! Quantum efficiency versus wavelength
! bi-alkali photocathode and lime-glass window
! based on figure for the XP4512B from the Photonis catalog
! (predecessor to the XP4572)
!
!Lambda         QE for lime glass window
! (nm)          (percent)
!
200             0.
250             0.
280             .1
290             .3
300             3
315             10
330             20
350             27.5
400             26
480             20
540             10
590             3
615             1
640             .3
660             .1