The H14768 is a photomultiplier tube module consisting of a newly developed high sensitivity side-on photomultiplier tube, a high-voltage power supply circuit and a thermoelectric cooler. Cooling is super-efficient in the H14768 because the thermoelectric cooler is directly coupled to the photocathode of the photomultiplier tube. This also drastically reduces thermal noise (thermal electrons) emitted from the photocathode to allow making accurate measurements with a high signal to noise ratio even at very low light evels.
Specifications
• Photocathode Area Shape : Square
• Photocathode Area Size : 10 x 14 mm
• Wavelength (Short) : 185 nm
• Wavelength (Long) : 900 nm
• Wavelength (Peak) : 400 nm
• Dimension (W x H x D) : 63.5 x 133.5 x 64.0 mm
• Input Voltage : +11.5 to +15.5 V
• Max. Input Voltage : 18 V
• Max. Input Current : 8 mA
• Max. Output Signal Current : 58 μA
• Max. Control Voltage : 1.2 V
• Recommended Control Voltage Adjustment Range : +0.2 to +1.2 V
• [Cathode] Luminous Sensitivity Min. : 140 μA/lm
• [Cathode] Luminous Sensitivity Typ. : 300 μA/lm
• [Cathode] Blue Sensitivity Index (CS 5-58) Typ. : 9
• [Cathode] Red/White Ratio Typ. : 0.3
• [Cathode] Radiant Sensitivity Typ. : 76 mA/W
• [Anode] Luminous Sensitivity Min : 400 A/lm
• [Anode] Luminous Sensitivity Typ. : 2000 A/lm
• [Anode] Radiant Sensitivity Typ. : 5.0 x 105 A/W
• [Anode] Dark Current (after 30min.) Typ. : 0.08 nA
• [Anode] Dark Current (after 30min.) Max. : 0.4 nA
• [Time Response] Rise Time Typ. : 2.2 ns
• Ripple Noise (peak to peak) Max. : 0.5 mV
• Settling Time Max. : 10 s
• Operating Ambient Temperature : +5 to +35 ℃
• Storage Temperature : -20 to +50 ℃
• Weight : 570 g