The electrostatic lenses in an image intensifier carry a _____ charge and are supplied with _____ of power during routine usage.

The principle advantage of the smaller field of a dual or multiple-mode image intensifier is: Increased resolution Less magnification Lower patient dose

Which of the following substances will not emit light when bombarded with x-rays or electrons?

The photocathode is made of which of the following substances? Sulfide Antimony Cesium

Which of the following statements is/are true when viewing fluoroscopy in the magnification mode? Resolution increases Resolution decreases Patient dose increases Patient dose decreases The voltage to the electrostatic lenses increases The voltage to the electrostatic lenses decreases The focal point moves closer to the input phosphor The focal point moves closer to the output phosphor

During stationary fluoroscopy, the SSD cannot be less than _____.

The input phosphor of the image intensifier is approximately _____ in diameter.

During mobile fluoroscopy, the SSD cannot be less than _____.

A fluoroscopic examination is being performed and the radiologist chooses to utilize the magnification mode.  Which of the following will occur with the use of this feature?

In an over-table unit, which of the following components will the carriage hold?