Category: R

Voltage drop refers to the decrease in voltage that occurs between two points along a conductor as a result of the current flowing through the conductor’s resistance. The voltage drop can be determined by multiplying the resistance, measured in ohms, by the current, measured in amperes, yielding the voltage drop expressed in volts.  

An integrated system comprising an x-ray generator, table, and image intensifier. This system enables the performance of fluoroscopy, spot filming, and radiography from a console situated at a distance from the table.  

A device that functions based on changes in the conditions within one electric circuit and is utilized to establish or interrupt connections in the same or a different electric circuit.  

The relative biological potency of a specific type of ionizing radiation is a measure of its effectiveness in producing biological effects. It is quantitatively determined by comparing the number of rads of 250 Kv x-rays required to achieve a particular biological endpoint with the number of rads of the given radiation type needed to produce…

The light-gathering capability of a lens is quantified by a measurement known as the aperture. This measurement is mathematically expressed as the ratio of the focal length divided by the diameter of the lens entrance pupil. The resulting value obtained from this calculation is commonly referred to as the “f-number.”  

Situated between the secondary coil of the high-voltage transformer and the x-ray tube.  

Radiation is emitted during nuclear disintegration in a manner that causes a noticeable recoil of the nucleus.  

An electron that has been propelled into motion as a result of a collision is also referred to as a Compton electron.  

Radiographic emulsions are produced with the intention of exhibiting desirable speed-rating attributes within a specific range of exposures. However, when exposures fall outside this narrow band, a phenomenon known as reciprocity failure arises, necessitating an additional increase in exposure beyond the anticipated amount. This can be accomplished by augmenting either the milliamperage or the time…

Ultrasound scanning machines have the capability to observe dynamic structures. These scanning devices can employ a single transducer that is oscillated rapidly back and forth within a housing, known as a wobbler. Alternatively, they may incorporate multiple transducers within a housing. Typically, this housing is handheld and when placed on the patient’s abdomen, it generates…