2024年7月18日 · To summarize, x-rays are produced in a standard way: by heating a filament, which releases electrons by thermionic emission, accelerating electrons with a high voltage and allowing them to collide with the focal spot on the target/anode. X-rays are produced via two interactions in the anode.

2016年2月27日 · This chapter examines the x-ray tube itself , its general construction, and how it works. The sole purpose for manipulating electricity in an x-ray circuit is to create the environment in the x-ray tube necessary for x-ray production.

Explain how the parts of the x-ray tube function to produce x-rays. Place the events involving the production of x-rays in chronological order. Differentiate between the terms anode, target and focal spot. Describe the interactions in the anode and the x-ray energies they produce.

Construction of x-ray tube is very important in understanding how the x-rays are produced. With this knowledge we can put to use the best of properties of radiation.

The X-ray source radiation Io passes through the object (the body) and is modulated by the body tissues (μ.d) on its way. This modulated radiation beam Ix interacts with the detector, where the modulated radiation is transformed into modulated light – the X-ray image. The contrast of the image depends on the energy of the X-ray beam.

2016年2月20日 · X-ray tube enclosures are generally constructed from glass but may be metal and/or ceramic. The X-ray tube contains a vacuum in order to accelerate the electrons with maximum efficiency. The electrons are accelerated across a potential difference ranging from 40 to 120 kV in a diagnostic X-ray tube.

X-ray tube design • Filament is heated, releasing electrons via thermionic emission (V f ~ 10V, I f ~ 4A, resulting in T>2000oC) • X rays are produced by high-speed electrons bombarding the target • Typically < 1% of energy is converted to x rays; the rest is heat Figure 2-1 (a). Schematic diagram of x-ray tube and circuit V f X-ray tube ...

2016年3月6日 · 30.3 Construction of X-ray tubes The X-ray tube consists of two main components: the insert , which is mounted inside the tube shield. These components and the light-beam diaphragm (we will discuss its role later in …

2021年3月9日 · The document summarizes the key components and functioning of an X-ray machine. The primary components are the X-ray tube, which contains a cathode that emits electrons and an anode target, and the power supply. The tube is housed within a tube head mounted on an arm, allowing it to be positioned.

X-rays are produced within the X-ray machine, also known as an X-ray tube. No external radioactive material is involved. Radiographers can change the current and voltage settings on the X-ray machine in order to manipulate the properties of the X-ray beam produced.