Current status of the wide-range (10-1500eV) spherical grating monochromator beamline at SRRC

Authors
Lai, LJ Tseng, PC Yang, YW Chung, SC Song, YF Cheng, NF Chen, CC Chen, CT Tsang, KL
Citation
Lj. Lai et al., Current status of the wide-range (10-1500eV) spherical grating monochromator beamline at SRRC, NUCL INST A, 467, 2001, pp. 586-588
Citations number
8
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
467
Year of publication
2001
Part
1
Pages
586 - 588
Database
ISI
SICI code
0168-9002(20010721)467:<586:CSOTW(>2.0.ZU;2-U
Abstract
We present the results obtained by commissioning a wide-range, 6-meter SGM, bending magnet beamline located at SRRC. The beamline is based on the Drag on-type design and delivers photons over a wide spectral range of 10-1500 e V. Two movable entrance slits in conjunction with a shared movable exit sli t are employed to accommodate the requirement of different grating included angles for low- and high-energy branches. Gas-phase photoabsorption measur ements performed on various gases validate that the resolution is at least 20 000 in the low-energy branch and 8000 in the high-energy branch. The res olution data compare well with the theoretical calculations. (C) 2001 Elsev ier Science B.V. All rights reserved.