CLINICAL MEDICINE

MEDICINE

RADIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The generation ofx-radiation occurs:
A
in the copper stem
B
in the focusing cup
C
at the tungsten target
D
at the cathode
Explanation: 

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).

There is 1 question to complete.