Datasheet

PHOTOMULTlPLlER TUBE
R2228
For Visible to Near IR Low Light Detection
Extended Red Multialkali Photocathode
28mm(1–1/8 Inch) Diameter, 11–stage, Head–On Type
GENERAL
Parameter
Spectral Response
Wavelength of Maximum Response
MateriaI
Photocathode
Minimum Effective Area
Window Material
Structure
Dynode
Number of Stages
Direct Interelectrode
Anode to Last Dynode
Capacitances
Anode to All Other Electrodes
Base
SuitabIe Socket
Description/Value
300 to 900
600
Extended red multialkali
25
Borosilicate glass
Box–and –grid
11
3.0
3.5
14–pin glass base
E678–14C(supplied)
Unit
nm
nm
mm dia.
pF
pF
MAXIMUM RATINGS (Absolute Maximum Values)
Supply Voltage
Parameter
Between Anode and Cathode
Between Anode and Last Dynode
Avarage Anode Current
Ambient Temperature
CHARACTERISTlCS (at 25
Unit
Vdc
Vdc
mA
Value
1500
250
0.1
–80 to +50
)
Parameter
Luminous (2856K)
Radiant at 600nm
Red/White Ratio (R–68)
Luminous (2856K)
Radiant at 600nm
Min.
100
Typ.
200
Cathode
40
Sensitivity
0.3
20
150
Anode
Sensitivity
3.0 104
7. 5 1 0 5
Gain
Anode Dark Current (after 30min. storage in darkness)
8
Anode Pulse Rise Time
15
Time Response
60
Electron Transit Time
NOTE: Anode characteristics are measured with the voItage distribution ratio shown below.
Max.
Unit
A/lm
mA/W
A/lm
A/W
30
nA
ns
ns
VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE
K
G
Electrodes
Ratio
1
SuppIy Voltage : 1000Vdc,
Dy1
Dy2
Dy3
Dy4
Dy5
Dy6
Dy7
Dy8
Dy9
Dy10 Dy11
1
1
1
1
1
1
1
1
1
1
1
K : Cathode, Dy : Dynode, P : Anode, G:Grid
P
Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office.
lnformation furnished by HAMAMATS U is believed to be reliabIe. However, no responsibility is assumed for possibIe inaccuracies or commission. Specifications are
subjected to change without notice. No patent right are granted to any of the circuits described herein. © 1992 Hamamatsu Photonics K.K.
PHOTOMULTlPLlER TUBE R2228
Figure 1: Typical Spectral Response
100
TPMHB0163EA
CATHODE RADIANT SENSITIVITY (mA/W)
QUANTUM EFFICIENCY (%)
CATHODE
RADIANT
SENSITIVITY
10
QUANTUM
EFFICIENCY
0
0.1
0.01
200
300
400
500
600
700
800
900
1000
WAVELENGTH (nm)
Figure 2: Dimensional Outline and Basing Diagram (Unit : mm)
Socket
28.5 0.5
FACEPLATE
(E678 – 14C)
25MIN.
44
11 DY4
DY7 4
12 DY2
112 2
DY5 3
DY3
30
DY9 5
PHOTOCATHODE
DY10
DY8
8
9
10 DY6
11.6
6
7
19.1
P
DY11
35
13
2
1
IC
14
K
2- 3.5
DY1
26
TPMHA0181EA
9
BOTTOM VIEW
(BASING DIAGRAM)
7
2.5
SHORT PIN
25
14 PIN BASE
13MAX.
TACCA0004EA
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, 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.: Via Della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)2-935 81 733, Fax: (39)2-935 81 741
TPMH1062E01
DEC. 1992
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