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SESAME: Finding a New Home for a Synchrotron in the Middle East
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[http://ipawww.epfl.ch/lpme/lpme.htm]
[http://www.weizmann.ac.il/~sesame]
Developed under the umbrella of UNESCO, SESAME is intended to be the
Middle East's first international research center. It will have as
its centerpiece a synchrotron radiation source based on an
anticipated gift from Germany of the 0.8 GeV BESSY I storage ring and
injector system when it stops operation at the end of November 1999.
BESSY I and its 1.9 GeV successor, BESSY II, are located in Berlin,
about 16 km apart, in the West and East parts of the city,
respectively. The spectral range of BESSY I will be extended to 20-25
keV by increasing the stored beam energy to 1.0 GeV and equipping it
with multipole superconducting 7.5 T wigglers. With these upgrades
the facility would be a very capable, broad spectral range source -
it's been called a "super second generation" or a "2.5 generation"
source. Due to its low emittance (50 nm-rad), high stored current
(700 mA), and small source size at the wiggler source points (0.45 mm
x 0.05 mm sigmas), very high flux and flux density would be available
from IR to hard x-rays. Undulators would provide relatively high
brightness at photon energies up to about 1 keV. Thus SESAME would
provide excellent performance for most applications, including those
now done at multi-GeV rings. Programs planned for SESAME include
structural molecular biology, molecular environmental science,
surface and interface science, microelectromechanical devices, x-ray
imaging, archeological microanlysis, materials characterization, and
medical applications. As an international scientific and
technological center of excellence open to all qualified scientists
from the Middle East and elsewhere, SESAME will be a propeller for
regional science and the economy as well as promoting peaceful
cooperation among scientists. The center will be jointly operated and
supported by all member countries, with additional support from other
countries interested in promoting the peaceful development of science
and technology in the Middle East.
More information about synchrotron radiation and SESAME can be found
in the SESAME web-site http://ipawww.epfl.ch/lpme/lpme.htm