HAMAMATSU R1878 Datasheet

PHOTOMULTIPLIER TUBE

R1878

For Photon Counting Applications

Excellent Transit Time Spread, Low After Pulse

19mm (3/4 Inch) Diameter, Multialkali Photocathode, 10-Stage, Head-on Type

GENERAL

Parameter Description/Value Unit

Spectral Response
Wavelength of Maximum Response

Photocathode
Window Material
Dynode
Base

Suitable Socket

Material
Minimum Effective Area

Structure
Number of Stages

300 to 850

420

Multialkali

4

Borosilicate glass

Linear focused

10

12-pin glass base

E678-12D (supplied)

nm
nm

—

mm dia.

—
—
—
—
—

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter Value Unit

Supply Voltage
Average Anode Current

Ambient Temperature

Between Anode and Cathode
Between Anode and Last Dynode

CHARACTERISTICS (at 25°C)

Parameter Min. Unit

Cathode Sensitivity

Anode Sensitivity
Gain

Anode Dark Counts
Time Response

Luminous (2856K)
Radiant at 420nm
Red/White Ratio (with R-68 filter)
Luminous (2856K)
Radiant at 420nm

Anode Pulse Rise Time
Electron Transit Time

80
—
—
30
—
—
—
—
—

VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE

Electrodes
Ratio

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

K Dy12Dy21Dy31Dy41Dy51Dy61Dy71Dy81Dy9

111

1500

250

0.1

-80 to +50

Typ. Max.

120

51

0.2

150

6.1 × 10

1.2 × 10
100

1.7
24

Dy10 P

Vdc
Vdc

mA

°C

—
—
—

4
6

—
—
—

250

—
—

µA/lm
mA/W

—
A/lm
A/W

—

cps

ns
ns

Subject to local technical requirements and regulat ions, availability of products included in this promotional material may var y. P lease consult with our sales office.
Information furnished by HAMA M ATSU is believed to be reliable. However, n o responsibility 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.

1999 Hamamatsu Photonics K.K.

©

PHOTOMULTIPLIER TUBE R1878

Figure 1: Typical Spectral Response

TPMHB0547EB

100

10

QUANTUM
EFFICIENCY

WAVELENGTH (nm)

QUANTUM EFFICIENCY (%)

CATHODE RADIANT SENSITIVITY (mA/W)

1

0.1

0.01
200 600400 800 1000

CATHODE
RADIANT
SENSITIVITY

Figure 2: Typical Gain Characteristics

TPMHB0549EA

8

10

7

10

6

10

GAIN

5

10

4

10

3

10

500 600 700 800 1000 1200 1400

SUPPLY VOLTAGE (V)

Figure 3: Dimensional Outline and Basing Diagram (Unit: mm)

FACEPLATE

MASKED
PHOTOCATHODE

HA COATING

19 ± 1

12PIN BASE

4MIN.

13MAX.

80 ± 2

DY9

DY7

DY5

DY10

P

5

4

3

2

1

DY3

SHORT PIN

DY8

6

7

DY6

8

DY4

9

10

DY2

11

K

12

DY1

TPMHA0027EA

10.5

(8)

360°

13

9.5

3.7

3.3

Socket

(E678-12L)

35

28.6
13

18

2

7

13
18

2- 3.2

6.7

2

2-R4

9

(23.6)

TACCA0047EA

HAMAMATSU PHOTONICS K.K., Electron Tube Center

HOMEPAGE URL http://www.hamamatsu.com

314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: [phone], Fax: [phone]

U.S.A.:

Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]

Germany:

Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]

France:

Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]

United Kingdom:
North Europe:
Italy:

Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: [phone], Fax: [phone]

Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: [phone], Fax: [phone]

Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]

TPMH1222E02
DEC. 1999