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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.
Constructive design
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.
DIMENSIONAL OUTLINE
SPECIFICATIONS
| Photocathode diameter, mm | 40 | |
| Device diameter, mm | 52 | |
| Length, mm | 120,5 | |
| 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 |
| on 57Co | 11,5 | |
| 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
