Gray (unit) Gray (unit) The gray (symbol: Gy) is a derived unit of ionizing radiation dose in the International System of Units (SI). It is defined as the absorption of one joule of radiation energy per kilogram of matter. It is used as a unit of the radiation quantity absorbed dose which measures the energy deposited in a unit mass at a certain position, and of the radiation quantity kerma, which is the amount of energy that is transferred from photons to electrons per unit mass at a certain position. The corresponding cgs unit to the gray is the rad (equivalent to
Energy Research Institute of Russian Academy of Sciences is the director of the Institute. The Institute employs approximately 80 staff members, of whom 65% are highly skilled specialists. It comprises eight scientific departments: The Institute deploys a matrix organizational structure in order to maximize flexibility. Thus, different departments can work together jointly and each can be modified according to the circumstances. The Institute’s mission is to find solutions to a wide range of contemporary challenges including: efficient energy production and consumption techniques to promote energy savings; appropriate pricing mechanisms for energy markets; and legislation, tax policy and other general issues related to domestic energy policy. ERIRAS work is