HAMAMATSU H7828-01, H7828 Datasheet
Compact Head-on PMT
Photon Counting Head H7828 Series
The H7828 series are photon counting head devices using a 19 mm (3/4") diameter head-on photomultiplier tube, high-speed photon counting circuit, and
high-voltage power supply circuit. The high voltage supply for photomultiplier
tube and the discrimination level are preset to optimum levels, allowing photon
counting measurement by just connecting a +5 V supply. Despite its compact
size, the effective photosensitive area is as large as 15 mm in diameter, so the
incident light can be collected very efficiently. Compared to other PMT modules, the H7828 series devices have higher resistance to vibration and shock,
making them suitable for portable or mobile measurement equipment. Two
types of photomultiplier tubes with different spectral response characteristics
are provided for measurement in the visible range or visible to near IR range.
Product Variations
Type No.
H7828
H7828-01
Spectral Response Features
300 nm to 650 nm
300 nm to 850 nm
For visible range
For visible to near IR range
Specifications
Parameter
Input Voltage
Max. Input Voltage
Max. Input Current
Effective Area
Peak Sensitivity Wavelength
300 nm
Count
Sensitivity
Ty p.
400 nm
500 nm
600 nm
700 nm
Count Linearity *
Dark Count *
1
2
Ty p.
Max.
420
2.1 × 10
3.6 × 10
2.8 × 10
5.0 × 10
—
200
500
5
5
5
4
Pulse-pair Resolution
Output Pulse Width
Ty p.
Output Pulse Height *
Recommended Load Resistance
3
Min.
Signal Output Logic
Operating Ambient Temperature
Storage Temperature
Weight
*1: Random pulse, at 10 % count loss
*2: After 30 minute storage in darkness
*3: With input voltage +5 V, Load resistance 50 Ω and Coaxial cable RG-174/U (450 mm)
+4.5 to +5.5
1.5 × 10
Positive logic
+5 to +40
-20 to +50
+6
60
15
70
30
3.5
3.0
50
70
H7828-01H7828
Unit
V
V
mA
mm
380
1.7 × 10
2.1 × 10
1.6 × 10
1.0 × 10
5.9 × 10
6
5
5
5
5
4
2000
3500
nm
-1
-1
s
·pW
-1
s
-1
s
ns
ns
V
Ω
—
°C
°C
g
46
Characteristics (Count sensitivity, Dark count)
TPHOB0051EA TPHOB0052EA
6
10
)
-1
pW
.
-1
5
10
H7828
4
10
H7828-01
Photon Counting Heads
5
10
4
10
)
-1
3
10
2
10
DARK COUNT (s
H7828-01
H7828
COUNT SENSITIVITY (s
3
10
200 400 600 800300 500 700 900
WAVELENGTH (nm)
Block Diagram
PMT
HV POWER SUPPLY
VOLTAGE DIVIDER
CIRCUIT
AMP
COMPARATOR
POWER INPUT
+
-
LLD.
1
10
0
10
10 20 30 405 152535
AMBIENT TEMPERATURE (°C)
PULSE
SHAPER
+5 VGND
OUTPUT
POSITIVE
LOGIC
TO
PULSE COUNTER
RL
50 Ω
TPHOC0035ED
Dimensional Outlines
(Unit: mm)
EFFECTIVE AREA
( 15 MIN.)
+0.5
26.0
13.0 ± 0.5
- 0
+1.0
50.0
14.0 ± 0.5
- 0
25.0 ± 0.5
+0.1
-0.3
18.6 ± 0.7
18
4-M2
+0.5
56.00
- 0
DEPTH: 5
10.0 ± 0.5
16.0 ± 0.5
2-M3
DEPTH: 5
SIDE VIEWFRONT VIEW REAR VIEW
Power cable with connector (HIROSE HR10A-7P-6S) is supplied with H7828 series
700 ± 20
18.0 ± 0.519.0 ± 0.5
BLACK
: GND
RED
: LOW VOLTAGE INPUT (+5 V)
SIGNAL OUTPUT
BNC-R
POWER INPUT CONNECTOR
HIROSE HR10A-7R-6P
1: Vcc +5 V
2: GND
3: IC*
4: IC*
5: NC
6: NC
* Internal Connection (Do not use)
TPHOA0028EB
47
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