HAMAMATSU H7155-20, H7155 Datasheet

Metal package PMT

Photon Counting Head H7155 Series

The H7155 series are compact photon counting head devices consisting of a
metal package photomultiplier tube along with a high-speed photon counting
circuit and a high-voltage power supply circuit. The high voltage supply for
photomultiplier tube and the discriminator level are preset to optimum values,
allowing photon counting measurement by just connecting a +5 V supply.
The H7155-20 has an internal prescaler of division by 4. This prescaler im­proves the count linearity 4-fold compared to the H7155.

Product Variations

Type No.

H7155
H7155-20

Spectral Response

300 nm to 650 nm

Prescaler

No

Ye s

Specifications

Parameter

Input Voltage
Max. Input Voltage
Max. Input Current
Effective Area
Peak Sensitivity Wavelength

300 nm

Count Sensitivity

400 nm
500 nm
600 nm

Count Linearity *

Dark Count *

1

3

Ty p.
Max.

Pulse-pair Resolution
Output Pulse Width

Ty p.

Output Pulse Height *

4

Min.

Recommended Load Resistance
Signal Output Logic

Operating Ambient Temperature
Storage Temperature
Weight

*1: Random pulse, at 10 % count loss
*2: Output count will be decreased to 1/4 after the prescaler.
*3: After 30 minute storage in darkness
*4: With input voltage +5 V, Load resistance 50 Ω and Coaxial cable RG-174/U (450 mm)

H7155

50

1.2 × 10

2.7 × 10

2.2 × 10

2.1 × 10

1.5 × 10
100
500

70
30

3.6

3.0

+4.5 to +5.5

5

5

5

4

6

Positive logic

+5 to +40

-20 to +50

+6

8

420

50

75

H7155-20

70

100 *
500 *

5 *2

2

2

2

2

2

2

1.2 × 10

2.7 × 105 *

2.2 × 105 *

2.1 × 104 *
10 × 106 *

10

Depends on count rate.

2.2

2.0

s

Unit

mA

mm

nm

-1

·pW

s

s

ns
ns

—

°C
°C

V
V

-1

-1

-1

V

Ω

g

38

Characteristics (Count sensitivity, Dark count)

TPHOB0040EC TPHOB0047EA

6

10

)

-1

·pW

5

10

-1

H7155

4

10

Photon Counting Heads

5

10

4

10

)

-1

3

10

2

10

DARK COUNT (s

H7155

COUNT SENSITIVITY (s

3

10

200 300 400

600 700 800 900500

WAVELENGTH (nm)

Block Diagram

PMT

HV POWER SUPPLY

VOLTAGE DIVIDER

CIRCUIT

AMP

COMPARATOR

+

-

LLD.

POWER INPUT

PULSE

SHAPER

+5 VGND

Dimensional Outlines

9.4

50.0 ± 0.5

30.0 ± 0.20.5 10

WINDOW

PHOTOCATHODE

4-M3 DEPTH: 4

450 ± 20

22.0 ± 0.5

14.0 ± .0.2

4

18

14.0 ± .0.2

50.0 ± 0.5

4-M2 DEPTH: 4

POWER CABLE (SUPPLIED)

EFFECTIVE AREA
( 8 MIN.)

FRONT VIEW SIDE VIEW REAR VIEW

POWER INPUT CONNECTOR
HIROSE HR10A-7P-4S

OUTPUT

RL

POSITIVE

50 Ω

LOGIC

(Unit: mm)

POWER INPUT CONNECTOR
HIROSE HR10A-7R-4P

40.0 ± 0.2 5

SIGNAL OUTPUT
BNC-R CONNECTOR

Vcc (+5 V)

GND SHIELD

TO
PULSE
COUNTER

TPHOC0035ED

1: Vcc +5 V
2: GND
3: IC*
4: IC*

*IC: Internal Connection
(Do not use)

15 20

TPHOA0017ED

1

10

0

10

5 10152025303540

TEMPERATURE (°C)

Option

(Optical Fiber Adapter) (Unit: mm)

E5776 (FC Type)

E5776-51 (SMA Type)

4-M2

4-M2

22.0 ± 0.5

14.0 ± 0.2

22.0 ± 0.5

14.0 ± 0.2

FC-R

SMA

8.5 3.5 ± 0.2

SIDE VIEWFRONT VIEW

10.7 5.0

3.0

SIDE VIEWFRONT VIEW

TACCA0055EA

TACCA0239EA

39