Category: P

  • Photoscanner

    A scintiscanner apparatus is employed to generate a graphical representation of pulses obtained from the radioactivity emitted by an isotope within an organism.  

  • Photon theory of radiation

    It is asserted that radiation manifests as an energetic cascade, exhibiting heterogeneity in its composition. This radiation travels at the speed of light, devoid of any electrical charge. It is occasionally referred to as the quantum theory, while Dr. Albert Einstein put forth the proton theory of radiation.  

  • Photovolt pH meter

    It is utilized for pH monitoring purposes, aiming to assess the impact of replenishment rates and verify the state of exhaustion of the developer solution.  

  • Photoelectric interaction with true absorption

    In the process of irradiating a material, the radiation it emits, in the form of photons, has the potential to interact with tightly bound electrons, those in close proximity to the atomic nucleus. This interaction can result in the displacement of an electron, endowing it with kinetic energy, which is referred to as the photoelectric…

  • Photoconductive material

    In the realm of material conductivity, there exists a fascinating type known as a photosensitive conductor. What sets this conductor apart is its unique characteristic of having its conductance influenced by the quantity of incident light. In simpler terms, the conductivity of this material varies in response to the amount of light it receives.  

  • Photocathode

    In the realm of light-sensitive devices, there exists a remarkable photosensitive surface that, when subjected to the presence of light or radiation, releases electrons. This innovative technology finds its application in television camera tubes and various other devices that rely on light sensitivity.  

  • Permanent magnet

    A solid object made of robust steel, alnico, or alternative magnetic materials, possessing a powerful magnetization that endures indefinitely, preserving its magnetic properties over time.  

  • Percent depth dose

    The radiation dose administered at a specific tissue depth, expressed as a percentage of the dose delivered to the skin or the dose measured in the air.  

  • P electron

    A subatomic particle known as an electron, orbiting within the P shell, designated as the sixth electron shell encircling the atomic nucleus, as we count outward from the nucleus.  

  • Peak value

    The pinnacle magnitude of current, voltage, or power attained within the specified time interval. In the case of a sinusoidal waveform, it is equivalent to 1.41 times the root mean square value.