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BK2693P
PHOTOMULTlPLlER TUBES R2693, R2693P Transmission Mode Low Noise Bialkali Photocathode 28mm (1-1/8 inch) Diameter, Side-on Type FEATURES Low Dark Current Low Dark Counts (R2693P) Wide Photocathode Excellent Spatial Uniformity Fast Time Response APPLICATIONS Fluorescence Detector Chemiluminescence Detector Raman Spectroscopy Emission Spectroscopy Light Scattering Detector GENERAL Parameter Description Spectral Response Wavelength of Maximum Response 185 to 650 nm 375 nm Low noise bialkali 16(H) 18(W) Figure 1: Electron Trajectories Unit mm Photocathode MateriaI Minimum Effective Area LIGHT Dynode Structure Number of Stages PHOTOCATHODE PHOTOELECTRONS UV glass Window Material GLASS BULB Circular-cage 9 Direct Interelectrode Capacitances Anode to Last Dynode Anode to All Other Electrodes 1.2 3.4 pF pF FOCUSING ELECTRODES 2nd DYNODE 11-pin base JEDEC No. B11-88 Base SuitabIe Socket E678–11A (option) Applicable Socket Assembly 1st DYNODE 3rd DYNODE E717–21 (option) TPMSC0003EB Figure 2: Typical Spatial Uniformity SPOTSIZE : 1mm DIA X SUPPLY VOLTAGE : 1000V WAVELENGTH : 400nm RELATIVE SENSITIVITY (%) Y 100 100 80 80 60 60 40 40 20 20 0 0 8 4 0 4 DISTANCE FROM CENTER OF PHOTOCATHODE (mm) 8 9 4.5 0 4.5 DISTANCE FROM CENTER OF PHOTOCATHODE (mm) RELATIVE SENSITIVITY (%) Y-Axis X-Axis 9 TPMSB0066EA 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. © 1993 Hamamatsu Photonics K.K.
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