Kinetic isotope effect approximation that reduced masses are approximately equal to the masses of the hydrogen, deuterium, or tritium was used. In addition, the vibrational motion was assumed to be approximated by a harmonic oscillator, so that formula_19 (X = H, D, or T). The subscript ""s"" refers to these "semi-classical" kinetic isotope effects, which disregard quantum tunneling. Tunneling contributions must be treated separately as a correction factor. For isotope effects involving elements other than hydrogen, many of these simplifications are not valid, and the magnitude of the isotope effect may depend strongly on some or all of the neglected factors. Thus, kinetic
Board of Radiation and Isotope Technology also manufactures self-luminescent tritium filled sources. The organisation also develops radiation-based medical equipment to treat cancer. BRIT operates three radiation facilities, one of them a spice and allied products irradiation facility in Vashi and another a "Krushak" (Krishi Utpadan Sanrakshan Kendra) radiation processing plant at Nashik. G. Ganesh is BRIT's Chief Executive officer since 1 August 2015, succeeding Anil Kumar Kohli (2006-2015). Board of Radiation and Isotope Technology Board of Radiation and Isotope Technology in short known as "BRIT" is a unit of the Department of Atomic Energy with its headquarters in Navi Mumbai, India. It is involved in production,