David Sang and Graham Jones Solutions for Chapter: Medical Imaging, Exercise 2: Questions

(a)  Summarise the energy changes that take place in an X-ray tube.

(b) An X-ray tube is operated with a potential difference of $80 kV$ between the cathode and the tungsten anode. Calculate the kinetic energy (in electronvolts and joules) of an electron arriving at the anode. Estimate the impact speed of such an electron (assume that the electron is non-relativistic).

Charge on an electron $=1.6\times {10}^{-19 }C$

Mass of an electron $=9.1\times {10}^{-31} kg$

Determine the minimum wavelength of X-rays emitted from an X-ray tube operated at a voltage of $120\mathrm{kV}$.

Charge of an electron $=1.6\times {10}^{-19 }C$

Speed of light in vacuum $=3\times {10}^8 m/s$