X-rays are electromagnetic waves, that cause ionisation. They are widely used in medicine

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The target audience is Physics students at Leaving Cert. It should also be accessible to Transition year students

. . . the bare bones revealed!

X-rays were discovered in 1895 by Wilhelm Roentgen. The properties of x-rays include penetrating and ionising ability. This makes them both useful and dangerous. X-rays are produced when electrons moving at high speed strike metals of high atomic number. Production of x-rays takes place in evacuated tubes using high voltages to accelerate the electrons.

In the distant past, people had to break a bone to encounter x-rays. More recently a routine dental check-up often included the use of x-rays. Presently, whenever flying, the airport security check uses x-rays.


To provide a resource for physics students to learn about x-rays


To enable students to understand
...how x-rays are produced
...how x-rays relate to the rest of physics
...what are the distinctive properties of x-rays
...what are the applications and hazards of x-rays

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