GENERAL

SPECIFICATIONS

Parameter

R3810

R3811

Unit

Spectral Response

Wavelength of Maximum Response

Photocathode

Window Material

Dynode

Direct Interelectrode

Capacitances

Base

Weight

Suitable Socket

Suitable Socket Assemblies

185 to 650

340

Sb-Cs

185 to 850

530

Multialkali

nm

nm

—

mm

—

—

—

pF (Max.)

pF (Max.)

—

g

—

—

3

× 4

UV glass

Circular-cage

9

1.7

2.0

11-pin glass base

3

E678-11H (supplied)

E850-12, E850-13 (option)

Material

Minimum Effective Area

Structure

Number of Stages

Anode to Last Dynode

Anode to All Other Electrodes

SUPER COMPACT PHOTOMULTIPLIER TUBES R3810, R3811

MAXIMUM RATINGS (Absolute Maximum Values)

* After 30min. storage in darkness

Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode

CHARACTERISTICS (at 25

°C)

VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE

Parameter

Min.

Unit

Parameter

Value

Unit

Supply Voltage

Average Anode Current

Ambient Temperature

1250

150

0.01

-80 to +50

Vdc

Vdc

mA

°C

Between Anode and Cathode

Between Anode and Last Dynode

Cathode

Sensitivity

Anode

Sensitivity

Gain

Anode Dark Current *

Time

Response

Electrodes

Ratio

K

Dy1

1

Dy2

1

Dy3

1

Dy4

1

Dy5

1

Dy6

1

Dy7

1

Dy8

1

Dy9

11

P

Luminous (2856K)

Radiant

Quantum

Efficiency

Red/White Ratio (R-68)

Luminous (2856K)

Radiant

Anode Pulse Rise Time

Electron Transit Time

Transit Time Spread

at 400nm

at 633nm

at 400nm

at 633nm

at 400nm

at 633nm

50

—

—

—

—

—

50

—

—

—

—

—

—

—

150

34

31

10

6.1

0.15

200

4.4

4.0

1.3

1

1.4

15

750

µA/lm

mA/W

%

—

A/lm

A/W

—

nA

ns

ns

ps

—

—

—

—

—

—

—

—

—

—

10

—

—

—

Typ.

R3811

Max.

Min.

20

—

—

—

—

—

50

—

—

—

—

—

—

—

40

42

1.5

13

0.29

—

300

3.2

1.1

7.5

0.5

1.4

15

750

—

—

—

—

—

—

—

—

—

—

5

—

—

—

Typ.

R3810

Max.