PMT-176 has multialkali photocathode of S20 type, electron electrostatic focusing system, 12-dynode multiplication system. The device is intended for photometry and spectrometry, γ-radiation detection by scintillation method, for diagnostic radioisotope equipment. The device could be used in ecology, biophysics, geology, geophysics, nuclear physics, high energy physics, etc.
PMT-176 is produced in a glass balloon with head-on optical input and with rigid leads. Input window is made of boron-silicate glass C50-3 or C52-2.
|Photocathode diameter, mm||40|
|Device diameter, mm||52|
|Spectral response, nm||300 ÷ 850|
|Supply voltage, V||130|
|Photocathode luminous sensitivity, A/lm||52|
|Photocathode radiant sensitivity (λ=(410±10) nm), μA/W||≤1500|
|Anode luminous sensitivity, μA/lm||10|
|Dark current, nA||8|
|Gain under normal conditions||1·105|
|Pulse height resolution, %||on 137Cs||7,3|
|Self-noise energy equivalent , keV||≤1,5|
|Luminous characteristic non-linearity at pulse mode with anode current of 0.3 A and pulse time ≤2×10-6 s, %||≤30|
SPECTRAL RESPONSE CHARACTERISTICS