R943-02_15 [HAMAMATSU]

GaAs (Cs) Photocathode, Wide Spectral Response, 51 mm (2) Diameter Head-on Type for Photon Counting, Low Dark Counts, Excellent P.H.D.;


型号：	R943-02_15
厂家：	HAMAMATSU CORPORATION
描述：	GaAs (Cs) Photocathode, Wide Spectral Response, 51 mm (2) Diameter Head-on Type for Photon Counting, Low Dark Counts, Excellent P.H.D.
文件：	总4页 (文件大小：175K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PHOTOMULTIPLIER TUBE

R943-02

GaAs (Cs) Photocathode, Wide Spectral Response, 51 mm (2") Diameter

Head-on Type for Photon Counting, Low Dark Counts, Excellent P.H.D.

FEATURES

ꢀ Wide Spectral Response ............. 160 nm to 930 nm

ꢀ

High Quantum Efficiency in Near IR ... 14 % at 632.8 nm

ꢀ Fast Rise Time ................................. 3.0 ns at 1500 V

ꢀ Excellent Single Photoelectron

Pulse Height Distribution

........................... Peak to Valley Ratio 2.3 (at -20 °C)

ꢀ Low Dark Counts ..................... 20 s^-1Typ. (at -20 °C)

APPLICATIONS

ꢀ Raman Spectroscopy

ꢀ Fluorescent Spectroscopy

ꢀ Astrophysical Measurement

ꢀ Laser Detection

Hamamatsu R943-02 is a 51 mm (2") diameter head-on type photomultiplier tube having GaAs (Cs) photocathode and synthetic

silica window. The combination of the GaAs photocathode and the synthetic silica window allows high sensitivity over a wide spectral

range from UV to IR (160 nm to 930 nm).

The R943-02 is selected for photon counting and features low dark counts and excellent pulse height distribution (PHD) of single

photoelectrons.

Figure 1: Typical Spectral Response

GENERAL

TPMHB0281EA

Parameter

Description / Value

160 to 930

Unit

10²

10¹

10⁰

Spectral Response

Wavelength of Maximum Response

Photocathode

300 to 800

MateriaI

GaAs(Cs)

10 × 10

Opaque

—

QUANTUM

EFFICIENCY

Minimum Effective Area

Mode

Window Material

Synthetic silica glass

—

CATHODE

RADIANT

SENSITIVITY

Dynode

Secondary Emitting Surface

Structure

Cu-BeO

Linear focused

—

Number of Stages

Direct Interelectrode Capacitances

Anode to Last Dynode

Anode to All Other Electrodes

Base

Approx. 2.7

Approx. 5.0

—

-1

-2

21-pin glass base

E678–21C (supplied)

SuitabIe Socket

Weight

Operating Ambient Temperature

Storage Temperature

-30 to +50

°C

200

400

600

800

1000

-80 to +50

WAVELENGTH (nm)

Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.

Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are

PHOTOMULTIPLIER TUBE R943-02

MAXIMUM RATINGS (Absolute Maximum Values)

Parameter

Supply Voltage

Value

Unit

Between Anode and Cathode

Between Anode and Last Dynode

Average Anode Current ^A

Average Pulse Count Rate ^B

Average Cathode Current ^C

2200

250

6 × 10⁶

µA

s^-1

CHARACTERISTlCS (at 25 °C)

Parameter

Min.

Typ.

Max.

Unit

Cathode Sensitivity ^D

Quantum Efficiency

at 253.7 nm (Hg-Line)

at 632.8 nm (He-Ne Laser)

Luminous ^E

—

300

—

600

µA/lm

mA/W

Radiant at 253.7 nm (Hg-Line)

at 632.8 nm (He-Ne Laser)

at 700 nm

—

at 852.1 nm (Cs-Line)

Red/White Ratio ^F

—

0.58

Anode Sensitivity ^G

Luminous ^E

150

—

300

1.5 × 10⁴

3.5 × 10⁴

3.6 × 10⁴

3.3 × 10⁴

5 × 10⁵

—

A/lm

A/W

—

Radiant at 253.7 nm (Hg-Line)

at 632.8 nm (He-Ne Laser)

at 700 nm

at 852.1 nm (Cs-Line)

Gain ^G

Equivalent Anode Dark Current ^H

Anode Dark Counts ^J

Single Photoelectron PHD (Peak to Valley Ratio)

Time Response ^G

s^-1

2.3

—

Anode Pulse Rise Time ^K

Electron Transit Time ^L

—

3.0

—

NOTES

AAveraged over any interval of 30 seconds maximum.

BMeasured at single photoelectron level. The discriminator level is set at val-

ley point.

CIn practical operation, the cathode current should be lower than 0.1 nA to

prevent shortening the life of the photocathode.

LThe electron transit time is the interval between the arrival of a delta func-

tion light pulse at the entrance window of the tube and the time when the

output pulse reaches the peak amplitude. In measurement the entire pho-

tocathode is illuminated.

DSupply voltage is 150 volts between the cathode and all other electrodes.

EThe light source is a tungsten filament lamp operated at a distribution tem-

perature of 2856 K.

FThe quotient of the cathode sensitivity measured with the light source is

the same as Note D passing through a red filter (Toshiba R-68) divided by

the cathode luminous sensitivity without the red filter.

GMeasured with supply voltage and voltage distribution ratio in Table 1.

HMeasured with supply voltage to provide the anode luminous sensitivity of

200 (A/lm) and the voltage distribution ratio in Table 1 after 30 minute stor-

age in the darkness.

JMeasured with supply voltage that gives 2 × 10⁶gain and with the voltage

distribution ratio shown in Table 1 after one hour storage in the cooler set

at -20 °C.

Table 1: Voltage Distribution Ratio

Electrode

Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10

1.5 1

Distribution Ratio

SuppIy Voltage : 1500 V, K : Cathode, Dy : Dynode, P : Anode

Replacement Information

The R943-02 is similar to the Burle C31034 series photomultiplier tube. The base

and voltage divider are different.

Warning–Personal Safety Hazards

Electrical Shock — Operating voltages

applied to this device present a shock hazard.

The discriminator is set at 1/3 of a single photoelectron level.

KThe rise time is the time it takes the output pulse to rise from 10 % to 90 %

of the peak amplitude when the entire photocathode is illuminated by a

delta function light pulse.

Figure 2: Typical Single Photoelectron

Pulse Height Distribution

Figure 3: Typical Gain

TPMHB0282EA

TPMHB0283EA

1.0

10⁸

WAVELENGTH OF INCIDENT LIGHT: 800 nm

LOWER LEVEL DISCRIMINATION : 87 CH

SIGNAL+DARK COUNTS

DARK COUNTS

10⁷

10⁶

10⁵

10⁴

10³

: 5329 s^-1

: 20 s^-1

0.8

TEMPERATURE

: -20 °C

0.6

0.4

0.2

SIGNAL+DARK

DARK

10²

500

512

1024

1000

1500

2000 2500

CATHODE TO ANODE VOLTAGE (V)

CHANNEL NUMBER (CH)

Figure 4: Typical Time Response

Figure 5: Typical Temperature Coefficient

of Quantum Efficiency

TPMHB0045EA

TPMHB0284EA

10²

1.5

TEMPERATURE RANGE: 10 to 40 (°C)

TRANSIT TIME

0.5

10¹

-0.5

-1

RISE TIME

-1.5

-2

10⁰

500

300

400

500

600

700

800

900 1000

1000

1500

2000

3000

SUPPLY VOLTAGE (V)

WAVELENGTH (nm)

Figure 6: Typical Dark Counts vs. Temperature

TPMHB0285EB

10⁵

COOLING

As Figure 6 shows, the dark counts of the R943-02 decreases

by cooling the tube. Therefore, when performing photon count-

ing, it is recommended that the tube be cooled down to about

-20 °C. The cooler C10372 which features temperature control

from -30 °C to 0 °C is available from HAMAMATSU.

10⁴

10³

10²

10¹

10⁰

-30

-20

-10

TEMPERATURE (°C)

PHOTOMULTIPLIER TUBE R943-02

Figure 7: Dimensional Outline and Basing Diagram (Unit: mm)

Orientation of Photocathode

with respect to base pin

b) PHOTOCATHODE

X Axis Cross Section

22.0

INPUT WINDOW

51 1

TOP VIEW

PIN 3

PIN 1

PHOTOCATHODE

(10 × 10)

90 ° 2.5 °

3.4

6.6

PIN 14

PHOTOCATHODE

CENTER

1.6

BOTTOM VIEW

DY9

DY7

DY5

Y Axis Cross Section

PHOTOCATHODE CENTER

INPUT WINDOW

DY3

DY1

22.0

DY10

1.6

DY8

DY6

PHOTOCATHODE

11.5

HA-COATING

(Conductive

paint connected

to the photocathode)

DY4

DY2

SHORT PIN

15° 1°

LIGHT SHIELD

(SILICONE)

Dy: Dynode

K : Photocathode

P : Anode

IC : Internal Connection

(should not be used)

PHOTOCATHODE

TUBE CENTER

TPMHA0286EA

TPMHA0022EB

TPMHA0023EB

c) SOCKET(Refer to NOTES A)

E678–21C (Supplied)

TACCA0066EC

REMARKS

CAUTIONS

ꢀHA coating

ꢀUse the HAMAMATSU SOCKET E678-21C.

ꢀWhen soldering the voltage dividers to the socket, the PMT should be inserted in the socket.

The R943-02 is coated with the conductive paint

connected to the cathode, which is covered with an

insulating material (HA coating). This method de-

creases noise. Care should be taken not to dam-

age the insulating cover wrapping around the bulb.

ꢀHelium will permeate through the silica bulb, leading to an increase in noise. Avoid operating or stor-

ing tubes in an environment where helium is present.

ꢀAs the R943-02 has a synthetic silica window, a very thin graded sealing structure is used in the

bulb wall. Although it is covered with an insulating cover, extreme care should be taken in handling.

www.hamamatsu.com

HAMAMATSU PHOTONICS K.K.

HAMAMATSU PHOTONICS K.K., Electron Tube Division

314-5, Shimokanzo, Iwata City, Shizuoka Pref., 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205

U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater. N.J. 08807-0910, U.S.A., Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: usa@hamamatsu.com

Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: info@hamamatsu.de

France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10 E-mail: infos@hamamatsu.fr

United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: info@hamamatsu.co.uk

North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 E-mail: info@hamamatsu.se

TPMH1115E07

DEC. 2010 IP

Italy: Hamamatsu Photonics Italia: S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 E-mail: info@hamamatsu.it

R943-02_15 [HAMAMATSU]

相关型号：

R9454

R9454_15

R95-101

R95-102

R95-103

R95-104

R95-105

R95-106A

R95-108

R95-110

R95-111

R95-113