Practise explaining X-ray production by electron bombardment of a metal target, identifying accelerating-p.d. polarity and calculating minimum X-ray wavelength.
Fig. 8.1 shows a tube in which X-rays are produced at a metal target.
Fig. 8.1
Particles are accelerated from the filament to the target by a constant high voltage applied across the terminals X and Y .
State the name of the particles.
On Fig. 8.1, use + and - signs to label terminals X and Y to indicate the polarity of the high voltage.
For an accelerating voltage of 32 kV in Fig. 8.1, determine:
the maximum energy, in MeV , of an X -ray photon produced at the target