Category: C

Within magnetic tape storage or magnetic discs, there exists a designated region known as the directory. The directory serves as a condensed or abbreviated compilation of the stored information, providing a convenient means of accessing and referencing the data. In CT equipment, users have the option to request the directory for display on the cathode…

In the realm of acoustic phenomena, there exists a remarkable occurrence—an entity that presents itself as devoid of echoes. This distinct structure, known as an echo-free entity, holds immense significance in the field of scanning. It stands as one of the foremost patterns to be identified and acknowledged during the scanning process. The absence of…

In the realm of scientific measurement, there exists a unit that quantifies the frequency of a phenomenon the hertz. It is through this unit of measurement that the frequency of various oscillations is conveyed. Specifically, within the United States, a frequency of sixty cycles is employed in the context of incoming electrical lines. This particular…

Within the realm of electrical devices, there exists a remarkable contraption. Its purpose is to ensure that substantial fluctuations in voltages are met with only minimal alterations in the filament current. This impressive feat is accomplished through the utilization of a condenser and a diminutive transformer in the primary circuit. Thanks to this ingenious arrangement,…

The numerical values assigned to denote the X-ray attenuation in every individual element of the CT image.  

There are two immobile grids: one grid consists of lead strips aligned along the long axis, while the second grid has lead strips arranged perpendicular to the first one. These grids are not commonly employed for routine radiography but may find application in specific radiographic examinations.  

A vacuum discharge tube, originally employed by Dr. Roentgen during the momentous discovery of X-rays, and subsequently utilized by Sir William Crookes in his early experimental endeavors.  

A curving line, either black or white in appearance, emerges when the film is flexed around the edge of a finger or fingernail.  

A voltmeter measures the apex or utmost magnitude of the voltage exerted on its terminals.  

An appropriate grade of malleable iron that is well-suited for the cores utilized in chokes, transformers, and relays.