The H7680/-01 PMT modules are capable of high-speed, high-repetition ga-

ted operation. An optimum design in the combination of circuit and photomul-

tiplier tube delivers excellent gating characteristics including a minimum gate

width of 30 ns (H7680-01), 100 kHz repetition rate, and a gate extinction ratio

porating high-voltage power suppy circuit. And, the incorporated PMT gain

can be controled by adjusting the control voltage between +2 V to +5 V.

52

Product Variations

Specifications

Gated PMT Modules

H7680/-01

Type No.

Parameter

H7680 / H7680-01

H7680

H7680-01

Supply Voltage

Max. Input Voltage

Max. Input Current

Max. Surge Current

Effective Area

Peak Sensitivity Wavelength

Max. Output Signal Current

Operating Ambient Temperature

Storage Temperature

Weight

+14 to +16

+17

400

4.0

24

420

100

100

+5 to +40

-20 to +50

850

Unit

V

V

mA

A

mm

nm

mA

µA

°C

°C

g

Normally ON type

Normally OFF type

300 nm to 650 nm

Features

Spectral Response

Parameter

H7680 / H7680-01

Photocathode Material

Window Material

Dynode Structure

Number of Dynodes

Cathode

Character-

istics

Anode

Character-

Response

Luminous Sensitivity

Blue Sensitivity Index (CS 5-58)

Luminous Sensitivity

Rise Time

Transit Time

TTS

Typ.

Max.

Bialkali

Borosilicate glass

Linear focused type

10

95

88

11.0

475

4.4

10

200

5

1.7

16

500

Unit

—

—

—

—

µA/lm

mA/W

—

A/lm

A/W

—

ns

ns

ps

*1: Control voltage = +4.5 V

*2: Measured at the peak sensitivity wavelength

*3: Measured when photomultiplier tube operation is ON. After 30 minute storage in darkness

nA