X-rays

 X-rays

Beyond the UV region of the electromagnetic spectrum lies the X-ray region. 

We are familiar with X-rays because of its medical applications.

It covers wavelengths from about 10^-8 m (10 nm) down to 10^-13 m (10^-4 nm). 

One common way to generate X-rays is to bombard a metal target by high energy electrons. 

X-rays are used as a diagnostic tool in medicine and as a treatment for certain forms of cancer.

 Because X-rays damage or destroy living tissues and organisms, care must be taken to avoid unnecessary or exposure.