The LD-50 for radiation exposure in man is:
100 to 200 rads.
200 to 500 rads.
500 to 800 rads.
800 to 3,000 rads.
The length of time it takes for one-half of a given number of atoms of one
element to decay into another element is the atom's:
Of the following, the most important factor in selecting a radiation detector is:
Weight and portability of the instrument.
Type of radiation.
Cost of the instrument.
Chemical form of the radiation.
What types of radiation does the AN/VDR-2 detect?
Gamma and alpha.
Gamma and beta.
Gamma, alpha, and beta.