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

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