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ФЭУ-79 Photoelectric multiplier
ФЭУ-79 Photoelectric multiplier
ФЭУ-79 Photoelectric multiplier

ФЭУ-79 Photoelectric multiplier

$ 6.33

Availability: 25 in stock
  • Restocking Fee: No
  • Condition: Previously used, but no defects
  • Item must be returned within: 14 Days
  • Refund will be given as: Money Back
  • Model: FEU-79
  • All returns accepted: Returns Accepted
  • Country/Region of Manufacture: Russian Federation
  • Return shipping will be paid by: Buyer

    Description

    Photoelectron multiplier with electrostatic focusing of electrons for measuring very small light fluxes in a wide spectral range. It is used in astronomy, astrophysics and spectral analysis. The photocathode is antimony-sodium-potassium-cesium. Optical input - ends. The diameter of the working area of ​​the cathode is 6 mm. Number of cascades of amplification 11. Design of glass, with a socle (РШ32). Weight 150 gr.
    The spectral sensitivity region is 300-830 nm
    In the region of maximum spectral sensitivity is 400-440 nm
    The sensitivity of the photocathode is ≥120 μA / lm
    The sensitivity of the anode at Upt = 1.85 kV 100 A / lm
    In Upt = 2.4 sq. 1000
    Dark current at Upt = 2.4 ≤k 4 × 10-8 a
    Output current ≤ 100 μA
    Sensitivity threshold ≤4 × 10-13 lm / HZ1 / 2
    Operating time - ≥1500 h
    Criteria for evaluation
    The sensitivity of the anode at Upt = 2.5 kV 100 A / lm
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