Category: T

A specialized x-ray tube specifically crafted for the purpose of x-ray therapy is distinguished from its diagnostic counterpart by operating at lower milliamperage and higher kilovoltage. The construction of a therapy tube deviates to some extent from that of a diagnostic tube. Notably, the focal spot is considerably larger, and it incorporates a stationary node…

The luminescent display panel housed within the cathode ray tube of a television set.  

The television raster is formed by the horizontal lines produced as a result of the trajectory followed by the electron beams used to scan the pick-up and kinescope tubes.  

Within the scanning system, there exists a distinct segment known as the scanning phase where the subject scene undergoes a comprehensive, single-time scan. In the majority of cases, a television frame comprises multiple television fields arranged in an interlace pattern.  

During a scanning cycle, there is a specific phase referred to as the scanning period, wherein the picture is scanned once, starting from the upper left and progressing diagonally towards the lower right.  

The pickup unit serves as the device responsible for transforming a visual scene into corresponding electric signals.  

X-ray studies are conducted with the X-ray tube positioned at a minimum distance of six feet from the film. This arrangement aims to achieve parallel rays and reduce distortion to the greatest extent possible.  

The focal-film distance (FFD) refers to the distance extending from the focal spot of the X-ray tube to the X-ray film.  

The target angle denotes the degree of deviation from a perpendicular direction at which the stream of electrons impinges upon the target.  

Taps refer to additional contact points emanating from the autotransformer, allowing for the precise application of a predetermined voltage to the primary winding of the high voltage transformer.