Why heavy metals are used for production of X-rays?

A common X-ray source generates X-rays by bombarding a heavy metal target with high energy electrons. The choice of heavy metal controls the range of energy of the emitted X-rays. For instance, a tungsten (W) target produces higher energy X-rays than a silver (Ag) target. This emitted light is X-ray fluorescence.

What is the purpose of the anode in an x-ray tube?

Anode: The anode represents the component in which the x-rays are produced. It is a piece of metal, shaped in the form of a beveled disk, connected to the positive side of electrical circuit. The anode converts the energy of the electrons into X-rays and dissipates the heat, considered the byproduct.

Why is the anode of the x-ray tube made of copper with a tungsten tip?

X-Ray Tube and Anode Materials Because X-ray sources produce large amounts of heat during the beam-formation process system designs must account for these temperature considerations. For this reason, the anode is usually made of tungsten, due to its high atomic number, which increases the intensity of the X-rays.

What are two common anode materials used for producing X-rays?

Most x-ray tube anodes are made of tungsten (the target material). Tungsten has a high atomic number (Z=74) and a high melting point of 3370°C with a correspondingly low rate of evaporation….Synonyms:

• Anticathodes (x-ray tube)
• Anticathode (x-ray tube)
• Anodes (x-ray tube)

Why we use a heavy element as a target why we choose tungsten?

Tungsten is the material of choice for the target on x-ray tube for general radiography is for 3 main reasons: Tungsten has a high melting point (3400° C compared with 1100° C for copper) and therefore can stand up under high tube current with out pitting or bubbling.

What is the purpose of the anode in the x-ray tube quizlet?

The anode is the positive side of the x-ray tube; it conducts electricity and radiates heat and contains the target. 1 – The anode is the electrical conductor, it receives electrons emitted by the cathode and conducts them through the tube.

What is the purpose of the anode?

In electrochemistry, the anode is where oxidation occurs and is the positive polarity contact in an electrolytic cell. At the anode, anions (negative ions) are forced by the electrical potential to react chemically and give off electrons (oxidation) which then flow up and into the driving circuit.

Why is tungsten used in X-ray tube?

Because of its properties such as high atomic number and high melting point (3,422 °C), tungsten is used as the target material in X-ray tubes [1].

What metal is used for the X-ray tube?

An X-ray tube consist of a spiral filament acting as the cathode and a water cooled block of copper as the anode. Both electrodes are sealed off in an evacuated glass-(ceramic)-metal cylinder. The filament made out of Tungsten wire is embedded in a narrow steel groove (1 mm x 10 mm).

Why is tungsten used in radiography?

Why molybdenum is used as target in mammography?

Molybdenum is also often used as the target material for anodes used in mammography because it has an intermediate atomic number (Z=42) and the produced characteristic x-rays are of energies suited for this purpose.