what are the uses of gamma rays?

Question

how will we apply it in medicine, in galaxy??

Answer 1

The powerful nature of gamma rays has made them useful in the sterilization of medical equipment by killing bacteria. They are also used to kill bacteria and insects in foodstuffs, particularly meat, marshmallows, pies, eggs, and vegetables, to maintain freshness.

Due to their tissue penetrating property, gamma rays/X-rays have a wide variety of medical uses such as in CT Scans and radiation therapy (see X-ray). However, as a form of ionizing radiation they have the ability to effect molecular changes, giving them the potential to cause cancer when DNA is affected.

Despite their cancer-causing properties, gamma rays are also used to treat some types of cancer. In the procedure called gamma-knife surgery, multiple concentrated beams of gamma rays are directed on the growth in order to kill the cancerous cells. The beams are aimed from different angles to focus the radiation on the growth while minimizing damage to the surrounding tissues.

Gamma rays are also used for diagnostic purposes in nuclear medicine. Several gamma-emitting radioisotopes are used, one of which is technetium-99m. When administered to a patient, a gamma camera can be used to form an image of the radioisotope's distribution by detecting the gamma radiation emitted. Such a technique can be employed to diagnose a wide range of conditions (e.g. spread of cancer to the bones).

Gamma ray detectors are also starting to be used in Pakistan as part of the Container Security Initiative (CSI). These US$5 million machines are advertised to scan 30 containers per hour. The objective of this technique is to pre-screen merchant ship containers before they enter U.S. ports.

Answer 2

Gamma rays are used in Radiography - i.e. treatment of malignant cancerous cells in the body.

They can also cause cancer if too many are given as they can destroy the DNA within the cell, making it replicate wrongly (causing a chain reaction of abnormal cells being created.)

In other ways, some atoms emit gamma rays to lose energy but maintain their mass - sometimes they can be products of radioactive decay alongside alpha or beta decay.

The fundamental difference between X-Rays and Gamma rays is that Excited Electrons in an atom emit X-Rays, but it is the nucleus of the atom (i.e the Protons & Neutrons) that emits the Gamma rays. They are of very high energy compared to visible light ~ 11 MeV (or 1.76 x 10^-12 Joules) per Ray.

Answer 3

Gamma rays can be used to treat tumours which would otherwise be difficult to access - particularly brain tumours. It's known as the Gamma knife.
If you inject radioactive compunds into the body - they can emit gamma rays which are detected using gamma cameras - so gamma rays are useful in diagnostics also.
As wikipedia says - gamma rays are commonly used for sterilization.
In astronomy, gamma rays are high energy photons emitted by stars and larger objects - so we learn more about the universe by studying the non-visible wavelengths.

Answer 4

Gamma radiation is the most energetic of all radiations (the others being Alpha and Beta).

Its used for X raying critical welds on nuclear submarines, or for killing cancer in medicine

Answer 5

They created the HULK!!!!!!