Datasheet

PHOTOMULTIPLIER TUBE
R821
For Astro-physics and Other Ultraviolet Radiation Detection
Solar Blind Response (160nm to 320nm), Cs-Te Photocathode
19mm (3/4 Inch) Diameter, 10-stage, Head-On
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
Material
Photocathode
Minimum Effective Area
Window Material
Structure
Dynode
Number of Stages
Base
Suitable Socket
Description/Value
160 to 320
240
Cs-Te
15
Fused silica
Linear focused
10
12-pin glass base
E678-12L (supplied)
Unit
nm
nm
—
mm dia.
—
—
—
—
—
Value
1250
250
0.01
-80 to +50
Unit
Vdc
Vdc
mA
°C
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
Average Anode Current
Ambient Temperature
CHARACTERISTICS (at 25°C)
Parameter
Min.
Typ.
Cathode Sensitivity
28
Radiant at 254nm
—
Anode Sensitivity
1.0 × 104
Radiant at 254nm
4 × 103
Gain
—
3.6 × 105
Anode Dark Current (after 30min. storage in darkness)
0.3
—
2.5
—
Anode Pulse Rise Time
Time Response
27
—
Electron Transit Time
NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.
Max.
—
—
—
0.5
—
—
Unit
mA/W
A/W
—
nA
ns
ns
VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE
Electrodes
K
Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10
Ratio
1.5
1
1
1
1
1
1
1
1
1
1
Supply Voltage: 1000Vdc, K: Cathode, Dy: Dynode, P: Anode
P
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 HAMAMATS U is believed to be reliable. However, no 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. © 1998 Hamamatsu Photonics K.K.
PHOTOMULTIPLIER TUBE R821
Figure 1: Typical Spectral Response
Figure 2: Typical Gain Characteristics
TPMHB0511EA
TPMHB0512EA
108
CATHODE
RADIANT
SENSITIVITY
107
10
106
105
GAIN
CATHODE RADIANT SENSITIVITY (mA/W)
QUANTUM EFFICIENCY (%)
100
QUANTUM
EFFICIENCY
1
104
103
0.1
102
0.01
100
150
200
250
300
350
101
500
400
WAVELENGTH (nm)
600
700
800
1000
1500
SUPPLY VOLTAGE (V)
Figure 3: Dimensional Outline and Basing Diagram (Unit: mm)
Socket (Supplied)
(E678-12L)
19 ± 1
FACEPLATE
15MIN.
35
28.6
2- 3.2
13
2-R4
9 DY4
DY7 3
10 DY2
11
2
1
DY3
12
K
18
2
DY1
12 PIN BASE
13MAX.
(8)
SHORT PIN
7
DY5
2
DY9 4
360
13
9
(23.6)
DY8
7
DY6
8
10.5
9.5
3.3 3.7
88 ± 2
DY10
6
P
5
6.7
PHOTOCATHODE
13
TPMHA0432EB
18
TACCA0047EA
HAMAMATSU PHOTONICS K.K., Electoron Tube Center
314-5, Shimokanzo, Toyooka-village, Iwata-gun, Shizuoka-ken, 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
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, 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
United Kingdom: Hamamatsu Photonics UK Limted: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: (44)181-367-3560, Fax: (44)181-367-6384
North Europe: Hamamatsu Photonics Norden AB: Färögatan 7, S-164-40 Kista Sweden, Telephone: (46)8-703-29-50, Fax: (46)8-750-58-95
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
TPMH1210E01
JUL. 1998
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