An acceptable radiograph was taken using 40 mAs at 80 kVp at a distance of 60 inches. A second radiograph is requested at 40 inches. What mAs should be used to produce this radiograph with a 40-inch distance?

The majority of x-rays produced by dental x-ray machines are formed by:

a. Characteristic radiation b. Radionuclide decay c. Bremsstrahlung radiation d. Coherent scattering

The cellophane tape test is used for detection of pinworm.

Answer the following statement true (T) or false (F)