DEV2022 – Lecture 6
The very long wavelengths are not often used in imaging but they can be applied
very importantly for body imaging. The other end of the spectrum, shorter
wavelengths are used in x-rays and research in body organs.
As a general rule, when we look at fluorescence images, the principle is that the
energy and wavelengths of light used in fluorescence microscopy is usually UV
or blue. That wavelength is relatively short and has an energy which is higher
than the wavelengths that are emitted from the specimen that is being viewed.
The energy going in is higher than the energy coming out.
The electromagnetic spectrum:
Gamma rays are the extreme harmful way of imaging.
Notes about the use of X-rays: