R12857 Datasheet, PDF (1/2 Pages) Hamamatsu Corporation – 13 mm (1/2 inch) diameter, 9-stage, High QE multialkali photocathode

PHOTOMULTIPLIER TUBE
R12857
13 mm (1/2 inch) diameter, 9-stage, High QE multialkali photocathode
Side-on type, 185 nm to 900 nm spectral response
SPECIFICATIONS
GENERAL
Parameter
Description/Value
Unit
Spectral response
185 to 900
nm
Wavelength of maximum response
450
nm
Photocathode
MateriaI
Minimum effective area
Multialkali
4 × 13
—
mm
Window material
UV glass
—
Dynode
Structure
Number of stages
Circular-cage
9
—
—
Weight
Approx. 5.4
g
Operating ambient temperature
-30 to +50
°C
Storage temperature
-30 to +50
°C
SuitabIe socket
E678–11U
—
MAXIMUM RATINGS (Absolute maximum values)
Parameter
Value
Unit
Supply Between anode and cathode
1250
V
voltage Between anode and last dynode
150
V
Average anode current
0.01
mA
Figure 1: Typical spectral response
TPMSB0217EA
1000
CATHODE RADIANT
SENSITIVITY
CHARACTERISTlCS (at 25 °C)
Parameter
Min.
Luminous (2856 K)
620
Radiant at 450 nm
—
Cathode Quantum
sensitivity efficiency at 780 nm
—
Blue sensitivity Index
(CS 5-58)
—
Anode
Luminous (2856 K)
400
sensitivity _{Radiant at 450 nm}
—
Gain
—
Anode dark current
(After 30 min storage in darkness)
—
Time
Anode pulse rise time
—
response Electron transit time
—
Typ.
650
109
10
15.0
2600
4.3 × 10⁵
4.0 × 10⁶
3
1.4
15
Max.
—
—
—
—
—
—
—
10
—
—
Unit
µA/lm
mA/W
%
—
A/lm
A/W
—
nA
ns
ns
100
10
QUANTUM
EFFICIENCY
1
0.1
0.01
100 200 300 400 500 600 700 800 900 1000
WAVELENGTH (nm)
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 P
Ratio
1
1
1
1
1
1
1
1
1
1
Supply voltage: 1000 V, K: Cathode, Dy: Dynode, P: Anode
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Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are
subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2016 Hamamatsu Photonics K.K.