BM8 Linea Italiana per la Spettroscopia di Assorbimento X (LISA CRG)

 

LISA

operational

Sept. 1994
scientific applications


XAS, Surface XAS

Reference: F. d'Acapito et al, JSR, 2019
source characteristics single bending magnet ec = 19.2 keV
  source size ... mm2 (HxV) FWHM
  source divergence ... µrad2 (HxV) FWHM
  total horiz. ang. acceptance 1 mrad
   

optics

optical elements:

  • collimating mirror. Si and Pt coating
  • fixed exit double-crystal monochromator. Si311 and Si 11 Xtals
  • foucusing. mirror 2. Si and Pt coating
 

Energy ranges - Mirrors

  • Si coating 5-15 keV
  • Pt coating 15-40 keV
  • no mirrors >40 keV

Energy ranges - Crystals

  • Si(111) xtal 5-30 kev
  • Si(311) xtal 5-55 keV
  • Si(333) > 55 keV
 

beam size at sample:

  • focused mode: 0.1 x 0.1 mm2 (HxV)
  • unfocused mode:  2 x.1 mm2 (HxV)
   
  spectral range: 5 - 90 keV
  energy resolution DE/E: 10-5 - 10-4
  flux at sample: 1010 - 1011 ph s-1

FdA Apr 2026