FIELD: measuring engineering.
SUBSTANCE: device comprises unit for power supply, photomultiplier, main pulse amplifier, pulse counter, nontransparent chamber with the shield, light source, unit for control of shield, and cell. The cell is provided with the converting lens that is mounted above the cell. The object set in the cell can move under the light source and photomultiplier. After converting the flux of the quantum light that passes through the lens and amplifier of the photomultiplier, the pulses can be recorded.
EFFECT: enhanced efficiency.
1 cl, 1 dwg
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