HAMAMATSU R5108 Datasheet

PHOTOMULTlPLlER TUBE

R5108

28mm (1-1/8 Inch) Transmission Mode S–1 Photocathode, Side–on Type

FEATURES

Wide Photocathode
High Infrared Sensitivity

Excellent Spatial Uniformity
Fast Time Response

APPLICATIONS

Near Infrared Spectrophotometer
Raman Spectrophotometer

Photo Luminescence Measurement

GENERAL

Figure 1: Electron Trajectories

Parameter Description Unit

Spectral Response
Wavelength of Maximum Response

Photocathode

MateriaI

Minimum Effective Area
Window Material
Dynode

Structure

Number of Stages
Direct Interelectrode Capacitances

Anode to Last Dynode

Anode to All Other Electrodes
Base

SuitabIe Socket
Applicable Socket Assembly

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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. © 1994 Hamamatsu Photonics K.K.

400 to 1200 nm

800

Ag–O–Cs

16(H) 18(W)

Borosilicate glass

Circular-cage

9

1.2 pF

3.4 pF

11-pin base

JEDEC No. B11-88

E678–11A (option)

E717–21 (option)

nm

mm

PHOTOELECTRONS

2nd DYNODE

LIGHT

PHOTOCATHODE

1st DYNODE

3rd DYNODE

GLASS
BULB

FOCUSING
ELECTRODES

TPMSC0003EB

PHOTOMULTlPLlER TUBE R5108

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter Value Unit

Supply Voltage

Between Anode and Cathode
Between Anode and Last Dynode

Average Anode Current

A

1500

250

0.1

CHARACTERISTlCS (at 25 )

Parameter Typ.Min. Max. Unit

Cathode Sensitivity

Quantum Efficiency at 1060nm 0.04
Luminous
Radiant at 800nm

Anode Sensitivity

Luminous

Gain
Anode Dark Current

(after 30min. storage in the darkness)
Time Response

Anode Pulse Rise Time
Electron Transit Time

B

10

25

2.2

C

C

D

E

F

3.5 7.5

3.0 10

1.2
18

5

1000350

Vdc
Vdc

mA

%
A/lm
mA/W

A/lm

nA

ns
ns

NOTES

A:

Averaged over any interval of 30 seconds
maximum.

B:

The light source is a tungsten filament lamp
operated at a distribution temperature of 2856K.
Supply voltage is 150 volts between the cathode
and all other electrodes connected together as
anode.

C:

Measured with the same light source as Note B
and with the voltage distribution ratio shown in
Table 1 below.

Table 1:Voltage Distribution Ratio

Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 P
Ratio

SuppIy Voltage : 1250Vdc
K : Cathode, Dy : Dynode, P : Anode

D:

Measured at the voltage which gives anode
luminous sensitivity of 4A/lm.

E:

The rise time is the time for the output pulse to
rise from 10% to 90% of the peak amplitude when
the entire photocathode is illuminated by a delta
function light pulse.

F:

The electron transit time is the interval between
the arrival of delta function light pulse at the
entrance window of the tube and the time when
the anode output reaches the peak amplitude. In
measurement, the whole photocathode is
illuminated.

1111111111

Figure 2: Typical Spatial Uniformity

Y

SPOTSIZE : 1mm DIA
SUPPLY VOLTAGE : 1000V

X

WAVELENGTH : 400nm

100

80

60

40

20

RELATIVE SENSITIVITY (%)

X-Axis

0

84 04

DISTANCE FROM CENTER OF
PHOTOCATHODE (mm)

Y-Axis

9

8

4.5

DISTANCE FROM CENTER OF
PHOTOCATHODE (mm)

0

4.5

9

TPMSB0066EA

100

80

60

40

20
0

RELATIVE SENSITIVITY (%)