Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 467, Issue -, Pages 496-499Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-9002(01)00381-3
Keywords
dragon beamline; ultra-high resolution; high flux; CGM; SGM
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An ultra-high resolution and high flux 6m cylindrical grating monochromator (6m-CGM) undulator beamline, covering the photon energies from 5 to 100eV, has been designed and constructed at SRRC. Two branches, housing separate entrance slits chosen to provide different incident angles, are used to optimize the overall performance, In each branch, two cylindrical gratings are used with the grating included angle set at 150 degrees and 130 degrees, respectively, to cover low (5-30 eV) and high (15-100 eV) photon energy. Movable entrance and exit slits are used to enhance the beamline performance. The energy resolving power with both slit openings set at 10 mum is expected to reach 90,000 and 40,000 in the low and high energy branches, respectively. A photon flux of 6 x 10(10) and 3 x 10(11) photons/s/200 mA can be obtained at the respective energy resolving power of 90,000 and 40,000. (C) 2001 Elsevier Science B.V. All rights reserved.
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