Dosimetry of gamma-irradiated semiconductor devices

Extensive use is made of 60Co gamma radiation for the investigation of radiation effects in semiconductor devices. A survey of the literature, however, reveals widespread inconsistencies and loose usage in the units of dosimetry. This note points out that rigorous definitions of the concepts ''absorbed dose'' and ''exposure,'' and their units, have been established by the International Commission on Radiation Units and Measurements (ICRU), and suggests greater consistency by workers in the field of radiation effects in electronic devices and materials