were recognized in the traditional student poster competition for the quality of their work: Matthew DeCamp, University of Michigan; Martin Holt, University of Illinois; and Wenyi Cai, a high school student from Naperville (Illinois) Central High School. Special recognition was accorded to Achintya Madduri, currently a freshman at Rice University. As a high-school student, Achintya carried out data evaluation on work conducted at the APS that resulted in a Physical Review Letters publication (Phys. Rev. Lett. 87, 13, September, pp 135504-1 - 135504-4, 2001)!
album of photos from various events at the Eleventh Users
Meeting can be viewed at http://www.aps.anl.gov/conferences/11um/scrapbook.html.
Investigator Proposals Due November 15
Elected to APS Users Organization Steering
the Steering Committee are open to all interested users. The
next one will be held on January 17, 2002, at the APS.
Information about the meeting can be obtained by contacting
Paul Zschack, APSUO Chair (email@example.com)
or Susan Strasser, APS liaison to the APSUO
User Survey Results
This was also a year where a significant portion (25%) of the user beamtime was in the top-up mode. The requirement of injecting a single shot into the storage ring every two minutes instead of an injection cycle every 12 hours placed an increased reliability demand on the injector systems. But the injector performed remarkably well, with an overall annual availability over 95% during top-up. In fact, during the last two runs, the injector availability exceeded 97%. Top-up is scheduled for 75% of user beamtime in the current fiscal year.
A week of user beam time was also provided in the low-emittance mode, with the horizontal emittance reduced from 7 nm-rad to 3 nm-rad. The reduced source size and divergence normally come at a price of reduced lifetime, but because low-emittance operation was coupled with top-up, the users experienced only the benefits, without the drawbacks, of this operating mode. The positive experience during the period has reaffirmed the decision to operate in the low-emittance mode during all of the scheduled top-up operation for the current fiscal year.
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