PROCEDURE:

The instrument is aimed to observe at 30degrees a white reflectance screen, illuminated normally by a 1kiloWatt FEL lamp at a distance of 48cm.    First a set of 50 dark scans is obtained.  Next, a set of 50 background scans is obtained by placing an obscuration between the lamp and the screen.  Thus, the instrument views a screen illuminated only by light scattered onto it from the room.  A set 50 spectral scans is then obtained of the lamp-illuminated screen (no obscuration).  Finally a set of 50 dark scans is obtained again.

FILE DESCRIPTIONS:

  VIRS_FEL_D1_DARK1_N4__20030708_231043.rec
set of 50 dark scans

  VIRS_FEL_D1_BACK1_N5__20030708_231301.rec
set of 50 background scans

  VIRS_FEL_D1_SPEC1_N7__20030708_231706.rec
set of 50 spectral scans

  VIRS_FEL_D1_DARK1_N9__20030708_232123.rec
set of 50 dark scans

  calibration_lamp_spectral_irradiance_F540.txt
ASCII text file containing the irradiance data of the source