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Message ID: 42     Entry time: 10/28/2004 01:29:24 PM
 Author: Klaus Grimm 
 Type: Simulation 
 Category: Other 
 Subject: PMT quantum efficiency of cerenkov detector 
 Record date: 10/28/2004 01:25:56 PM 
 Quantum efficiency versus wavelength
! bi-alkali photocathode and lime-glass window

Neven gave me this info:

! QE_XP4572_bialkali_limeglass
! 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


Quantum efficiency versus wavelength
! bi-alkali photocathode and 3 window types
!based on a figure for the 9107B by Electron Tubes (a blue-optimized pmt)
!
!Lambda         QE(silica)      QE(UV glass)    QE(borosilicate)
100.            0.              0.              0.
125.             0.              0.              0.
150.            .5              0.              0.
175.            22.             .5              0.
200.            27.5            7.5             0.
225.            26.             15.             0.
250.            22.5            22.5            0.
275.            24.             24.             .5
300.            27.             27.             13.
325.            27.5            27.5            26.
350.            27.6            27.6            27.5
375.            27.5            27.5            27.5
400.            26.5            26.5            26.5
425.            24.5            24.5            24.5
450.            21.5            21.5            21.5
475.            17.5            17.5            17.5
500.            14.             14.             14.
525.            10.             10.             10.
550.            5.5             5.5             5.5
575.            2.              2.              2.
600.            .5              .5              .5
625.            0.              0.              0.
Attachment 1: QE_XP4572_bialkali_limeglass.dat  554 Bytes  | Hide | Hide all
! 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
Attachment 2: QE_3windows_bialkali.dat  1 kB  | Hide | Hide all
!Quantum efficiency versus wavelength
! bi-alkali photocathode and 3 window types
!based on a figure for the 9107B by Electron Tubes (a blue-optimized pmt)
!
!Lambda         QE(silica)      QE(UV glass)    QE(borosilicate)
100.            0.              0.              0.
125.             0.              0.              0.
150.            .5              0.              0.
175.            22.             .5              0.
200.            27.5            7.5             0.
225.            26.             15.             0.
250.            22.5            22.5            0.
275.            24.             24.             .5
300.            27.             27.             13.
325.            27.5            27.5            26.
350.            27.6            27.6            27.5
375.            27.5            27.5            27.5
400.            26.5            26.5            26.5
425.            24.5            24.5            24.5
450.            21.5            21.5            21.5
475.            17.5            17.5            17.5
500.            14.             14.             14.
525.            10.             10.             10.
550.            5.5             5.5             5.5
575.            2.              2.              2.
600.            .5              .5              .5
625.            0.              0.              0.

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