Gamma-Ray. Perliani Mabruroh | Raihan Naufal | Ratu Niken Tiara | Resti Febriani Putri. Proudly Present. Definition. Inventor Figures. Characteristics. Application in daily life. How to produce it. Conclusion. Definition of Gamma ray.
PerlianiMabruroh|RaihanNaufal|RatuNiken Tiara |RestiFebrianiPutri
Application in daily life
How to produce it
Gamma rays (γ) are an energetic form of electromagnetic radiation.It has an extremly high frequency and therefore per photon has a high energy.Gamma rays are produced by emitted from the nucleus of some unstable radioactive atoms.
In the end of 1890, Bacquerel discovered radioactivity inadvertently. He covered the uranium salt by using thick black paper and put it on the photographic plate. And then he put it into the drawer without exposed it to sunlight first. A few days later he found that the photographic plate became dark. He speculated that the radiation is stronger than the X ray.
Antoine Henri Becquerel
Gamma ray is discovered by French chemist and physicist, Paul Ulrich Villard in 1900 while studying the radiation emanating from Radium, Polonium and Uranium. He finds that gamma-ray can not be deflected by magnetic fields.
Paul Ulrich Villard
In 1914, Ernest Rutherford and Edward Andrade showed that gamma rays were a form of electromagnetic radiation by measuring their wavelengths using crystal diffraction. The measured wavelengths were similar to those of X-rays and are very short. It was Ernest Rutherford who named gamma rays.
Edward Neville da Costa Andrade
They are commonly produced by the decay of radioactive materials because of the activity of nucleus such as cobalt-60. And also created by other processes such as supernova explosions, fusion, fission and lightning.