Non-stochastic effects are biologic somatic effects that exhibit a threshold dose below which the effect does not occur. They do not cause genetics effects (e.g. Cancer)

Stochastic effects are effects that occur by chance and which may occur without a threshold level of dose. The probability is proportional to the dose and the severity is independent of the dose. In the context of radiation protection, the main stochastic effect is cancer.

Teratogenesis is a birth defect due to irradiation of the fetus

Thomas A. Edison invented the fluroscope in 1896. Clarence Dally was Mr. Edison’s assistant

In the U.S., power is supplied at 60 Hz. There are 60 television fields per second and 30 television frames per second.

The Fluoroscopic ABC should be evaluated annually to ensure the component is properly working

Fluoroscopy is interrupted when the 5 minutes has elapsed and the radiographer must reset the timer to continue the procedure.

Size distortion is primarily caused by the same factors that affects plain radiography magnification, primarily OID (Object to Image Distance).

Recall that magnification= input screen/ diameter of input screen used during magnification

Magnification 9″/5″
Magnification= 1.8

The formula used to calculate brightness gain is Minification Gain X Flux Gain