HAMAMATSU R3991 Datasheet

PHOTOMULTIPLIER TUBE

R3991

Ruggedized, High Temperature (175°C) PMT for Oil Well Logging (MWD)

19 mm (3/4 Inch) Diameter, 10-stage, Head-On Type

GENERAL

Parameter Description/Value Unit

Spectral Response
Wavelength of Maximum Response

Photocathode
Window Material
Dynode

Material
Minimum Effective Area

Structure
Number of Stages

300 to 650

375

High temp. bialkali

15

Borosilicate glass

Circular-cage

10

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 Current (after 30min. storage in darkness)

Time Response

1000nA at 175°C

*

NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.

Luminous (2856K)
Blue (CS-5-58 filter)
Luminous (2856K)

Anode Pulse Rise Time
Electron Transit Time

20

—
—
—
—

VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE

Electrodes
Ratio

Supply Voltage: 1500Vdc, K: Cathode, Dy: Dynode, P: Anode

K Dy13Dy21Dy31Dy41Dy51Dy61Dy7

11

Dy8 Dy9 Dy10 P

111

1800

250

0.02

-80 to +175

Typ. Max.

40
4
5

6

15

3.75 × 10

0.1

*

1.0
13

5

—
—
—
—
10
—
—

Vdc
Vdc

mA

°C

µA/lm

µA/lm-b

A/lm

—

nA

ns
ns

ENVIRONMENTAL TESTING

Shock ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 1000g's, 0.5ms, 3 impact shocks per direction (6 directions)
Vibration ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ ⋅ 30g's, 50 to 2000Hz, 1 oct per minute, 3 sweeps per axis (3 axes)

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 R3991

Figure 1: Typical Spectral Response

TPMHB0061EA

2

10

1

10

QUANTUM
EFFICIENCY

0

10

QUANTUM EFFICIENCY (%)

CATHODE RADIANT SENSITIVITY (mA/W)

1

-

10

WAVELENGTH (nm)

at 25°C

CATHODE
RADIANT
SENSITIVITY

600500

Figure 2: Typical Gain Characteristics

TPMHB0601EA

7

10

6

10

5

10

4

10

GAIN

3

10

2

10

1

10

700400300200

500 600 700 800 1000

SUPPLY VOLTAGE (V)

at 25°C

1500

1800

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

A Temporary Base Removed

P

4
3

5

2

DY1

6

1

14

K

DY9

DY7

DY5

DY3

B Bottom View

DY10

P

6

7

1

12

DY7

DY5

DY9

DY3

5

4
3

2

DY1

FACEPLATE

PHOTOCATHODE
SEMIFLEXIBLE

LEADS 0.7MAX.

A

12 PIN BASE
JEDEC
No. B12-43

B

18.6±0.7
15MIN.

37.3±0.5

28.0±1.5

13MAX.

45MIN.

13

12

DY2

8

11

K

DY10

9

10

11

DY4

DY8

DY6

9

10

DY2

TPMHA0361EA

DY8

DY6

DY4

Socket (Option)

(E678-12A)

2- 3.2

47

40
17

34

5

15

8

TACCA0009EB

HAMAMATSU PHOTONICS K.K., Electron Tube Center
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]

TPMH1250E01
FEB. 1999