PHOTOMULTIPLIER TUBE R2078 Extremely Improved Solar Blind Photocathode for Aerospace and General Photometric Applications, 25 mm (1 Inch) Diameter, Ruggedized Low Profile Tube, Cs-Te Photocathode, 10-Stage, Head-on FEATURES ●High Quantum Efficiency ............................ 14 % at 254 nm Typ. ●Ruggedized, Low Profile Structure ............ 300 m/s2 vibration 43 mm in bulb length SPECIFICATIONS GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Effective Area Window Material Structure Dynode Number of Stages Base (temporary) Operating Ambient Temperature Storage Temperature Suitable Socket Description / Value 160 to 320 240 Cs-Te 21 Fused silica Circular cage 10 12-pin base JEDEC No. B12-13 -40 to +80 -40 to +80 E678-12A (supplied) Unit nm nm — mm — — — — °C °C — Value 2000 300 0.015 Unit V V mA MAXIMUM RATINGS (Absolute Maximum Values) Supply Voltage Parameter Between Anode and Cathode Between Anode and Last Dynode Average Anode Current CHARACTERISTICS (at 25°C) Cathode Sensitivity Parameter Radiant at 254 nm Radiant at 365 nm Radiant at 550 nm Quantum Efficiency at 254 nm Radiant at 254 nm Anode Sensitivity Gain Anode Dark Current (after 30 min storage in darkness) PHD at 1 × 106 Gain A Dark Counts Plateau at V0 B Anode Pulse Rise Time C Min. 20 — — 9.8 2.0 × 103 1.0 × 105 — — — — Typ. 29 3.4 × 10-3 3.8 × 10-5 14.2 1.5 × 104 5.0 × 105 15 10 20 1.5 Max. — 1.2 × 10-2 — — — — 100 20 — — Unit mA/W mA/W mA/W % A/W — pA s-1 s-1 ns NOTE: AThe discrimination level is set at one forth the average electron pulse height to measure the background. BPlateau voltage (V0) at the test up in HPK. CThe rise time is the time of the output pulse to rise from 10 % to 90 % of peak amplitude when the entire photocathode is illuminated by a delta function light pulse. VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Ratio 2 1 1 1 1 1 1 1 1 1 1 Supply Voltage: 1500 V, 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 HAMAMATSU 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. ©2007 Hamamatsu Photonics K.K. PHOTOMULTIPLIER TUBE R2078 Figure 1: Typical Spectral Response TPMHB0559EB 108 101 CATHODE RADIANT SENSITIVITY TPMHB0560EA 107 100 106 10-1 GAIN PHOTOCATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 102 Figure 2: Typical Gain Characteristics 10-2 105 10-3 104 QUANTUM EFFICIENCY 10-4 103 10-5 10-6 100 200 300 400 500 102 500 600 WAVELENGTH (nm) 700 1000 1500 2000 3000 SUPPLY VOLTAGE (V) Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) Socket (E678-12A) 25.4 ± 0.8 Temporary Base Removed 21 MIN. 13 MAX. PHOTOCATHODE SEMIFLEXIBLE LEADS 43.0 ± 1.5 FACEPLATE 47 P 8 DY9 6 DY7 5 DY5 4 40 DY10 10 DY8 11 DY3 3 12 DY6 DY1 2 13 DY4 14 DY2 17 K 17 Bottom View P 6 5 DY10 7 DY8 8 9 DY6 DY7 4 DY3 34 11 2 1 DY1 12 5 10 DY4 DY5 3 37.3 ± 0.5 2- 3.2 DY2 K 15 DY9 8 50 MIN. 12 PIN BASE JEDEC No. B12-43 TPMHA0438EA TACCA0009EB WEB SITE www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Electron Tube Division 314-5, Shimokanzo, Iwata City, Shizuoka Pref., 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 E-mail: [email protected] Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: [email protected] France: Hamamatsu Photonics France S.A.R.L.: 19, 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 E-mail: [email protected] United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: [email protected] 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 E-mail: [email protected] 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 E-mail: [email protected] TPMH1226E02 MAR. 2007. IP