R4998 HAMAMATSU | Alldatasheet
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Parameter Description/Value Unit Spectral Response Wavelength of Maximum Response Photocathode Window Material Dynode Base Suitable Socket nm nm mm dia. 300 to 650 420 Bialkali Borosilicate glass Linear-focused 12-pin base JEDEC No. B12-43 E678-12A (supplied) Material Minimum Effective Area Structure Number of Stages PHOTOMULTIPLIER TUBE R4998 MAXIMUM RATINGS (Absolute Maximum Values) 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. © 1999 Hamamatsu Photonics K.K. Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. Fast Time Response, 25 mm (1 Inch) Diameter, 10-stage, Bialkali Photocathode, Head-On Type CHARACTERISTICS (at 25 °C) Parameter Min. Unit Parameter Value Unit Supply Voltage Average Anode Current Ambient Temperature 2500 250 0.1 -30 to +50 Vdc Vdc mA Between Anode and Cathode Between Anode and Last Dynode Cathode Sensitivity Anode Sensitivity Gain Anode Dark Current (after 30min. storage in darkness) Time Response Luminous (2856K) Radiant at 420nm Blue (CS-5-58 filter) Luminous (2856K) Radiant at 420nm Anode Pulse Rise Time Electron Transit Time 100 9.0 400 4.1 × 10 5.7 × 106 100 0.7 µA/lm mA/W µA/lm-b A/lm A/W nA ns ns 800 Typ. Max. Supply Voltage: 2250Vdc, K: Cathode, Dy: Dynode, P: Anode Assembled type (H6533) is recommended. VOLTAGE DISTRIBUTION RATIO AND SUPPLY VOLTAGE Electrodes Ratio K Dy1 G 1.3 Dy2 4.8 Dy3 1.2 Dy4 1.8 Dy5 Dy6 Dy7 Dy8 Dy9 Dy10 P 1 1.5 3 2.5 NOTE: Anode characteristics are measured with the voltage distribution ratio shown below.
PHOTOMULTIPLIER TUBE R4998 Figure 1: Typical Spectral Response TPMH1261E02 DEC. 1999 TPMHB0518EA Figure 2: Typical Gain Characteristics TPMHB0612EA Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) TPMHA0093EC TACCA0009EB Socket (E678-12A) 200 800 600400 0.01 0.1 100 WAVELENGTH (nm) CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) CATHODE RADIANT SENSITIVITY QUANTUM EFFICIENCY 1000 500 1000 1500 2000 2500 3000 103 105 106 107 108 102 SUPPLY VOLTAGE (V) GAIN 104 2- 3.2 P DY1 DY3 DY5 DY7 (Acc) DY9 DY10 DY8 DY6 DY4 DY2 G K A TEMPORARY BASE REMOVED B BOTTOM VIEW 26 – 1 20 MIN. 71 – 1 13 MAX. 52 MIN. FACEPLATE PHOTO- CATHODE
12 PIN BASE
No. B12-43 A HA COATING SMA CONNECTOR B 37.3 – 0.5 6 7 DY1 DY3 DY5 DY7 (Acc) DY9 DY8 DY6 DY4 DY2 G K P DY10 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 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 HOMEPAGE URL http://www.hamamatsu.com