BM8 GENERAL PURPOSE ITALIAN LINE FOR DIFFRACTION AND ABSORPTION
GILDA CRG

 

 

operational

Sept. 1994
scientific applications
XAS, Surface XAS
source characteristics
bending magnet ec = 19.2 keV
  source size 0.187 x 0.128 mm2 (HxV) FWHM
  source divergence 115 x 5 µrad2 (HxV) FWHM
  divergence for photon source(ec) dF =3.6 mrad, sR=50 µrad
  peak brightness 7·1013 ph s-1mrad-2 (0.1% bw, 0.1A)
  power (from 3.6 mrad of the source) 225 W FWHM
  power density at 25 m 0.83 Wmm-2 FWHM
  beam size at 25m 90 x 3 mm2 (HxV) FWHM
  total horiz. ang. acceptance 3.6 mrad

optics
optical elements: mirror 1* double-crystal mono. mirror 2*
  distance from source: 25 m 28.5 m 32 m
  focusing type: vert. coll. horiz. foc. vert. foc.
  *mirrors only used for low energy set-up (5-28 keV)
  beam size at sample: 1 x 2 mm2 (HxV) for 5 - 28 keV
  1 x 2 mm2 (HxV) for 28 - 50 keV
  spectral range: 5 - 85 keV
  energy resolution DE/E: 10-5 - 10-4
  flux at sample: 1010 - 1011 ph s-1 (0.01%bw, 0.1A)

detectors
see text