PHOTOMULTlPLlER TUBE R7449 28mm(1–1/8 Inch) Diameter, 11–stage, Bialkali Photocathode, Head–On Type, Low Dark Current, High Stability GENERAL Description/Value 185 to 650 420 Bialkali 25 UV glass Box and Line 11 14–pin glass base E678–14C (supplied) Parameter Spectral Response Wavelength of Maximum Response MateriaI Photocathode Minimum Effective Area Window MateriaI Structure Dynode Number of Stages Base Suitable Socket Unit nm nm mm dia. MAXIMUM RATINGS (Absolute Maximum Values) Parameter Between Anode and Cathode Supply Voltage Between Anode and Last Dynode Average Anode Current Ambient Temperature Value 1500 250 0.1 -80 to +50 Unit Vdc Vdc mA °C CHARACTERISTlCS (at 25 °C ) Cathode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Blue (CS–5–58 filter) Luminous (2856K) Radiant at 420nm Anode Sensitivity Gain Anode Dark Current (after 30min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time Transit Time Spread (FWHM) Min. 60 50 Typ. 95 88 11 200 1.8 × 105 2.1 × 106 2 4 30 3 Max. Unit µ A/lm mA/W µ A/lm-b A/lm A/W 10 nA ns ns ns NOTE: Anode characteristics are measured with the voItage distribution ratio shown below. VOLTAGE DlSTRlBUTlON RATlO AND SUPPLY VOLTAGE K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Electrodes Ratio 1 1 1 1 1 1 1 1 1 1 1 1 SuppIy 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. © 2000 Hamamatsu Photonics K.K. PHOTOMULTlPLlER TUBE R7449 Figure 1: Typical Spectral Response TPMHB0217EA 108 TPMHB0311EB 107 10 QUANTUM EFFICIENCY 106 GAIN CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 100 Figure 2: Typical Gain CATHODE RADIANT SENSITIVITY 1 105 104 0.1 103 0.01 200 400 600 102 500 800 700 1000 1500 2000 SUPPLY VOLTAGE (V) WAVELENGTH (nm) Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) 28.5±0.5 25MIN. FACEPLATE Socket (E678–14A) PHOTOCATHODE 44 DY7 4 11 DY4 DY5 3 12 DY2 13 K 14 DY1 DY3 2 1 IC 2- 3.5 26 13MAX. 14 PIN BASE 9 2.5 SHORT PIN BOTTOM VIEW (BASING DIAGRAM) 30 DY9 5 DY10 DY8 8 9 10 DY6 11.6 112 ± 2 6 7 7 P DY11 19.1 35 25 TPMHA0464EA TACCA0004EA HOMEPAGE URL http://www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Electron 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 Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: 44(20)8-367-3560, Fax: 44(20)8-367-6384 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 SOLNA, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 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 TPMH1271E01 JAN. 2000 IP