MEDICINE
RADIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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in the copper stem
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in the focusing cup
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at the tungsten target
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at the cathode
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Detailed explanation-1: -The tube has a positively charged anode and a negatively charged cathode.-The anode has tungsten target along its edge. The target is the area of the anode where a stream of electrons violently collide with force so great, that x-rays are produced.
Detailed explanation-2: -X-rays are generated via interactions of the accelerated electrons with electrons of tungsten nuclei within the tube anode. There are two types of X-ray generated: characteristic radiation and bremsstrahlung radiation.
Detailed explanation-3: -In the production of characteristic radiation at the tungsten target, the incident electron: ejects an inner-shell tungsten electron.
Detailed explanation-4: -Tungsten is the preferred target material in x-ray tubes due to its desirable properties such as high atomic number for Bremsstrahlung production and a high melting point (3422 °C).