Exposure timer accuracy must be _____ for exposure times greater than 10 ms and _____ for exposure times less than 10 ms.

In vascular fluoroscopy, which condition results in abnormal bulging?

Which image intensifier components are negatively charged?Input phosphorElectrostatic lensesPhotocathodeOutput phosphor

What is the spatial frequency for a pixel size of 0.2 mm?

Which of the following is/are included in the code of standards that went into effect in 1974 for diagnostic x-ray equipment? Inclusion of manual backup timers for AEC exposures Positive beam limitation A required number of protective lead aprons per fluoroscopic unit Presence of “beam on” indicators to give visible warnings when x-ray exposures are in progress

According to the code of standards for diagnostic x-ray equipment, exposure reproducibility is defined as:

What is the permissible equivalent dose to the lens of the eye for the public?

A radiation worker received an occupational dose of 3 mSv, a natural background dose of 2 mSv, and had 50 mSv from personal medical exams during the year.  The total occupational dose of radiation this person received during the year is:

Which of the following terms is defined as a level of radiation that is recommended as an upper boundary dose that will result in a negligible risk of bodily injury or genetic damage?

To minimize skin exposure to electrons produced by photon interaction with the collimator, the patient’s surface should be at least ____ below the collimator.