1mA and time
inversely proportion
2technical factor that sets the length of exposure
time
3time when combined with mA, it will determine the
exposure rate
4it is necessary to avoid body motion during exposure
shorter exposure time
5as stated by arthur fuchs, the blackening on the film remains constant if the total energy exposing the film is constant
reciprocity law
6measure from source to the recording medium
distance
7radiation intensity will vary _ with the square of the distance fron the space
inversely
8distance and beam intensity
increase in distance = decrease beam intensity