Which of the following are types of beam-restriction devices? 1- Extension cylinders and cones 2- Added filtration 3- Collimators

In reference to question #22, which radiation has the highest LET?

THE ENERGY RELEASED PER LINEAR MICRON BY A RADIATION PASSING THROUGH AN OBJECT IS THE DEFINITION OF:

The exposure rate at 1 foot (30 cm) from a patient who has been given a radiopharmaceutical is .15 mR/hour. What is the exposure rate 6 feet (150 cm) from the same patient?

Which of the following fluoroscopic settings can increase image brightness with the LOWEST increase in patient dose?

The CT dose index (CTDI) can be used to perform calibration checks for quality control purposes.

Which of the following dosimeters measure radiation exposure in mR or R? 1- Pocket dosimeter 2- Film badge dosimeter 3- Thermoluminescent dosimeter

The minimum source-to-skin distance permitted with portable x-ray equipment is:

43 mCi of Gallium-68 (half life = 280 days) is kept in storage in the nuclear medicine department “hot lab.” How much Ga-68 remains after 1,680 days?

The ultimate goal of Positive Psychology for African Americans is: