R2368 HAMAMATSU | Alldatasheet

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Parameter Description/Value Unit Spectral Response Wavelength of Maximum Response Photocathode Window Material Dynode Base Suitable Socket Suitable Socket Assembly Direct Interelectrode Capacitance nm nm mm pF pF 185 to 850 420 Multialkali 16 × 18 UV glass Circular-cage JEDEC No. B11-88 E678-11A E717-05 1.2 3.4 Material Useful Area (Minimum) Structure Number of Stages Anode to Last Dynode Anode to All Other Electrodes PHOTOMULTIPLIER TUBE R2368 TRANSMISSION MODE PHOTOCATHODE 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. © 1998 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. Good Spatial Uniformity, Wide Angle of Radiant Input Multialkali Photocathode For UV-Visible Spectrophotometers and General Applications CHARACTERISTICS (at 25 °C) Parameter Typ. Unit Anode Luminous Sensitivity (NOTE 2, 3) Cathode Luminous Sensitivity (NOTE 4) Cathode Red/White Ratio (NOTE 5) Gain (NOTE 2) Anode Dark Current (NOTE 2) Anode Pulse Rise Time (NOTE 2, 6) Current Hysteresis (NOTE 7) Voltage Hysteresis (NOTE 7) A/lm µA/lm nA ns 200 150 0.15 1.3 × 10 1.2 0.1 1.0 Min. Max. MAXIMUM RATINGS (Absolute Maximum Values) Parameter Value Unit Supply Voltage Average Anode Current (NOTE 1) Ambient Temperature V V mA 1250 250 0.1 -80 to +50 Anode and Cathode Anode and Last Dynode Figure 1: Typical Spectral Response TPMSB0148EA R2386 is a 28mm (1-1/8 Inch) diameter, side-on photomultiplier tube having a trans- mission mode multialkali photocathode. The transmission mode photocathode off- ers better spatial uniformity and wider angle of radiation input than conventional side-on tubes which have opaque photocathodes (reflection mode photocathode). Also, this type of photocathodes is independent of polarized light. The R2368 has a 9-stage dynode which provides high gain and employs an HA Coating for noise reduction and an "Anti-hysteresis design". 100 0.1 0.01 200 400 600 800 1000 WAVELENGTH (nm) CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) CATHODE RADIANT SENSITIVITY QUANTUM EFFICIENCY

PHOTOMULTIPLIER TUBE R2368 Figure 2: Typical Spatial Uniformity TPMS1043E01 JUN. 1998 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 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.: Via Della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39)2-935 81 733, Fax: (39)2-935 81 741 TPMSB0149EA Figure 3: Dimensional Outline and Basing Diagram (Unit: mm) TPMSA0026EA NOTES 1. Averaged over any interval of 30 seconds maximum. 2. Supply voltage of 1000 volts is applied between the cathode and the anode using the voltage distribution ratio shown below. 3. The light source is a tungsten filament lamp operated at a distribution temperature of 2856K. The light input is 0.01 microlumen. 4. Under the same conditions as Note 3 except that the light input is 0.01 lumen and 100 volts are applied between the cathode and all other electrodes connected together as an anode. 5. The red/white ratio is the quotiant of the cathode current measured using a red filter (Toshiba R-68) interposed between the light source and the tube by the cathode current measured with the filter removed under the same condition as Note 4. 6. The rise time is the time for the output pulse to rise from 10% to 90% of the peak amplitude when the entire photo- cathode is illuminated by a delta function light pulse. 7. Hysteresis is a temporary instability in anode current after light and voltage are applied. K: Cathode, Dy: Dynode, P: Anode Electrodes Distribution Ratio K Dy1 Dy2 Dy3 Dy4 Dy5 Dy6 Dy7 Dy8 Dy9 P Warning-Personal Safety Hazards Electrical Shock — Operating voltage applied to this device presents shock hazard. 5 76 KDY1 DY2 DY3 DY4 DY5 DY6 DY7 DY8 DY9 P DIRECTION OF LIGHT 29.0 ± 1.7 18MIN. PHOTO- CATHODE 16MIN. 49.0 ± 2.5 76MAX. 90MAX.

11 PIN BASE

JEDEC No. B11-88 32.2 ± 0.5 HA COATING 100 15 10 5 0 5 10 15 Y X 15 10 5 0 5 10 15 DISTANCE FROM CENTER OF PHOTOCATHODE (mm) DISTANCE FROM CENTER OF PHOTOCATHODE (mm) SPOT SIZE : 1mm DIA. SUPPLY VOLTAGE: 1000V WAVELENGTH : 400nm RELATIVE SENSITIVITY (%) X-Axis Y-Axis CATHODE ANODE