PHOTOMULTIPLIER TUBE R2496 For Positron CT Scanner Using BaF2 Scintillator 10mm (3/8 Inch) Diameter, 8-Stage, Head-On, Bialkali Photocathode FEATURES Coincidence Resolving Time with BaF2-BaF2/22Na ........................................................................................................................................................... 0.45ns Fast Time Response Transit Time Spread (FWHM) .............................................................................................................................................. 0.6ns Quantum Efficiency at 225nm ................................................................................................................................................... 18% GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Useful Area Window Material Structure Dynode Number of Stages Direct Interelectrode Anode to Last Dynode Capacitances Anode to All Other Electrodes Base Weight Suitable Socket Description/Value 160 to 650 420 Bialkali 8 Fused silica Linear focused 8 0.7 2.0 11-pin glass base Approx. 5 E678-11N (supplied) Unit nm nm — mm dia. — — — pF pF — g — Value 1500 0.03 -80 to +50 Unit Vdc mA °C MAXIMUM RATINGS (Absolute Maximum Values) Supply Voltage Average Anode Current Ambient Temperature Parameter Between Anode and Cathode CHARACTERISTICS (at 25°C) Cathode Sensitivity Anode Sensitivity Parameter Luminous (2856K) Radiant at 420nm Blue Luminous (2856K) Radiant at 420nm Gain Anode Dark Current (after 30 min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time Min. 60 — — 30 — — — — — Typ. 95 76 9.5 100 8.0 × 104 1.1 × 106 2 0.7 9.0 Max. — — — — — — 50 — — Unit µA/lm mA/W µA/lm-b A/lm A/W — nA ns ns VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 P Distribution Ratio 3 1.5 1.5 1 1 1 1 1 1 Supply Voltage: 1250Vdc, K: Cathode, Dy: Dynode, P: Anode 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. © 1998 Hamamatsu Photonics K.K. PHOTOMULTIPLIER TUBE R2496 Figure 1: Typical Spectral Response Figure 2: Typical Gain Characteristics TPMHB0566EA 107 TPMHB0567EA CATHODE RADIANT SENSITIVITY 106 10 QUANTUM EFFICIENCY GAIN CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 100 1 104 0.1 0.01 105 200 400 600 103 500 800 700 1000 1500 2000 SUPPLY VOLTAGE (V) WAVELENGTH (nm) Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) Socket (E678-11N) 10.5 ± 0.5 8MIN. 4.3 DY5 P 6 DY8 7 8 4 9 DY4 DY3 3 2 11 PIN BASE 10MAX. DY1 DY6 1 IC 11 K 10 DY2 10.5 9.5 SHORT PIN 11 PHOTOCATHODE 45.0 ± 1.5 DY7 5 3 FACEPLATE 3 TPMHA0442EA 9.5 TACCA0043EA 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, 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)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.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 TPMH1229E01 SEPT. 1998