R2368

PHOTOMULTIPLIER TUBE R2368 TRANSMISSION MODE PHOTOCATHODE Good Spatial Uniformity, Wide Angle of Radiant Input Multialkali Photocathode For UV-Visible Spectrophotometers and General Applications R2386 is a 28mm (1-1/8 Inch) diameter, side-on photomultiplier tube having a transmission mode multialkali photocathode. The transmission mode photocathode offers 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". GENERAL Parameter Spectral Response Wavelength of Maximum Response Material Photocathode Useful Area (Minimum) Window Material Structure Dynode Number of Stages Base Suitable Socket Suitable Socket Assembly Direct Interelectrode Anode to Last Dynode Capacitance Anode to All Other Electrodes Description/Value 185 to 850 420 Multialkali 16 × 18 UV glass Circular-cage 9 JEDEC No. B11-88 E678-11A E717-05 1.2 3.4 Unit nm nm — mm — — — — — pF pF Figure 1: Typical Spectral Response TPMSB0148EA 100 MAXIMUM RATINGS (Absolute Maximum Values) CATHODE RADIANT SENSITIVITY (mA/W) QUANTUM EFFICIENCY (%) Parameter Anode and Cathode Supply Voltage Anode and Last Dynode Average Anode Current (NOTE 1) Ambient Temperature Value 1250 250 0.1 -80 to +50 Unit V V mA °C CATHODE RADIANT...