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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 Avarage Anode Current Ambient Temperature Parameter Between Anode and Cathode Between Anode and Last Dynode Value 1500 250 0.1 -80 to +50 Unit Vdc Vdc mA
CHARACTERISTlCS (at 25
)
Min. 100 Max. Unit A/lm mA/W A/lm A/W 30 nA ns ns
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.
Parameter Luminous (2856K) Radiant at 600nm Red/White Ratio (R-68) Luminous (2856K) Radiant at 600nm
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. (c) 1992 Hamamatsu Photonics K.K.
PHOTOMULTlPLlER TUBE R2228
Figure 1: Typical Spectral Response
100
TPMHB0163EA
CATHODE RADIANT SENSITIVITY CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%)
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 25MIN.
(E678 - 14C)
44
P DY11 6
PHOTOCATHODE
7
DY9 5 DY7 4 DY5 3
112 2
DY10 DY8 8 9 10 DY6 11 DY4 12 DY2
35
11.6
19.1 9 7
DY3
2 1 IC 14
13 DY1
K
2- 3.5
26
SHORT PIN
BOTTOM VIEW (BASING DIAGRAM)
TPMHA0181EA
25
2.5
TACCA0004EA
14 PIN BASE
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: Farogatan 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
13MAX.
30
TPMH1062E01 DEC. 1992

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