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AKHIL KUMAR.A
Feb 28

Describe the basic construction of an xray tube, highlighting the key components and their functions ?

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Feb 28
An x-ray tube is a device used to generate x-rays for medical imaging, industrial testing, and other applications. The basic construction of an x-ray tube consists of the following key components:

1. Cathode: The cathode is a negatively charged electrode that emits electrons when heated. It is typically made of a tungsten filament that is heated to produce a stream of electrons.

2. Anode: The anode is a positively charged electrode that serves as the target for the electron beam generated by the cathode. It is typically made of a tungsten target that is bombarded by the electrons, producing x-rays.

3. X-ray tube housing: The x-ray tube housing is a protective casing that surrounds the cathode and anode to contain the x-rays and prevent radiation leakage. It is typically made of lead or other radiation-shielding materials.

4. Focusing cup: The focusing cup is a metal structure that surrounds the cathode and helps to focus the electron beam onto the anode target. It is designed to shape and direct the electron beam for optimal x-ray production.

5. Glass or metal envelope: The x-ray tube is enclosed in a glass or metal envelope that provides insulation and protection for the internal components. The envelope also helps to maintain a vacuum inside the tube to prevent air from interfering with the electron beam.

6. Cooling system: X-ray tubes generate a significant amount of heat during operation, so they are equipped with a cooling system to dissipate this heat and prevent overheating. The cooling system typically consists of a rotating anode or a water-cooled target to help dissipate heat efficiently.

Overall, the basic construction of an x-ray tube involves the interaction of the cathode, anode, focusing cup, housing, envelope, and cooling system to generate and control the production of x-rays for various applications.
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