The Cherenkov effect A charged particle traveling in a dielectric medium with n>1 radiates Cherenkov radiation if its velocity is larger than the phase velocity of light v>c/n or Î² > 1/n (threshold) The emission is due to an asymmetric polarization of the medium in front and at the rear of the particle, giving rise to a varying electric dipole momentum.
cyclo-. 1. Combining forms relating to a circle or cycle; or denoting an association with the ciliary body. 2. In chemistry, a combining form indicating a continuous molecule, without end, or the formation of such a structure between two parts of a molecule.
Cyclopentane is a highly flammable alicyclic hydrocarbon with chemical formula C 5 H 10 and CAS number 287-92-3, consisting of a ring of five carbon atoms each bonded with two hydrogen atoms above and below the plane. It occurs as a colorless liquid with a petrol-like odor.Its melting point is â94 Â°C and its boiling point is 49 Â°C. Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms.The typical structure of cyclopentane is the envelope conformation. It is formed by cracking cyclohexane in the presence of alumina at a high temperature and pressure.t occurs as a colorless liquid with a petrol-like odor. Its melting point is â94 Â°C and its boiling point is 49 Â°C. Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms.