Gamma-ray astronomy has become a rich field of research and matured significantly since the launch of NASA's Compton Gamma Ray Observatory in April 1991. Studies of the diffuse gamma-ray emission of the Galaxy can now be performed in far more detail and extended into the MeV regime, ...
On the other side of the band is high-frequency short-wavelength radiation or ultraviolet light. This includes X-rays and the highest frequency electromagnetic radiation, gamma rays, which have wavelengths that are billions of times shorter than visible light. Gamma rays don't have a color becaus...
Do gamma rays have mass? Gamma radiation, unlike alpha or beta, does not consist of any particles, instead consisting of a photon of energy being emitted from an unstable nucleus.Having no mass or charge, gamma radiation can travel much farther through air than alpha or beta, losing (on av...
Gamma Ray Make-up:Gamma rays are highly energetic rays and are part of the electromagnetic (EM) spectrum at the far end of high frequencies and corresponding short wavelengths even higher than x-rays.Answer and Explanation: Gamma rays like all types of EM radiation are made up of photons (...
For this scan, a small amount of radioactive material is injected into a vein, inhaled or swallowed. The radioactive material accumulates in the brain and gives off gamma rays, which are captured with a special type of camera [source: Radiologyinfo.org]. PET scans are useful for identifying...
The amount of energy in a light wave is proportionally related to its frequency: High frequency light has high energy; low frequency light has low energy. So, gamma rays have the most energy (part of what makes them so dangerous to humans), and radio waves have the least. Of visible lig...
Do gamma rays travel at the speed of light? Can the speed of light change? Is electricity as fast as the speed of light? Can humans travel at the speed of light? Are lasers made of mechanical waves? How do high power fiber lasers work?
Electromagnetic radiation comes in different forms depending on the frequency. Gamma rays andX-rayshave high frequencies and therefore high energies, while radio waves and microwaves are on the other side of the band as they have lower frequencies. You may remember the following chart of the elect...
Radiation is a very common cancer treatment. About 50% of all cancer patients will receive radiation treatment, which may be delivered before, during, or after surgery and/or chemotherapy. Radiation can be delivered externally -- where X-rays, gamma rays, or other high-energy particles are del...
The magnetic field of the sun protects the earth from cosmic or galactic cosmic rays emitted by supernova explosions, stars, and gamma-ray bursts [97]. Nevertheless, galactic cosmic rays could still reach the earth during the solar minimum, the least solar radiation energy period. In the 20th...