Synchrotron Radiation Instrumentation Conference

August 22-24 2001 - Madison, Wisconsin


NEW: The transcript for workshop #2 is available in PDF format


Agenda and viewgraphs of talks given at Workshop I are being posted at: and at BNL mirror site at



      For instructions on signing up for the following workshops (workshop I and workshop II) please go to the conference registration page.  

Attention:  The  schedule for workshop II is now available as a PDF file.

Workshop 1

Energy Recovery Linac Sources of Synchrotron Radiation

Date: Tuesday August 21, 2001 (All day Workshop)

Location: The Pyle Center on the University of Wisconsin Madison Campus

Registration Fee: $50.00 (Includes lunch, breaks, and any materials.)

Organizers: Don Bilderback (CHESS), Sol Gruner (CHESS), Chi-Chang Kao (BNL), Gwyn Williams (TJNAF)

Schedule: As of 7/9/01

The next generation of synchrotron radiation sources are being built on linear accelerators rather than storage rings. The high brightness is achieved thanks to laser-photocathode RF guns (Photoinjectors), enabling SASE FELs machines (LCLS at SLAC, LEUTL at APS, and TESLA at DESY) to reach X-ray wavelengths. These have been called 4th generation machines. In a complementary approach, other groups including ones at Brookhaven National Laboratory, Cornell University and Jefferson Lab, are also considering hard synchrotron radiation opportunities from photoinjected energy recovery linacs, operating at 3 to 10 GeV with ultra-high brilliance undulators. These machines are scaled up from the high-power Infrared Radiation (IR) FEL at Jefferson Laboratory, which operates as a one-pass light-source with energy recovery.

The advantages are numerous: horizontal emittance of order 100x less than current 3rd generation storage rings leading to the possibility of a diffraction limited hard x-ray source, fs pulses for stroboscopic x-ray experiments with GHz repetition rate, few micron electron source diameter in short length undulators for superior microfocusing applications, continuous injection so there is infinite SR beam lifetime, etc.

Since the technology to make such a machine may be of interest to many in the community and not many of us are familiar with the design principles of such sources and the special experimental opportunities afforded by such machines, we are organizing presentations by both machine physicists and synchrotron radiation experts to inform us of the potential opportunities.

SRI 2001 Workshop 2

User Requirements for Beam Stability

Date: Friday, August 24, 2001 (Afternoon)

Location: The Pyle Center on the University of Wisconsin Madison Campus

Registration Fee: No fee for this workshop

Organizers: Joe Bisognano (SRC), Mike Green (SRC)

SchedulePDF file (as of 8-17-2001)

At synchrotron radiation facilities today, beams of smaller spatial dimensions and divergences and shorter temporal duration are being routinely delivered. Heightened beam stability allows users to take full advantage of these achievements, and there is a clear need for researchers to communicate clearly to their facility partners their science-based requirements for source stability. The principal mission of this "Users' Requirements for Beam Stability Workshop" is to give an opportunity to users to define quantitatively those stability specifications that would significantly expand the scientific reach of experiments at synchrotron light sources.

The first half of the workshop will be devoted to short (15 minute) presentations from the research community on source stability requirements. Issues would include intensity variations, steering accuracy, photon energy resolution, electron trajectories in insertion devices, relevant time scales, experimental phase space acceptance, and the underlying scientific goals. The translation of source requirements into electron beam and optical instrumentation parameters could also be discussed. The second half of the workshop will be an open discussion with the goal of generating a concrete list of high priority tasks in beam stabilization.

Participants are encouraged to volunteer to give 15 minute presentations on their views of high priority, high leverage stability upgrades that would be attractive to their research programs. Presentations on the overall beam stability goals of the various synchrotron radiation facilities are also invited. Please forward a brief abstract to Joe Bisognano at by June 1.

Please let  Joe Bisognano know  as soon as possible if you are planning to attend this workshop (whether or not you plan to submit an abstract).  This will help us plan for space and materials.  Thanks.  

Page updated 7-18-2001


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