A Co57 check source with an activity of 0.05 uCi is permanen…
A Co57 check source with an activity of 0.05 uCi is permanently attached to a Geiger counter. If Γ=0.56 R·cm2 /mCi ·hr at 1 cm, what is the exposure rate to a technologist who sits 30 cm (about 1 ft) from the unshielded source?
Read Details