FIELD: cathode-ray technology. SUBSTANCE: device for extraction of charged particles from vacuum into atmosphere has particle source 1, differential pumping chamber 2 and inlet 3 and outlet 4 holes fitted with branch pipes 5 and 6 for extraction of particles uniaxial to source. Each branch pipe has at least two slit grooves 7 and 8, one of them being directed clockwise and the other one- counterclockwise. Device realizes effect under which hole of bigger section stops to let gas pass through. EFFECT: diminished power intensity, enhanced quality and expanded assortment of treated materials, decreased operational expanses and reduced treatment cycle. 1 dwg
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