R7401P 查看數據表（PDF） - Hamamatsu Photonics
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R7401P Datasheet PDF : 8 Pages
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METAL PACKAGE PHOTOMULTIPLIER TUBE R7400U SERIES
Figure 8: Transmittance of Lens
TPMSB0137EB
100
90
80
70
60
50
40
30
20
10
0
200
300
400
500
600
700
800
900
WAVELENGTH (nm)
Figure 9: Lens Effect
100
50
07 5
0
57
X-AXIS(mm)
WITH LENS
WITHOUT LENS
ANODE SENSITIVITY (%)
0
50
100
7
5
0
5
LENS
7
MEASUREMENT CONDITIONS
WAVELENGTH : 400 nm
SUPPLY VOLTAGE : -800 V
A 1 mm diameter spot light (parallel light) is scanned
at the center of the photocathode in X and Y directions.
TPMHC0153EB
Figure 10: Lens Effect
R7401
TPMHB0461EB
300
250
WITH LENS • PARALLEL LIGHT
200
WITH LENS • DIFFUSED LIGHT
150
WITHOUT LENS
100
50
0
300
SUPPLY VOLTAGE: -800 V
400
500
600
700
WAVELENGTH (nm)
R7402
TPMHB0462EB
300
250
WITH LENS • PARALLEL LIGHT
200
WITH LENS • DIFFUSED LIGHT
150
WITHOUT LENS
100
50
0
300 400
SUPPLY VOLTAGE: -800 V
500
600
700
800
850 900
WAVELENGTH (nm)
Parallel light : Parallel light from a 40 mm diameter parallel light source insuring uniform
intensity over the entire active area of the photomultiplier tube.
Diffused light: Diffused light from a 40 mm diameter parallel light source and a diffuser placed
10cm from the detector. The entire active area of the PMT is exposed.
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