PHOTOMULTIPLIER TUBE R1250 For High Energy Physics, Fast Time Response, High Pulse Linearity 127mm (5 Inch) Diameter, Bialkali Photocathode, 14-Stage, Head-on Type GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Minimum Useful Diameter Material Window Structure Dynode Number of Stages Base Suitable Socket Description/Value 300 to 650 420 Bialkali 120 Borosilicate glass Linear focused 14 20-pin base E678-20A (supplied) Unit nm nm — mm dia. — — — — — Value 3000 500 0.2 -30 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) Cathode Sensitivity Anode Sensitivity Parameter Luminous (2856K) Blue (with CS 5-58 filter) Quantum Efficiency at 390nm Luminous (2856K) Blue (with CS 5-58 filter) Gain Anode Dark Current (after 30min. storage in darkness) Anode Pulse Rise Time Time Response Electron Transit Time Transit Time Spread Pulse Height Resolution with 137Cs Long Term Gain Deviation Short Term 2% Deviation Pulse Linearity * 5% Deviation Min. 55 7.0 — 300 — — — — — — — — — — — Typ. 70 9.0 22 1000 130 1.4 × 107 50 2.5 54 1.2 8.3 1.0 1.0 160 250 Max. — — — — — — 300 — — — — — — — — Unit µA/lm µA/lm-b % A/lm A/lm-b — nA ns ns ns % % % % % * Measured with special voltage distribution ratios shown in the Table 2. Table 1: VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE K G1 G2 Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Dy12 Dy13 Dy14 P Electrode Ratio 2.5 7.5 0 1.2 1.8 1 1 1 1 1 1 1 1 1.5 1.5 3 2.5 Supply Voltage: 2000Vdc, K: Cathode, Dy: Dynode, P: Anode, G: Grid Table 2: SPECIAL VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE FOR PULSE LINEARITY MEASUREMENT Electrode K G1 G2 Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 Dy11 Dy12 Dy13 Dy14 P Ratio 2.5 7.5 0 1.2 1.8 1 1 1 1 1.2 1.5 2 2.8 4 5.7 8 5 Capacitors in µF 0.01 0.01 0.02 0.02 0.02 0.04 0.06 Supply Voltage: 2500Vdc, K: Cathode, Dy: Dynode, P: Anode, G: Grid 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. © 1999 Hamamatsu Photonics K.K. PHOTOMULTIPLIER TUBE R1250 Figure 1: Typical Spectral Response Figure 2: Typical Gain Characteristics TPMHB0518EA CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) 100 109 CATHODE RADIANT SENSITIVITY TPMHB0519EA 108 10 107 GAIN QUANTUM EFFICIENCY 1 106 105 0.1 104 0.01 200 400 600 103 500 800 700 1000 1500 2000 3000 SUPPLY VOLTAGE (V) WAVELENGTH (nm) Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) 133 ± 2 FACEPLATE Socket (E678-20A) 120MIN. 20 PHOTOCATHODE DY9 6 DY7 5 20 K 58 52.5 G1 13 DY5 4 3 DY3 2 1 G2 & DY1 IC 14 15 DY6 16 DY4 17 DY2 18 IC 19 6 HA COATING 7 276 ± 5 259 ± 5 DY14 IC P DY12 DY13 DY10 9 10 11 12 13 DY11 8 DY8 10 21 20 PIN BASE JEDEC No. B20-102 52 56 52.5MAX. TPMHA0018EA TACCA0003EA 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 TPMH1213E02 DEC. 1999