For the vast majority of mobile radiographic units, which are not equipped with remote control exposure devices, the cord leading to the exposure switch should be long enough to permit the radiographer to stand at least _______ from the patient, the x-ray tube, and the useful beam to reduce occupational exposure.
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Which of the following is true when the radiologist limits f…
Which of the following is true when the radiologist limits fluoroscopic field size to include only the area of clinical interest?
Image intensifier fixed fluoroscopic systems require a sourc…
Image intensifier fixed fluoroscopic systems require a source-to-tabletop distance that must not be less than ______________
Patient dose can be decreased by using: 1. Grids 2. Lower kV…
Patient dose can be decreased by using: 1. Grids 2. Lower kVp & higher mAs
Which of the following defines the ratio of the dose of a re…
Which of the following defines the ratio of the dose of a reference radiation quality (conventionally, 250 keV x-rays) necessary to produce the same biologic reaction in a given experiment that is produced by a dose of the test radiation delivered under the same conditions?
Members of the general public not occupationally exposed hav…
Members of the general public not occupationally exposed have an annual effective dose limit of ________ for continuous (or frequent) exposure from artificial sources other than medical and _________ for infrequent annual exposure.
Breakdown of a water molecule into smaller molecules, produc…
Breakdown of a water molecule into smaller molecules, producing both ions and free radicals is termed _____________________.
To implement an effective radiation safety program in a faci…
To implement an effective radiation safety program in a facility that provides imaging services, which of the following must the employer provide? 1. An appropriate environment in which to execute an ALARA program 2. The necessary resources to support an ALARA program 3. X-ray equipment capable of only producing very low kilovoltage
An alpha particle is an example of _________ LET radiation.
An alpha particle is an example of _________ LET radiation.
All of the following information is found on a dosimetry rep…
All of the following information is found on a dosimetry report EXCEPT