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Which of the following results in all-directional scatter?

For x-ray and gamma ray photons with energies up to 3 million electron volts (MeV), which of the following radiation quantities may be defined as the measure of the total electric charge of one sign, either all pluses or all minuses, per unit mass that these two types of radiation generate in dry air at standard temperature and pressure (760 mm Hg or 1 atmosphere at sea level and 22 C)?

The total kinetic energy released in a unit mass (kilogram) of air and expressed in metric units of joules per kilogram is

What is used to account for differences in tissue characteristics when determining effective dose to biologic material? 1. Tissue weighting factor 2. Radiation weighting factor 3. Absorbed dose

How is dose area product usually specified?

In a hospital setting, which of the following professionals is expressly charged by the hospital administration with being directly responsible for the execution, enforcement, and maintenance of the ALARA program?

Sources of medical radiation exposure include  1. computed tomography 2. sonography 3. magnetic resonance imaging

The person responsible for ascertaining that all radiation guidelines are adhered to and that personnel understand and use radiation safety measures is the 

The single  most important source of scatter radiation in both radiography and fluoroscopy is the

Which of the following contributes most to  occupational exposure?