(3) Shielding. The clothing you wear can give you adequate protection from
alpha and beta radiation. Wear a filtration mask to prevent inhaling radiation, and do
not eat or drink in a contaminated environment. To protect yourself from gamma rays,
you must be on the other side of a lead shield from the gamma ray source. It is more
practical in the field to shield the source of the gamma rays.
Figure 2-2. Electromagnetic spectrum.
Section II. MICROWAVE RADIATION
Our universe is full of waves, some of which we can see such as visible light
waves and others which we can feel such as heat waves. The total radiation of
wavelengths from radio waves to gamma rays is called the electromagnetic spectrum.
The part of the spectrum that is useful for radio transmission is called the radio
frequency region. The radio frequency covers a large part of the spectrum of
about 0.1 to 30 centimeters.
Almost every aspect of human life today is affected by developments in
electromagnetic technology, particularly in the field of microwave technology. There are
applications of microwave technology in industrial, scientific, medical, and military