FIELD: measuring equipment.
SUBSTANCE: use: for measurement of phase parts of a multiphase fluid. The essence is that the device (40) for radiation of the first beam (124) of photons of high energy and, at least, the second beam (130) of photons of lower energy intended for measurement of a multiphase fluid, contains: the radioactive source (44) executed with possibility of generating of the falling beam (120) of the photons of high energy, the target (48) placed opposite to the source (44), made as capable to generate the second beam (130) of photons of by interaction with the first part of photons of high energy of the falling beam (120) radiated by the source (44), thus, the second part of photons of the falling beam (120) radiated by the source (44) passes through a target (48) for formation of the first beam (124), and the device contains also the collimator (50) having inside the central pass (72), placed along a longitudinal axis (B-B'), for the direction of the first beam (124) and the second beam (130) along a longitudinal axis (B-D') to the sensor (104) through a fluid, and the collimator (50) has, at least, one auxiliary pass (76) for the direction of the second beam (130) to the sensor (104), thus one or each auxiliary pass (76) is located around and at distance from the central pass (72) and is open on an entrance opposite to the target (48).
EFFECT: possibility to simply generate at the same time a beam of photons of high energy and a beam of photons of low energy by means of one radioactive source generating close intensities of beams for obtaining of high precision of measurement of phase parts of a multiphase fluid.
14 cl, 6 dwg
