Datasheet

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
photomultiplier tube is maintained at a constant temperature by monitoring the
output from a thermistor installed near the photomultiplier and then regulating the
current to the thermoelectric cooler.
Heatsink with fan (A7423) sold separately
Product Variations
Type No. Spectral Response Max. Output Signal Current
H7422-40
300 nm to 720 nm
H7422P-40
2 µA
H7422-50
380 nm to 890 nm
H7422P-50
Features
GaAsP photocathode, QE 40 % at peak
wavelength, high gain (P type)
GaAs photocathode, QE 12 % at peak
wavelength, high gain (P type)
For photon counting
For photon counting
This product can't be used at vacuum environment or reduced pressure environment.
Specifications
Parameter
P Type Standard
Type
Anode
Cathode
Input Voltage
Max. Input Voltage for Main Unit
Max. Input Current for Main Unit
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 Typ. 550 nm
800 nm
Radiant Sensitivity *1 Typ. 550 nm
Typ.
Dark Current *1 *2
Max.
Radiant Sensitivity *3 Typ. 550 nm
Typ.
Dark Count *2 *3
Max.
Typ.
Rise Time *1
1
4
Ripple Noise * * (peak to peak) Max.
Typ.
Settling Time *5
Operating Ambient Temperature *6
Storage Temperature *6
Weight
(at +25 °C)
H7422-40
H7422-50
+11.5 to +15.5
+18
62
2.6
2.2
2
+0.9 (Input impedance 100 kΩ)
+0.5 to +0.8
5
1: 50
800
15
50
90
2.5 × 104
0.5
1.3
5.0 × 104
125
375
580
108
176
—
8.8 × 104
0.4
1.0
1.8 × 105
100
300
1.00
0.6
0.2
+5 to +35
-20 to +50
Approx. 400
*1: Control voltage = +0.8 V PMT setting temperature 0 °C, used with C8137-02 and A7423
*2: After 30 minutes storage in darkness
*3: Plateau voltage = control voltage, PMT setting temperature 0 °C, used with C8137-02 and A7423
*4: Cable RG-174/U, Cable length 450 mm, Load resistance = 1 MΩ, Load capacitance = 22 pF
*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.
*6: No condensation
18
Unit
V
V
mA
V
A
µA
V
V
mm
—
nm
mA/W
A/W
nA
A/W
s-1
ns
mV
s
°C
°C
g
Current Output Type Photosensor Modules
Cooling Specifications
H7422 Series
Thermoelectric cooling
35
Approx. 5
Parameter
Cooling Method
Max. Cooling Temperature (∆T) *7
Cooling Time *7
Unit
—
°C
min
*7: Input current to thermoelectric cooler=2 A
Characteristics (Cathode radiant sensitivity, Gain)
TPMOB0135EC
107
1000
TPMOB0136EC
H7422P-40/-50
106
100
H7422-40/-50
GAIN
10
105
H7422-50
104
1
600
800
103
0.5
1000
0.6
WAVELENGTH (nm)
0.7
POWER INPUT
TAJIMI PRC03-23A10-7M
THREADED HOLE
for A7423 (8-M3 DEPTH: 2)
ACROSS SECTION
PHOTOCATHODE
15.0 ± 0.2 26.0 ± 0.2
22.2 ± 0.2
WINDOW
SIGNAL OUTPUT
(CURRENT OUTPUT)
O-RING GROOVE
(S-28 O-RING INCLUDED)
THREADED HOLE
for A7412 (4-M2 DEPTH: 2)
In order to protect the PMT module from being damaged by
excessive light, the H7422-40/50 has a protective function
circuit. The circuit automatically turns off high voltage if the
output current exceeds the preset current limit (approx. 10
µA). This protection circuit works whenever the preset current limit is exceeded, even for a short moment. An example of this function could be in applications such as laser
scanning microscopes where the output current may momentarily exceed the preset current limit. This will trigger
the protection circuit and interrupt measurement. In such
applications, if the average output current is lower than the
PMT module maximum rating (2 µA), we can change the
current limit in the protection circuit up to approximately 50
µA. This means that PMT module operation continues without turning off high voltage even if a momentary high output
occurs. Users can choose this option when ordering.
9.5 ± 0.1
44.0 ± 0.2
56.0 ± 0.3
FRONT VIEW
53.6 ± 0.2
TOP VIEW
PHOTOCATHODE 5
A
8-M3C
20.0 ± 0.2
20.0 ± 0.2
36.0 ± 0.3
TPMOC0144EB
25.4 ± 0.2
PMT
4.0 ± 0.1
SIGNAL OUTPUT
BNC-R
6.4 ± 0.2
7.4 ± 0.2
A
14.8 ± 0.2
16.3 ± 0.2
MOUNTING THREADED
HOLE (4-M3B)
9.5 ± 0.1
CONTROL VOLTAGE INPUT
(+0.5 V to +0.8 V)
18.5 ± 0.2
PMT
HV POWER SUPPLY /
VOLTAGE DIVIDER
CIRCUIT
GND
1.0
Dimensional Outlines (Unit: mm)
POWER INPUT for
THERMOELECTRIC
THERMISTOR
COOLER
Vcc
0.9
CONTROL VOLTAGE (V)
Block Diagram
THERMOELECTRIC
COOLER
0.8
7.2
400
10.2
0.1
200
M25.4 P=1/32"
C-MOUNT
CATHODE RADIANT SENSITIVITY (mA/W)
H7422-40
M25.4 P = 1/32"
C-MOUNT
BCROSS SECTION
6.5 ± 0.2
M3
DEPTH: 4.0 Max.
CCROSS SECTION
2.0
± 0.2
M3
DEPTH: 4.0 Max.
GUIDE MARK
16.3 ± 0.2
19.0 ± 0.2 25.0 ± 0.2
F
104 ± 1
SIDE VIEW
A
E G
D
B
C
TAJIMI PRC03-23A10-7M
A: THERMISTOR 1
B: THERMISTOR 2
C: THERMOELECTRIC
COOLER +
D: THERMOELECTRIC
COOLER –
E: LOW VOLTAGE
INPUT(+15 V)
F: CONTROL VOLTAGE
INPUT
(+0.5 V to +0.8 V)
G: GND
TPMOA0024ED
19
Metal Package PMT with Cooler
H7422 Series Option
1
SOLD SEPARATELY
POWER SUPPLY UNIT
with TEMPERATURE
CONTROL M9012
Vcont
CHK2
Vcont-ADJ
Don't use
CHK3
CHK4
CN04
6
CN5
2345
SW2
ON
SW1
POWER SUPPLY UNIT
with TEMPERATURE
CONTROL C8137-02
5
C-MOUNT
LENS
CN03
6
DIRECT
SAMPLE
INPUT
12 V
1
CABLES
(Supplied with M9012
or C8137-02)
GND
2
CHK1
OPTICAL
FIBER
HEATSINK with FAN
A7423
CN01
4
OPTICAL FIBER
ADAPTER
A7412
C-MOUNT
ADAPTER
A7413
PHOTOSENSOR MODULE
H7422 SERIES
3
SIGNAL CABLE
E1168-05
POWER INPUT
AC 100 V to
AC 240 V
ON
ON
SIGNAL OUTPUT
● Heatsink with Fan A7423
● Signal Cable E1168-05
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.
This signal cable is terminated with a BNC connector for easily connecting the H7422 to external equipment.
Parameter
Input Voltage
During Lock
Input Current
During Operation
Operating Voltage
Weight
Value
12
140
90
10.2 to 13.8
120
Unit
V
mA
mA
V
g
● Power Supply Unit with Temperature Control M9012
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
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
Thermoelectric Cooler
Control
PMT
Signal
Input Voltage Fan
Error Signal Thermoelectric Cooler
Output Voltage PMT
PMT
LED Output
Error
Setting Cooling Temperature
Weight (excluding cables)
20
TPMOC0145EC
Description / Value
35
12
1.2
15.8
12
2.2
12
1.26
0.9
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
5
5
0
120
Unit
°C
V
A
V·A
V
A
V
V
V
—
—
V
°C
g
● 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
Max. Cooling Temperature (∆T)
Setting Cooling Temperature
(preset at factory)
AC 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
Value
35
Unit
°C
0
°C
100 to 240
50 / 60
30
+15
2.2
12
0 to +0.9
1.1
V
Hz
V·A
V
A
V
V
kg
Current Output Type Photosensor Modules H7422 Series
Options (Unit: mm)
1 Heatsink with Fan A7423
4 Optical Fiber Adapter (FC Type) A7412
LEAD LENGTH 50 ± 10
4- 2.2
4 TAPERED DEPTH 1.5
16.5 ± 0.3 22.2 ± 0.2
52.0 ± 0.5
2.5
M8 P=0.75
3.0
9.5
TOP VIEW
5.5 3
4-M2 L=3
15
LIGHT SHIELD SHEET
(THICKNESS: 0.5)
9
FRONT VIEW
SIDE VIEW
TACCA0190EB
8
30
SIDE VIEW
TACCA0188ED
22
JST XMR-02V
92.0 ± 0.5
M25.4 P=1/32" C-MOUNT
53.6 ± 0.3
5 C-mount Adapter A7413
M25.4 P=1/32" C-MOUNT
19.2 ± 0.3
40 ± 1
24.5 ± 0.5
4-M3 (SUPPLIED)
4
14
2 Power Supply Unit with Temperature Control M9012
4-M2
15.0 ± 0.1
70.0 ± 0.1
TACCA0191EA
28.0 ± 0.2
2345
50.0 ± 0.2
CN03
SW2
1
POWER SWITCH
13.8 ± 0.2
SW1
ON
CN01
6
40.0 ± 0.1
6 Power Supply Unit with Temperature Control C8137-02
PHOTOSENSOR
SWITCH
CONTROL VOLTAGE
ADJUSTABLE DIAL
ON
CN04
CN5
CHK1
CHK2
GND
Vcont
CHK3
CHK4
ON
Don't use
Vcont-ADJ
5.0 ± 0.1
17.5 ± 0.2
CONTROL VOLTAGE
DISPLAY
16.0 ± 0.5
100.0 ± 0.3
FRONT VIEW
8
1500 ± 50
42
46.0 ± 0.5
FAN CABLE
MODULE CABLE
212 ± 1
1500 ± 50
12.5
SIDE VIEW
MODULE OUTPUT
POWER CABLE
AC INPUT
1000 ± 50
EXTERNAL
I/O CABLE
1000 ± 50
FAN OUTPUT
FUSE
REAR VIEW
EXTERNAL
I/O HOUSING
TACCA0251EA
POWER CABLE
+50
1500 -0
FAN CABLE
+50
3 Signal Cable E1168-05
1500 -0
AC CABLE
BNC-P
1500
+50
-0
BNC-P
1800 to 2000
TACCA0148EA
TACCA0238EB
21
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