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  3. TXI - Tender X-ray Instrument
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TXI Specifications

TXI, the NEH 1.2 instrument, will be configured to operate on both the soft X-ray undulator (SXU) and the hard X-ray undulator (HXU) sources with the following configuration requirements:

  • Fixed X-ray beam trajectories
  • Ability to focus the two sources simultaneously into a single micron diameter interaction point where the experimental endstation will be positioned.
  • Ability to efficiently change experimental endstations.

     

X-ray Requirements

  • Focusing: KB mirrors with 2 stripes (Nickel and Boron Carbide)
    • 1.5 μm in vertical
    • 0.8 μm in horizontal
    • KB's can be removed for unfocused operation or Zone plate operation
  • Photon Energy Range:
    • Soft X-ray Undulator Branch Line
      • 250 eV to 5 keV
      • Harmonic Rejection between 1.4 and 5 keV
    • Hard X-ray Branch Line
      • 1 keV to 7 keV
      • Harmonic Rejection between 2.2 and 7 keV
  • Allows both copper and superconducting accelerator operations
  • Allows simultaneous undulator operations for X-ray pump and X-ray probe operations
  • Beamline transmission 60 to 90% depending on operation mode
  • Repetition rate: up to 929 kHz (including 120 Hz Cu operations)

TXI INSTRUMENT TEAM

Andy Aquila

Scientist
(650) 926-2682
aquila@slac.stanford.edu

Serge Guillet

Engineer
(650) 926-4771
sguillet@slac.stanford.edu

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