FIELD: physics.
SUBSTANCE: invention relates to accelerative engineering and can be used in nuclear physics and astrophysics. The beam monitor for measuring particles beam intensity and its spatial distribution is a set of signal and high voltage electrodes, disposed perpendicularly to the incident particles, wherein the signal electrodes with locking support columns are separated by gas gap about 100 microns at atmospheric pressure; the voltage is applied between the electrodes , under the influence of which the ionization electrons are collected at the signal electrode.
EFFECT: invention provides a significant increase in the range of variable beam intensities and self-calibration of the detector.
1 dwg
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