In the high-voltage circuit of the X-ray generator, step-up transformers are used to convert the mains voltage (120 - 240 V) to the high voltages (20,000 - 150,000 V) required for x-ray production.2 jul 2020
What are the names of the transformers in the X-ray circuit?
The primary side consists of the line compensator, autotransformer (variable transformer), ammeter (mA selector), and the exposure switch (timing circuit). The secondary side contains the step up and step down transformer, the rectifier diodes, the ground, and the x-ray tube.
What is a transformer in radiography?
A transformer is thus a device that changes ACs or voltages from one level to another. The transformer has a wide range of applications in radiography. The mains voltage is too low to be applied directly across the X-ray tube and so it is increased using a step-up transformer (the high-tension transformer).6 mar 2016
Which tube is used for X-ray?
Coolidge tube
What is high voltage device?
High voltage is therefore a relative notion. High Voltage Devices and Circuits in Standard CMOS Technologies is mainly focused on standard CMOS technologies, where high voltage (HV) is defined as any voltage higher than the nominal (low) voltage, i.e. 5V, 3.3V, or even lower.
What is the purpose of High Voltage?
High voltage is used in electrical power distribution, in cathode ray tubes, to generate X-rays and particle beams, to produce electrical arcs, for ignition, in photomultiplier tubes, and in high-power amplifier vacuum tubes, as well as other industrial, military and scientific applications.
What are high voltage levels?
1-2020 defines high voltage as 115 kV to 230 kV, extra-high voltage as 345 kV to 765 kV, and ultra-high voltage as 1,100 kV. ... In electric power transmission engineering, EHV is classified as voltages in the range of 345,000– 765,000 V.
What does a filament circuit do?
The primary purpose of the filament circuit is to supply a low current to heat the x-ray tube filament for thermionic emission of electrons.7 mar 2016
What is filament in radiology?
Filament. The filament is the source of electrons (cathode) in x-ray tubes. A thin wire (0.1- 0.5 mm, usually tungsten) emits electrons due to thermionic emission, operating in a vacuum and energized with electric current.