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