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A scintillation counter is an instrument for detecting and measuring ionizing radiation by using the excitation effect of incident radiation on a scintillating material, and detecting the resultant light pulses.
Alpha scintillation probe under calibration. The most commonly used hand-held survey meters are the scintillation counter, which is used in the measurement of alpha, beta and neutron particles; the Geiger counter, widely used for the measurement of alpha, beta and gamma levels; and the ion chamber, which is used for beta, gamma and X-ray measurements.
A Geiger counter (/ ˈ ɡ aɪ ɡ ər /, GY-gər; [1] also known as a Geiger–Müller counter or G-M counter) is an electronic instrument used for detecting and measuring ionizing radiation. It is widely used in applications such as radiation dosimetry , radiological protection , experimental physics and the nuclear industry .
Built by Plessey Controls, the Portable Dose Rate Meter (PDRM) 82 began to be issued in 1982 for civil defence, mainly the Royal Observer corps, with rollout completed in 1985. The model is lightweight and water resistant, with an LCD display and a plastic case, along with miniature Geiger tube (shielded against beta particles ), on a single ...
Summary of particle detector types. Many of the detectors invented and used so far are ionization detectors (of which gaseous ionization detectors and semiconductor detectors are most typical) and scintillation detectors; but other, completely different principles have also been applied, like Čerenkov light and transition radiation.
A Lucas cell is a type of scintillation counter. [1] It is used to acquire a gas sample, filter out the radioactive particulates through a special filter and then count the radioactive decay. The inside of the gas chamber is coated with ZnS ( Ag ) - a chemical that emits light when struck by alpha particles .
A well counter is a device used for measuring radioactivity in small samples. It usually employs a sodium iodide crystal detector . It was invented in 1951 by Hal Anger , who is also well known for inventing the scintillation camera . [ 1 ]
A gamma probe is a handheld device containing a scintillation counter for intraoperative use following injection of a radionuclide to locate sentinel lymph nodes by their radioactivity. [1] It is used primarily for sentinel lymph node mapping and parathyroid surgery.