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parties informed about developments at the Advanced Light Source,
a national user facility located at Lawrence Berkeley National
Laboratory, University of California. To be placed on the mailing
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1. ALS INFRARED SCIENCE SHINES IN APS SPOTLIGHT
Infrared research at the ALS was recognized and publicized in a press conference at the American Physical Society (APS) meeting in Minneapolis last week, "the biggest physics meeting of the year." The press conference focused on the use of state-of-the-art tools in physics to improve our ability to detect the early signs of cancer. Michael Martin of the ALS was invited by APS meeting organizers to describe how he and his colleagues used infrared light from Beamline 1.4.3, focused down to 10 microns or less (human cells are typically 10 to 40 microns in diameter), to observe subtle molecular changes (such as DNA breaks) in living cells responding to low doses of radiation and chemicals. After the press conference, representatives of well-known science magazines took an interest in the work; look for related articles in the near future. An abstract and a lay-language paper are available on line at the APS meeting Web site.
2. PHYSICAL SCIENCES BEAMTIME ALLOCATED
The allocation process for physical sciences independent-investigator beamtime for the running period between June and November 2000 is complete. The number of proposals was 183, up from the 160 proposals of the previous period. The number of requests for eight-hour shifts increased from 2417 to 3184, an increase of more than 30%. However, only 1772 shifts, equal to 56% of the total time requested in the proposals, could be allocated. It is regrettable that the ALS will be unable to grant beamtime to many excellent proposals. Competition for time on insertion-device beamlines was especially keen; for these beamlines, the ALS was able to grant only about 31% of the time requested. Those requesting time on the insertion-device beamlines will continue to find the proposal process for independent investigators extremely competitive.
Beamtime requests for independent-investigator experiments are reviewed twice each year. A Program Study Panel (PSP) evaluates each proposal, providing the basis for granting beamtime. The PSP is made up of five scientists from a variety of synchrotron science disciplines. There is a separate PSP for the Macromolecular Crystallography Facility at Beamline 5.0. More information on the PSP and the independent-investigator process, including beamline score distributions and cutoffs, is available on the ALS Web site at http://www-als.lbl.gov/als/quickguide/independinvest.html.
Previous Issues are available.
ALSNews Vol. 149 March 29, 2000
Table of Contents
1. ALS Infrared Science Shines in APS Spotlight
2. Physical Sciences Beamtime Allocated
3. Petroff Report Now On Line
4. UEC Corner: Notes from the Users' Executive Committee
5. Recent Publications
6. Who's in Town
7. Operations Update
(Contact: MCMartin@lbl.gov)
(Contact: GFKrebs@lbl.gov)
Total shifts available at each beamline = 424
(includes shifts for participating research teams)
Shifts Shifts Percent
Beamline Proposals requested allocated allocated
1.4 14 284 284 100
4.0.1 6 133 127 96
6.1.2 4 65 65 100
6.3.1 4 29 29 100
6.3.2 8 78 78 100
7.0.1 42 700 198 28
7.3.1.1 12 128 106 83
7.3.1.2 2 50 50 100
7.3.3 1 56 56 100
8.0.1 31 531 212 40
9.0.1 2 40 34 85
9.0.2 5 132 72 55
9.3.1 7 136 106 78
9.3.2 10 195 127 65
10.0.1 20 419 99 24
10.3.1 2 28 28 100
10.3.2 13 180 101 56
Totals 183 3184 1772 56
In February, the ALS underwent a review commissioned by the Basic Energy Sciences Advisory Committee (BESAC) of the U.S. Department of Energy (see ALSNews Vol. 148). Yves Petroff, Director General of the European Synchrotron Radiation Facility and chair of the review committee, reported the results of the review to BESAC on February 29. A PDF version of the report is now available on line.
4. UEC CORNER: NOTES FROM THE USERS' EXECUTIVE COMMITTEE
by Nora Berrah
(Contact: berrah@wmich.edu)
This week I would like to report on only one important issue. The President's budget request for FY01 contains substantial increases for many programs, including those funded by the U.S. Department of Energy's Offices of Basic Energy Sciences (BES) and Biological and Environmental Research. The proposed budgets of both offices include increases--in the case of BES, the proposed increase is about 30% (including funding for an initiative to enhance the operation and utilization of BES-funded user facilities). Nevertheless, in order to have real impact on BES programs and funding for facility operations, the increases requested in the President's budget must result in actual increases in appropriation during the legislative process going on now in Congress. The UEC Vice Chair, Harald Ade, and I are working in close collaboration with the leadership of the users' groups of other facilities on strategies for responding to the President's proposed science budget. I have already sent out a private email on this important topic. If you did not receive it, or would like further information, please contact me at berrah@wmich.edu.
Derevianko, A., O. Hemmers, S.C. Oblad, P. Glans, H. Wang, S.B. Whitfield, R. Wehlitz, I.A. Sellin, W.R. Johnson, and D.W. Lindle, "Electric-octupole and pure-electric-quadrupole effects in soft-x-ray photoemission," Phys. Rev. Lett. 84(10), 2116 (March 2000).
Diehl, S., D. Cubaynes, H.L. Zhou, L. VoKy, F.J. Wuilleumier, E.T. Kennedy, J.M. Bizau, S.T. Manson, T.J. Morgan, C.P. Blancard, N. Berrah, and J.D. Bozek, "Angle-resolved photoelectron spectrometry studies of the autoionization of the 2s22p2P triply excited state of atomic lithium: experimental results and R-matrix calculations," Phys. Rev. Lett. 84(8), 1677 (February 2000).
Song, Y., M.D. Evans, C. Ng, C. Hsu, and G. Jarvis, "Rotationally resolved pulsed-field ionization photoelectron bands for O2+(A2
Pu, v+=0-12) in the energy range of 17.0-18.2 eV," J. Chem. Phys. 112(3), 1271 (January 2000).Song, Y., M.D. Evans, C. Ng, C. Hsu, and G. Jarvis, "Rotationally resolved pulsed field ionization photoelectron bands for O2+(a4
Pu, v+=0-18) in the energy range of 16.0-18.0 eV," J. Chem. Phys. 112(3), 1306 (January 2000).Following are some of the experimenters who will be collecting data during the next two weeks at the ALS.
Beamline 1.4.3:
Upal Ghosh, Dick Luthy (Stanford Univ.)
Kevin Wilson, Rich Saykally (Univ. of California, Berkeley)
Phil Huie (Stanford Univ.)
Hoi-Ying Holman (Berkeley Lab)
Sherry Zhang, Phil Ross (Berkeley Lab)
Felicia Betancourt, Bob Glaeser (Univ. of California, Berkeley, and Berkeley Lab)
Mary Kauffman (Idaho National Engineering and Environmental Laboratory)
Beamline 7.3.1.1:
Harald Ade (Univ. of North Carolina)
Gary Mitchell (Dow Chemical)
Beamline 8.0.1:
Manfred Neumann (Univ. of Osnabrück, Germany)
Elke Arenholz (Berkeley Lab)
Beamline 10.0.1:
Günter Kaindl (Freie Univ. Berlin)
John Bozek (Berkeley Lab)
Edwin Kukk (Western Michigan Univ.)
Scott Kellar and coworkers (Stanford Univ.)
7. OPERATIONS UPDATE
(Contact: RMMiller@lbl.gov)
For the last week, the ALS has been operating in 1.5-GeV mode. This was the first week of operation after a month-long installation shutdown. Overall beam reliability (March 20 to 26) was 90% for user shifts. Early in the week, there were several interruptions associated with startup after the extended shutdown, with delivery improved by week's end.
Long-term and weekly operations schedules are available on the Web (http://www- als.lbl.gov/als/accelinfo.html). Requests for special operations use of the "scrubbing" shift should be sent to Bob Miller (RMMiller@lbl.gov, x4738) by 1:00 p.m. Friday. The Accelerator Status Hotline at (510) 486-6766 (ext. 6766 from Lab phones) features a recorded message giving up-to- date information on the operational status of the accelerator.
ALSNews is a biweekly electronic newsletter to keep users informed about developments at the Advanced Light Source, a national user facility located at Ernest Orlando Lawrence Berkeley National Laboratory, University of California. To be placed on the mailing list, send your email address to ALSNews@lbl.gov. We welcome suggestions for topics and content. Submissions are due the Friday before the issue date.
Editors: lstamura@lbl.gov, alrobinson@lbl.gov, amgreiner@lbl.gov
Last updated March 29, 2000
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