HAMAMATSU R3810, R3811 Datasheet

Super Compact, 13mm (1/2 Inch) Diameter, 9-stage, Side-on Type

R3810: Sb-Cs (185 to 650nm), R3811: Multialkali (185 to 850nm)

FEATURES

Super Compact: 13mm (1/2 inch) diameter
17mm seated length
High Sensitivity
Low Dark Current

SUPER COMPACT
PHOTOMULTIPLIER TUBES

R3810, R3811

APPLICATIONS

General Industrial Use
Exposuremeter for Microscope
Environmental Measurements

• Dust Counter

• Turbidimeter, etc.
Emission Spectroscopy

• Fluorescence Spectrophotometer, etc.

Recently, because of technology progress and requirements for cost reduction and high quality control, measurement

systems have been designed for smaller size and on-line operation.

Hamamatsu offers super-compact 13mm (1/2 inch) diameter side-on photomultiplier tubes with the seated length as

short as 17mm.

In spite of such compactness, these tubes have a 9-stage dynode that offers high gain in the order of 106.
They are optimal for applications where small detectors are required such a spectroscopy, biotechnology, medicine

and general industries.

Actual Size

Subject to local technical requirements and regulat ions, availability of products included in this promotional material may va r y. Please consult with our sales office.
Information furnished by HAMA M ATSU is believed to be reliable. However, no respon sibility is assumed for possible inaccuracies or omissions. Specifications are

subject to change without notice. No patent rights are granted to any of the circuits described herein.

1998 Hamamatsu Photonics K.K.

©

SUPER COMPACT PHOTOMULTIPLIER TUBES R3810, R3811

SPECIFICATIONS

GENERAL

Parameter R3810 R3811 Unit

Spectral Response
Wavelength of Maximum Response

Photocathode
Window Material
Dynode
Direct Interelectrode

Capacitances
Base
Weight
Suitable Socket
Suitable Socket Assemblies

Material
Minimum Effective Area

Structure
Number of Stages
Anode to Last Dynode
Anode to All Other Electrodes

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter Value Unit

Supply Voltage
Average Anode Current

Ambient Temperature

Between Anode and Cathode
Between Anode and Last Dynode

185 to 650

340

Sb-Cs

3 × 4

UV glass

Circular-cage

11-pin glass base

E678-11H (supplied)

E850-12, E850-13 (option)

1250

-80 to +50

185 to 850

Multialkali

9

1.7

2.0

3

150

0.01

530

pF (Max.)
pF (Max.)

nm
nm

—

mm

—
—
—

—

g
—
—

Vdc
Vdc

mA

°C

CHARACTERISTICS (at 25°C)

Parameter

Luminous (2856K)

Cathode
Sensitivity

Anode
Sensitivity

Gain
Anode Dark Current *

Time
Response

* After 30min. storage in darkness

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

20
—
—
—
—
—
50
—
—
—
—
—
—
—

R3810

Typ.

40
42

1.5
13

0.29
—

300

3.2 × 10

1.1 × 10

7.5 × 10

0.5

1.4
15

750

Max.

—
—
—
—
—
—

5
4
6

—
—
—
—

5
—
—
—

VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE

Electrodes
Ratio

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

K Dy11Dy21Dy31Dy41Dy51Dy61Dy71Dy81Dy9

11

Min.

50
—
—
—
—
—
50
—
—
—
—
—
—
—

4.4 × 10

4.0 × 10

1.3 × 10

P

R3811

Typ.

150

34
31
10

6.1

0.15
200

1

1.4
15

750

Max.Min.

—
—
—
—
—
—

4
4
6

—
—
—
—
10
—
—
—

Unit

µA/lm
mA/W

%
—

A/lm
A/W

—

nA

ns
ns
ps