Beamline 2: Spectrometer Calibrations

Absolute irradiance calibrations based on the calculability of synchrotron radiation are performed on beamline 2.

• Undispersed synchrotron radiation and instrument aperture are used as a standard of irradiance
• First experimental station is located 11.6 m from the tangent point (2 gimbals mounted on a milling  table)
  
• Class 10,000 clean room access to large chamber, located 17.9 m from the tangent point (gimbals inside of the chamber allow instrument rotation; the whole chamber can be translated)
  
• Calibrations provided from 2 nm to 400 nm with uncertainty from 0.6% to < 0.1%
• Clean, hydrocarbon free vacuum to avoid instrument contamination
  
• Calibration of ultraviolet and extreme-ultraviolet detector packages for NASA contractors