Versions Compared

Key

  • This line was added.
  • This line was removed.
  • Formatting was changed.

...

  • Switch to the new reference foil or compound.  Reference foils are in the small wooden box of foils at the beam line. 
    • Low-energy configuration (E < 5 keV, using low-Z box with bellows or cryostream bag)
      • Move CALVERT to out position (CALVERT = 4).
      • Open feedthrough for motorized vertical CALVERT holder by loosening and removing C-clamp. 
      • Pull feedthrough out completely.
      • Remove sample holder plate for old reference foil or compound and press new reference onto double stick tape on mount.  Align holes on plate to holes on mount.
      • Re-insert CALVERT holder and replace and tighten C-clamp. 
      • Attach I2 cable to BNC connector below motorized vertical CALVERT holder.
    • High energy configuration (E > 4.9 keV, not using low-Z box with bellows or cryostream bag)
      • For samples which will transmit beam through them, place foil in holder in front of I2 ion chamber.  Attach I2 signal cable to I2 ion chamber.
      • For thick or non-transmitting samples, insert foil in the scatter holder before on top of I0 ion chamber.   Attach I2 signal cable to photodiode cable on scatter holder.
  • Make sure there are no samples or holders blocking the beam path through to I2.

...