In subject area: Chemistry Gamma irradiation is a sterilization method that uses high-energy γ rays from cobalt-60 to denature proteins and nucleic acids, effectively deactivating microorganisms on medical devices. AI generated definition based on: Characterisation and Design of Tissue Scaffolds, 2016 ...
Another type of beta particle is the positron, which occurs as a result of the decay of neutrons in the nucleus. These particles have the same mass as electrons, but have the opposite charge (hence their name).Gamma Rays Gamma rays, or γ-rays, represent the most dangerous result of radi...
(chemistry) The gamma position (the third carbon atom in an aliphatic carbon chain) on a chemical compound. (electromagnetism) A unit of magnetic field strength, equal to 10 microoersteds, or 0.00001 oersted. (graphic arts) A numerical indication of the degree of contrast in a television or...
Determine: (a) What are alpha and beta particle? (b) What are x, beta, and gamma rays? (c) What is radioactivity? When were gamma rays discovered? What radioactive isotopes were released in Chernobyl? What type of electromagnetic radiation is used in UV-vis spectroscopy?
In subject area: Chemistry The mean free path is the average distance the gamma ray travels through the material before it undergoes some sort of interaction, such as Compton scattering or the photoelectric effect. From: Handbook of Radioactivity Analysis: Volume 2 (Fourth Edition), 2020 ...
particle energy, composition and nature of the target material, intensity of the beam, chemical separation processes, quantifying capabilities of measurement technique, nuclear data adopted, proper definition of the yield, and finally the aims of individual measurements and particularly attempts made to ...
which improved the mechanical strength of concrete. This results from the fact that gamma irradiation leads to an improvement in bond strength between the cement paste and the plastic aggregate due to the rough particle surface formed by modifying the molecular structure of the polymer. From these ...
By consideration of the most representative peaks of each material, a particle size of 15 and 28.6 nm was calculated for γ-/α-Fe2O3 and γ-/α-Fe2O3/ZnO, respectively. Figure 1. XRD patterns of the γ-/α-Fe2O3 (down) and γ-/α-Fe2O3/ZnO (up) nanoparticles. XPS ...
radioactivity can be defined as a particle where the nuclei emit it as a result of nuclear reactivity. it is caused due to the inner conflict between the 2 strongest forces in nature. several unstable nuclear isotopes emit radiation. radioactive decay is a random process in a single atom...
Synonyms High-energy photon ; Radiation Keywords Electromagnetic wave, Radiation Definition Electromagnetic wave of high energy. Gamma rays are emitted (1) via transitions between quantum levels of nuclei and elementary particles and (2) via particle–antiparticle annihilation. Gamma rays interact with ...