Page 1
Metal Package PMT with Cooler
Photosensor Modules H7422 Series
The H7422 series are photosensor modules with an internal high-voltage power
supply circuit and a cooler installed to the metal package photomultiplier tube. Efficient cooling was achieved by placing the cooler near the photomultiplier tube to
reduce thermal noise emitted from the photocathode and a high S/N ratio can be
obtained even at extremely low light levels.
The H7422-40 has high sensitivity in the 300 nm to 720 nm wavelengths. The
H7422-50 is sensitive along a wide spectral range from 380 nm to 890 nm. The
H7422-01, H7422-02 and H7422-20 have a maximum output current value of 100
µA and so are extremely effective when measurements are needed over a wide
dynamic range. The photomultiplier tube is maintained at a constant temperature
by monitoring the output from a thermistor installed near the photomultiplier and
Heatsink with fan (A7423) sold separately
Product Variations
Type No.
H7422-40
H7422P-40
H7422-50
H7422P-50
H7422-01
H7422-02
H7422-20
Spectral Response
300 nm to 720 nm
380 nm to 890 nm
300 nm to 850 nm
300 nm to 870 nm
300 nm to 890 nm
Max. Output Signal Current
then regulating the current to the thermoelectric cooler.
Features
GaAsP photocathode, QE 40 % at peak
2 µA
wavelength, high gain (P type)
GaAs photocathode, QE 12 % at peak
wavelength, high gain (P type)
Multialkali photocathode
100 µA
Infrared-extended multialkali photocathode
Infrared-extended high-sensitivity multialkali photocathode
For photon counting
For photon counting
Specifications
Series
Parameter
Suffix
-40
-50
Input Voltage
Max. Input Voltage for Main Unit
Max. Input Current
for Main Unit
62
Max. Input Voltage for Thermoelectric Cooler
Max. Input Current for Thermoelectric Cooler
Max. Output Signal Current
Max. Control Voltage
Recommended Control Voltage Adjustment Range
Effective Area
Sensitivity Adjustment Range
Peak Sensitivity Wavelength
420 nm
Radiant Sensitivity
CathodeAnode
Radiant Sensitivity *
Dark Current
Ty p e
Standard
*
Radiant Sensitivity *
Dark Count
P Type
Rise Time *
1
2
*
Ripple Noise *1 *4 (peak to peak)
Settling Time *
5
1 *2
3
*
550 nm
800 nm
1
550 nm
Ty p.
Max.
3
550 nm
Ty p.
Max.
Max.
580
108
176
—
8.8 × 10
0.4
1.0
1.8 × 10
100
300
2
+0.5 to +0.8
5
1: 50
4
2.5 × 10
5
5.0 × 10
1.00
+0.9 (Input impedance 100 kΩ)
800
15
50
90
0.5
1.3
125
375
Operating Ambient Temperature
Storage Temperature
Weight
*1:
Control voltage = +0.8 V PMT setting temperature 0 °C, used with C8137-02 and A7432
*3: Plateau voltage, PMT setting temperature
*4: Cable RG-174/U, Cable length 450 mm,
*5: The time required for the output to reach a stable level following a change in the control voltage from +1.0 V to +0.5 V.
18
0 °C, used with C8137-02 and A7423
Load resistance = 1 MΩ, Load capacitance = 22 pF
H7422
+11.5 to +15.5
4
1.8 × 10
4
+5 to +35
-20 to +50
Approx. 400
-01
-02
+18
30
2.6
2.2
100
+0.25 to +0.8
7
4
1: 10
400
56
36
1.2
4
0.03
0.08
—
—
—
500
40
56
6.4
2.8 × 10
0.08
0.2
—
—
—
4
0.78
0.6
0.2
*2: After 30 minute storage in darkness
-20
630
40
72
46
3.6 × 10
0.1
0.25
—
—
—
Unit
—
V
V
mA
V
A
µA
V
V
mm
—
nm
mA/W
4
A/W
nA
A/W
-1
s
ns
mV
s
°C
°C
g
Page 2
Cooling Specifications
Current Output Type Photosensor Modules
Parameter
Cooling Method
6
Max. Cooling Temperature
Cooling Time *
*6:
Input current to thermoelectric cooler=2.0 A
6
(∆T) *
H7422 Series Unit
Thermoelectric cooling
35
Approx. 5
Characteristics (Cathode radiant sensitivity, Gain)
TPMOB0135EB TPMOB0136EA TPMOB0137EB
1000
100
H7422-40
10
1
H7422-01
H7422-02
H7422-50
H7422-20
CATHODE RADIANT SENSITIVITY (mA/W)
0.1
200 400 600 800 1000
WAVELENGTH (nm)
8
10
7
10
H7422P-40/-50
6
10
H7422-40/-50
5
10
GAIN
4
10
3
10
2
10
0.25 0.50.3 0.7 1.0 1.5
CONTROL VOLTAGE (V)
2.0
8
10
7
10
6
10
H7422-01/-02/-20
5
10
GAIN
4
10
3
10
2
10
0.25 0.50.3 0.7 1.0 1.5 2.0
CONTROL VOLTAGE (V)
—
°C
min
Block Diagram Dimensional Outlines (Unit: mm)
POWER INPUT
POWER INPUT for
THERMOELECTRIC
COOLER
THERMOELECTRIC
COOLER
THERMISTOR
PMT
HV POWER SUPPLY
VOLTAGE DIVIDER
CIRCUIT
Vcc
GND
SIGNAL OUTPUT
(CURRENT OUTPUT)
CONTROL VOLTAGE INPUT
(H7422-01, -02, -20: +0.25 V to +0.8 V)
(H7422-40, -50: +0.5 V to +0.8 V)
TPMOC0144EB
O-RING GROOVE
(S-28 O-RING INCLUDED)
9.5 ± 0.1
44.0 ± 0.2
56.0 ± 0.3
M25.4 P = 1/32"
C-MOUNT
8-M3 DEPTH: 2
18.5 ± 0.2 22.2 ± 0.2
4-M3B4-M2 DEPTH: 2
20.0 ± 0.2
36.0 ± 0.3
PHOTOCATHODE B
8-M3CA
20.0 ± 0.2
A
19.0 ± 0.2
25.0 ± 0.2
H7422-40/-50
A
16.3 ± 0.2
B
5
TAJIMI PRC03-23A10-7M
53.6 ± 0.225.4 ± 0.2
TOP VIEW
104 ± 1
SIDE VIEWFRONT VIEW
H7422-01/-02/-20
15.3 ± 0.3
7
SIGNAL OUTPUT
BNC-R
ACROSS SECTION
WINDOW
26.0 ± 0.2
15.0 ± 0.2
TAJIMI PRC03-23A10-7M
10.2
C-MOUNT
M25.4 P=1/32"
4.0 ± 0.1
6.4 ± 0.2
7.4 ± 0.2
B
CROSS SECTIONCCROSS SECTION
6.5 ± 0.2
M3
DEPTH: 4.0 Max.
GUIDE MARK
FA
G
EB
D
C
PHOTOCATHODE
7.2
PMT
14.8 ± 0.2
A
2.0
± 0.2
M3
DEPTH: 4.0 Max.
A: THERMISTOR 1
B: THERMISTOR 2
C: THERMOELECTRIC
COOLER +
D: THERMOELECTRIC
COOLER –
E: Vcc LOW VOLTAGE
INPUT(+15 V)
F: CONTROL VOLTAGE
INPUT
(H7422-01, -02, -20:
+0.25 V to +0.8 V)
(H7422-40, -50:
+0.5 V to +0.8 V)
G: GND
TPMOA0024EC
19
Page 3
Metal Package PMT with Cooler
H7422 Series option
1
HEATSINK with FAN
A7423
PHOTOSENSOR MODULE
H7422 SERIES
SAMPLE
OPTICAL
FIBER
DIRECT
C-MOUNT
LENS
4
OPTICAL FIBER
ADAPTER
A7412
5
C-MOUNT
ADAPTER
A7413
CABLES
(Supplied with M9012
or C8137-02)
3
SIGNAL CABLE
E1168-05
SOLD SEPARATELY
2
POWER SUPPLY UNIT
with TEMPERATURE
CONTROL M9012
Vcont-ADJ
Don't use
Vcont
GND
CHK4
CHK3
CHK2CHK1
CN04
CN5
1
6
2
5
3
4
SW2
CN03
6
POWER SUPPLY UNIT
with TEMPERATURE
CONTROL C8137-02
CN01
ON
SW1
ON
ON
INPUT
12 V
POWER INPUT
AC 100 V to
AC 240 V
● Heatsink with Fan A7423
The temperature of the H7422 outer case rises due to the thermoelectric cooler housed in the case. The A7423 heatsink efficiently radiates away this heat to prevent a temperature rise in
the H7422. The A7423 can be easily installed onto the H7422
with four M3 screws. Apply a heat conductive grease onto the
joint surface shared by the H7422 and A7423.
Parameter Value
Input Voltage
Input Current
During Lock
During Operation
Operating Voltage
Weight
●
Power Supply Unit with Temperature Control M9012
12
140
90
10.2 to 13.8
120
The M9012 is an on-board type power supply unit.
By just connecting to 12 V supply, the M9012 provides power
necessary to operate the H7422 series. The M9012 also
controls the thermoelectric cooler in the H7422 series so that
the output and noise can be maintained at constant levels
even when the ambient temperature changes. The
thermoelectric cooler and PMT operation can be controlled
from an external device by connecting it to the I/O connector
on the M9012.
Parameter Value
Max. Cooling Temperature (∆T)
Input Voltage
Max. Input Current
Max. Power Consumption
Main Circuit Output Voltage
Max. Output Current for Thermoelectric Cooler
Output Voltage for Fan
Max. Control Output Voltage
Max. Control Input Voltage
Control
Signal
Input Voltage
Error Signal
Output Voltage
LED Output
Thermoelectric Cooler
PMT
Fan
Thermoelectric Cooler
PMT
PMT
Error
Non-insulated TTL level input
Non-insulated TTL level input
Non-insulated TTL level input
Non-insulated TTL level output
Non-insulated TTL level output
Setting Cooling Temperature
Weight (excluding cables)
35
12
1.2
15.8
12
2.2
12
1.26
0.9
5
5
0
120
20
Unit
V
mA
mA
V
g
Unit
°C
V
A
V·A
V
A
V
V
V
—
—
V
°C
g
SIGNAL OUTPUT
TPMOC0145EC
● Signal Cable E1168-05
This signal cable is terminated with a BNC connector for easily connecting the H7422 to external equipment.
● Optical Fiber Adapter (FC Type) A7412
The A7412 is an FC type optical fiber connector that attaches
to the light input window of the H7422. The A7412 can easily
be secured in place with four M2 screws.
● C-Mount Adapter A7413
The A7413 mount adapter is used when a C-mount lens protruding 4 mm or more from the flange-back must be installed
onto the H7422.
●
Power Supply Unit with Temperature Control C8137-02
The C8137-02 is a power supply unit with a temperature control function. Just connecting to an AC source of 100 V to 240
V generates the output voltages for the thermoelectric cooler
and the A7423 fan, needed for operating the H7422. The photomultiplier tube temperature can be maintained to 0 °C by
monitoring the thermistor and regulating the output current for
the thermoelectric cooler. Control voltage can be varied by a
knob on the front panel.
Parameter Value
Max. Cooling Temperature (∆T)
Setting Cooling Temperature
(preset at factory)
Input Voltage
Input Voltage Frequency
Power Consumption
Main Circuit Output Voltage
Max. Current for Thermoelectric Cooler
Output Voltage for Fan
Control Voltage Adjustment Range
Weight
35
0 °C
AC 100 to AC 240
50/60
30
+15
2.2
12
0 to +0.9
1.1
Unit
°C
V
Hz
V·A
V
A
V
V
kg
Page 4
Current Output Type Photosensor Modules H7422 Series
Options (Unit: mm)
1
Heatsink with Fan A7423
LEAD LENGTH 50 ± 10
Optical Fiber Adapter (FC Type) A7412
4
4- 2.2
4 TAPERED DEPTH 1.5
M8 P=0.75
2.5
22.2 ± 0.2
52.0 ± 0.5
16.5 ± 0.3
TOP VIEW
4-M3 (SUPPLIED)
40 ± 1
24.5 ± 0.5
19.2 ± 0.3
Power Supply Unit with Temperature Control M9012
2
40.0 ± 0.1
CN01
53.6 ± 0.3
92.0 ± 0.5
SIDE VIEW
ON
GND
70.0 ± 0.1
SW1
SW2
4
3
5
2
6
1
CHK4
CHK3
CHK2CHK1
Don't use
Vcont
JST XMR-02V
TACCA0188ED
4-M2
15.0 ± 0.1
CN03
CN5
Vcont-ADJ
CN04
13.8 ± 0.2
28.0 ± 0.2
50.0 ± 0.2
17.5 ± 0.2
5.0 ± 0.1
100.0 ± 0.3
FAN CABLE
1500 ± 50
MODULE CABLE
1500 ± 50
9.5
15
3.0
4-M2 L=3
FRONT VIEW
C-Mount Adapter A7413
5
5.5 3
9
SIDE VIEW
LIGHT SHIELD SHEET
(THICKNESS: 0.5)
TACCA0190EB
8
30
M25.4 P=1/32" C-MOUNT
22
M25.4 P=1/32" C-MOUNT
4
14
Power Supply Unit with Temperature Control C8137-02
6
TACCA0191EA
POWER SWITCH
CONTROL VOLTAGE
ADJUSTABLE DIAL
ON
ON
16.0 ± 0.5
PHOTOSENSOR
SWITCH
CONTROL VOLTAGE DISPLAY
FRONT VIEW
428
46.0 ± 0.5
212 ± 1 12.5
SIDE VIEW
POWER CABLE
1000 ± 50
EXTERNAL
I/O CABLE
EXTERNAL
I/O HOUSING
Signal Cable E1168-05
3
1000 ± 50
1500
MODULE OUTPUT
FAN OUTPUT
AC INPUT
FUSE
REAR VIEW
TACCA0251EA
+50
-0
BNC-PBNC-P
TACCA0148EA
POWER CABLE
FAN CABLE
AC CABLE
+50
1500
-0
+50
1500
-0
1800 to 2000
TACCA0238EB
21
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