PHOTOMULTIPLIER TUBE R821 For Astro-physics and Other Ultraviolet Radiation Detection Solar Blind Response (160nm to 320nm), Cs-Te Photocathode 19mm (3/4 Inch) Diameter, 10-stage, Head-On GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Effective Area Window Material Structure Dynode Number of Stages Base Suitable Socket Description/Value 160 to 320 240 Cs-Te 15 Fused silica Linear focused 10 12-pin glass base E678-12L (supplied) Unit nm nm — mm dia. — — — — — Value 1250 250 0.01 -80 to +50 Unit Vdc Vdc mA °C MAXIMUM RATINGS (Absolute Maximum Values) Supply Voltage Parameter Between Anode and Cathode Between Anode and Last Dynode Average Anode Current Ambient Temperature CHARACTERISTICS (at 25°C) Parameter Min. Typ. Cathode Sensitivity 28 Radiant at 254nm — Anode Sensitivity 1.0 × 104 Radiant at 254nm 4 × 103 Gain — 3.6 × 105 Anode Dark Current (after 30min. storage in darkness) 0.3 — 2.5 — Anode Pulse Rise Time Time Response 27 — Electron Transit Time NOTE: Anode characteristics are measured with the voltage distribution ratio shown below. Max. — — — 0.5 — — Unit mA/W A/W — nA ns ns VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Ratio 1.5 1 1 1 1 1 1 1 1 1 1 Supply 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. © 1998 Hamamatsu Photonics K.K. PHOTOMULTIPLIER TUBE R821 Figure 1: Typical Spectral Response Figure 2: Typical Gain Characteristics TPMHB0511EA TPMHB0512EA 108 CATHODE RADIANT SENSITIVITY 107 10 106 105 GAIN CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 100 QUANTUM EFFICIENCY 1 104 103 0.1 102 0.01 100 150 200 250 300 350 101 500 400 WAVELENGTH (nm) 600 700 800 1000 1500 SUPPLY VOLTAGE (V) Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) Socket (Supplied) (E678-12L) 19 ± 1 FACEPLATE 15MIN. 35 28.6 2- 3.2 13 2-R4 9 DY4 DY7 3 10 DY2 11 2 1 DY3 12 K 18 2 DY1 12 PIN BASE 13MAX. (8) SHORT PIN 7 DY5 2 DY9 4 360 13 9 (23.6) DY8 7 DY6 8 10.5 9.5 3.3 3.7 88 ± 2 DY10 6 P 5 6.7 PHOTOCATHODE 13 TPMHA0432EB 18 TACCA0047EA 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 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.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 TPMH1210E01 JUL. 1998