The device is designed for studies of welds of metal structures by X-ray method. With its help, foreign inclusions are detected (tungsten, oxide, slag, etc.), cracks, burn-throughs, pores and lack of penetration.
The device ARINA-9 is a wearable autonomous source of x-ray radiation. Its presence in the arsenal of non-destructive testing laboratories is completely justified, first of all, on the road. The ability to work from the power source on batteries (SPRUT-IPA 24.18 - delivered separately), reliability and safety in operation, small size and weight, full compliance with the declared characteristics - factors confirmed by many experts in the field of flaw detection at industrial enterprises of the oil and gas sector, nuclear energy shipbuilding. The ARINA-9 pulsed x-ray machine is ideal for field testing of high pressure pipelines of large and small diameters made by fusion welding.
Features of the X-ray apparatus ARINA-9
The equipment includes two main parts: the emitter module and the control panel. In order to protect the operators, the console is placed at a considerable distance from the x-ray source. The blocks are connected by a 25-meter cable.
The design of the product involves its use for frontal and panoramic shooting. With the help of magnetic mounts, tripods and special carts with brackets (purchased separately), a panoramic study of the joints of large-diameter pipelines from the center of the pipe is possible. This is achieved by almost uniform radiation within a hemisphere. To accurately measure the exposure dose, you can use any integral dosimeter. An approximate nomogram of exposure time in relation to ordinary steel is given in the appendix to the instruction manual. We also want to draw your attention to the fact that all products of the ARINA line (the most popular of them: ARINA-9, ARINA-7, ARINA-3), due to their design features, have only one adjustable parameter of the physical quantity - the exposure time. For high-quality, high-contrast images, we recommend using AGFA F8 radiographic film together with the screen manufacturer.
As an additional measure, it is recommended to use the XRS-AP collimator to get clearer images in frontal scanning. The collimator limits the effect of scattered radiation on the active layer of the x-ray film, improving the image quality. In addition, the collimator also acts as a means of radiation protection of personnel due to the multiple attenuation of the unused part of the x-ray radiation.
TTX device provides for its operation in harsh climatic conditions (see the table of technical characteristics). To protect against overheating, a temperature switch is present in its circuit.
The principle of operation of pulsed x-ray machines:
The principle of operation of the equipment ARINA-9 is based on the phenomenon of explosive electron emission arising in a vacuum X-ray tube as a result of the application of a short but powerful high voltage pulse to the cathode. The control circuit provides a constant flow of such pulses through a chain of step-up transformers and a spark gap, which allows you to get at the output of the flash x-rays. Unlike continuous devices, pulse devices use a cold cathode tube. This significantly reduces the cost of equipment, because for its operation does not require complex multi-circuit cooling systems.
