Mindblown: a blog about philosophy.

  • Radiographic resolution

    Radiographic definition refers to the skill and technique employed to create a radiographic image while preserving the intricate structural details of the irradiated area. This term encompasses the capability of the imaging system, such as a screen-film combination, television system, or fluoroscope, to accurately capture and display the fine details in the radiographic image.  

  • Resistor

    A device specifically designed to possess a predetermined amount of resistance, utilized in circuits either to restrict the flow of current or to provide a voltage drop.  

  • Resistance loss

    Power loss refers to the dissipation of power that occurs when current flows through a resistance. The value of power loss, measured in watts, is equal to the resistance in ohms multiplied by the square of the current in amperes.  

  • Resistance drop

    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.  

  • Reset switch

    A machine-operated switch that reinstates regular operation to a control system following the implementation of a corrective action  

  • Remote control diagnostic system

    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.  

  • Relay

    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.  

  • Relative biologic effectiveness

    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…

  • Relative aperture

    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.”  

  • Rectifying circuit

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

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