| 摘要 |
FIELD: physics. ^ SUBSTANCE: apparatus for X-ray radiometric analysis of composition of liquid media, having a radionuclide source of radiation and a semiconductor detector with a standalone Peltier effect-based cooling system, installed in a housing which is mounted on the outer side of a vessel with the analysed medium, and having a double-layer window made from material which transmits radiation of the radionuclide source and characteristic X-ray radiation of the analysed elements, and a sensor which signals rapture of the layer of material in contact with the analysed medium, where inside the housing in a plane perpendicular to its axis there is a radiator made from heat-conducting material, which is in form of a plate with a centre hole; between the radiator and the housing there is a spacer made from solid electrically insulating heat-conducting material; a detector with a cooling system is mounted on the radiator, the head part of which, with a beryllium window for detecting radiation, is placed in the centre hole of the radiator and the hot junction of the cooling system is connected to the radiator, a digital pulsed spectrometer whose input is connected to the output of the detector, a device for transmitting digital information to a control computer, the input of which is connected to the output of the digital spectrometer, and contacts of the sensor which signals rapture of the layer of the material of the window, which is in contact with the analysed medium, are placed between layers of the material of the window and are made in form of two metallised coatings in form of two concentric circles around the hole on the surface of a plate, made from dielectric material. ^ EFFECT: high accuracy of analysis. ^ 1 dwg |
