Determining absolute absorbed dose rates for electron beams

The practice describes the measurement of fluence rates of electron beams with energies from 5 to 50 MeV. The measurement technique employs a series of scattering plates, collimators, and a Faraday cup. Procedures for calculating absolute absorbed dose rates in thin slabs of silicon from the measured fluence rates are given. Although the practice may be used for other applications, the specific area of interest is radiation-hardness testing of electronic devices. The practice is applicable to absorbed dose rates of 105 Gy(Si)/s[107 rad(Si)/s] or greater and to beam pulse lengths from 0.1 μs to several microseconds