Category: A

Amphoteric refers to the ability of a substance to exhibit chemical reactivity as either an acid or a base, depending on the prevailing pH conditions. In the context of film emulsion gelatin, it is considered an amphoteric material, capable of reacting as an acid or a base depending on the pH environment.  

The thickness of aluminum that provides equivalent attenuation, based on specific conditions, as the material being considered.  

A single period of alternating current, wherein one complete alternation occurs within a duration of 1/120 second. This unit of time is also known as an impulse or pulsation.  

Voltages that exhibit a constant fluctuation in magnitude and periodically reverse their direction at regular intervals. They are commonly referred to as alternating current (a-c) voltages.        

The process of radioactive decay that takes place when a nuclide emits an alpha particle. As a result, a new nuclide is formed, with a mass number that is four units smaller and an atomic number that is two units smaller than the original nuclide.  

An alloy primarily composed of aluminum, nickel, and cobalt, known for its exceptional retentivity. This alloy is extensively utilized in the production of permanent magnets, which are essential for generating robust magnetic fields.  

In the context of x-ray and gamma radiation, an “air equivalent” chamber refers to a specialized device wherein the materials composing the chamber walls and electrodes are made of substances that closely resemble those found in a standard free air ionization chamber. This design ensures that the chamber accurately simulates the behavior and response of…

An imaging method employed to mitigate the effects of secondary and scattered radiation involves positioning the patient approximately six inches away from the x-ray film during the exposure. This six-inch separation between the patient and the film serves as an effective radiation filter, effectively reducing unwanted radiation interference.  

The most elementary form of a transformer comprises a pair of extensively insulated wire coils positioned in parallel to one another.  

The cassette comprises a copper step wedge, an intensifying screen, and a light absorber. The copper step wedge provides a specific penetration value, while the intensifying screen, which is not shielded by the step wedge, allows light to pass through the light absorber before reaching the film. This process reduces the exposure. The penetration through…