IXS Session

1
IXS Session

• What are the key scientific drivers?
• 0.1-meV scientific case filling the gap b/w high
  and low frequency probes
• Visco-elastic behaviors of disordered systems and
  fluids
• New modes in complex fluids and confined systems
• Collective modes in lipid membranes and other
  biological systems
• 1-meV scientific case
• Relaxation processes in disordered systems
  (glasses, fluids, polymers )
• Phonons in single crystals, surfaces, thin films,
  high pressure systems, small samples, strongly
  correlated systems
• 1050-meV scientific case separate beamline for
  electronic excitations
• High flux experiments
• X-ray Raman combined with small beam for small
  samples on nanoscale, high pressure, high fields,
  low T
• Resonant inelastic scattering
• Low(er) resolution mode also desirable.

2
IXS Session (cont.)

• 2) What technical capabilities will these
  require? (Beamlines, endstations, undulators)
• Separate beamlines for 0.11 meV and 1050 meV
  and lower
• As long an insertion device as possible (check
  minimum energy with minimum allowable gap)
• Sample handling systems (microscopes, online and
  offline alignment system with unified mounting
  scheme)
• 1-meV resolution with clean resolution function
  at 10keV would be important
• Further improvement of resolution using position
  sensitive detector
• Focusing optics to achieve focus of the order of
  a few microns
• 3) Community size could be as large as neutron
  equivalent if user friendly
• 4) What detector requirements does this field
  have?
• 2D pixelated energy-resolving detector (require
  development)
• 5) What software and computing infrastructure
  requirements are there? (Control, data
  acquisition, analysis)
• User friendly with integration with position
  sensitive detector