RAD has various meanings in the NASA category. Discover the full forms, definitions, and usage contexts of RAD in NASA.
Acronym for RAdio Detection And Ranging. An electronic system designed to transmit radio signals and receive reflected images of those signals from a 'target' in order to determine the bearing and distance to the 'target'.
NASAA radian is the angle with vertex at the center of a circle with radius r that encompasses an arc of length r.
NASAThe total amount of radiation energy absorbed by a substance. This value is usually expressed in "ergs per gram", and is denoted by the following units: Roentgen a quantity of gamma or X-Ray radiation equal to approximately 83 ergs of absorbed energy per gram of air, REP a quantity of ionization that causes an energy absorption of approximately 83 to 93 ergs per gram of tissue, REM similar to REP, except used to denote biological effects, and, RAD the unit of dosage related to elastomers, independent of type of radiation specimen, and denoting energy absorption level of 100 ergs per gram of elastomer: approximately equal to 1.2 Roentgens.
NASALast updated: