Mindblown: a blog about philosophy.
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Crosshatch grid
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.
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Crookes tube
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.
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Crinkle mark
A curving line, either black or white in appearance, emerges when the film is flexed around the edge of a finger or fingernail.
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Crest voltmeter
A voltmeter measures the apex or utmost magnitude of the voltage exerted on its terminals.
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Ultrasound coupling agent
Mineral oil is a frequently employed medium for coupling purposes. When generating a sonogram, it is imperative to eliminate any air pockets or bubbles between the transducer’s surface and the patient’s skin. Hence, a coupling agent is administered onto the patient’s skin, allowing the transducer to smoothly glide over the designated scanning area.
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Core iron
An appropriate grade of malleable iron that is well-suited for the cores utilized in chokes, transformers, and relays.
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Copper loss
The significant magnitude of copper conductor windings within transformers contributes to a discernible dissipation of electrical power.
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Coolidge transformer
Regarding the step-down transformer within the filament circuit.
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Convergence lines
These are conceptual lines that extend from the focal point of the X-ray tube to the lead strips of a focused grid. The lines slope outward from the focal point towards the angle formed by the lead strips of the focused grid.
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Conventional theory of current
Embraced by seasoned electricians, this theory, albeit outdated, posits that electric current travels from the positive terminal along the circuit to the negative terminal. Referred to as the conventional theory, it persisted until 1950 when it was superseded by the electron theory.
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