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  2. Positron emission tomography - Wikipedia

    en.wikipedia.org/wiki/Positron_emission_tomography

    Positron emission tomography (PET) [1] is a functional imaging technique that uses radioactive substances known as radiotracers to visualize and measure changes in metabolic processes, and in other physiological activities including blood flow, regional chemical composition, and absorption. Different tracers are used for various imaging ...

  3. Radiation detection - Wikipedia

    en.wikipedia.org/wiki/Radiation_detection

    Radiation detection. The following Radiological protection instruments can be used to detect and measure ionizing radiation: Ionization chambers. Gaseous ionization detectors. Geiger counters. Photodetectors. Scintillation counters. Semiconductor detectors. Categories:

  4. Nuclear medicine - Wikipedia

    en.wikipedia.org/wiki/Nuclear_medicine

    Nuclear medicine, or nucleology, [1] is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.Nuclear imaging is, in a sense, radiology done inside out, because it records radiation emitted from within the body rather than radiation that is transmitted through the body from external sources like X-ray generators.

  5. Polytetrafluoroethylene - Wikipedia

    en.wikipedia.org/wiki/Polytetrafluoroethylene

    Polytetrafluoroethylene. Polytetrafluoroethylene (PTFE) is a synthetic fluoropolymer of tetrafluoroethylene, and has numerous applications because it is chemically inert. The commonly known brand name of PTFE-based composition is Teflon by Chemours, [1] a spin-off from DuPont, which originally discovered the compound in 1938.

  6. Medical imaging - Wikipedia

    en.wikipedia.org/wiki/Medical_imaging

    Medical imaging is the technique and process of imaging the interior of a body for clinical analysis and medical intervention, as well as visual representation of the function of some organs or tissues (physiology). Medical imaging seeks to reveal internal structures hidden by the skin and bones, as well as to diagnose and treat disease.

  7. Particle detector - Wikipedia

    en.wikipedia.org/wiki/Particle_detector

    Particle detector. In experimental and applied particle physics, nuclear physics, and nuclear engineering, a particle detector, also known as a radiation detector, is a device used to detect, track, and/or identify ionizing particles, such as those produced by nuclear decay, cosmic radiation, or reactions in a particle accelerator.

  8. Tomography - Wikipedia

    en.wikipedia.org/wiki/Tomography

    Tomography is imaging by sections or sectioning that uses any kind of penetrating wave. The method is used in radiology, archaeology, biology, atmospheric science, geophysics, oceanography, plasma physics, materials science, cosmochemistry, astrophysics, quantum information, and other areas of science. The word tomography is derived from ...

  9. Single-photon emission computed tomography - Wikipedia

    en.wikipedia.org/wiki/Single-photon_emission...

    Collimator used to collimate gamma rays (red arrows) in a gamma camera. Single-photon emission computed tomography (SPECT, or less commonly, SPET) is a nuclear medicine tomographic imaging technique using gamma rays. [1] It is very similar to conventional nuclear medicine planar imaging using a gamma camera (that is, scintigraphy), [2] but is ...