R2228 HAMAMATSU | Alldatasheet
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For Visible to Near IR Low Light Detection Extended Red Multialkali Photocathode 28mm(1–1/8 Inch) Diameter, 11–stage, Head–On Type GENERAL MAXIMUM RATINGS (Absolute Maximum Values) Parameter Parameter Value Description/Value Unit Spectral Response 300 to 900 nm Wavelength of Maximum Response 600 nm Photocathode MateriaI Extended red multialkali Structure Number of Stages Minimum Effective Area 25 mm dia. pF pF Window Material Borosilicate glass Dynode Direct Interelectrode Capacitances Anode to Last Dynode Anode to All Other Electrodes Base SuitabIe Socket Supply Voltage Between Anode and Cathode Between Anode and Last Dynode 1500 Ambient Temperature Avarage Anode Current –80 to +50 0.1 250 Unit Vdc Vdc mA Box–and –grid 3.5 14–pin glass base 3.0 E678–14C(supplied) CHARACTERISTlCS (at 25 ) Parameter Max. Typ.Min. Cathode Sensitivity Gain Anode Dark Current (after 30min. storage in darkness) Radiant at 600nm Red/White Ratio (R–68) Radiant at 600nm 3.0 10 4 mA/W A/W A/lm A/lm Anode Pulse Rise Time 15 ns nA Electron Transit Time 200 0.3 150 100 Time Response Electrodes K Dy1 G Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 P Ratio 1 1 1 1 1 1 1 1 1 1 1 1 SuppIy Voltage : 1000Vdc, K : Cathode, Dy : Dynode, P : Anode, G:Grid Anode Sensitivity 83 0 Unit VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE ns 7.5 10 5 Luminous (2856K) Luminous (2856K) PHOTOMULTlPLlER TUBE R2228 lnformation furnished by HAMAMATSU 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. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. Anode characteristics are measured with the voItage distribution ratio shown below.NOTE:
PHOTOMULTlPLlER TUBE R2228 Figure 1: Typical Spectral Response Figure 2: Dimensional Outline and Basing Diagram (Unit : mm) BOTTOM VIEW (BASING DIAGRAM) Socket (E678 – 14C) TPMH1062E01 DEC. 1992 TPMHB0163EA CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) WAVELENGTH (nm) 200 300 400 500 600 700 800 900 1000 0.01 0.1 100 QUANTUM EFFICIENCY CATHODE RADIANT SENSITIVITY TPMHA0181EA FACEPLATE 28.5 0.5 25MIN. PHOTOCATHODE SHORT PIN 13MAX.
14 PIN BASE
K DY1 TACCA0004EA 2.5 2- 3.5 19.1 11.6 112 2 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 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