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To address these problems, scientists have developed the following four major types of instruments to detect and identify radioactive materials and ionizing radiation: Personal Radiation Detector (PRD) Handheld Survey Meter. Radiation Isotope Identification Device (RIID) Radiation Portal Monitor (RPM)

Detector Types These are detectors based on gas ionization, scintillation detectors, and semiconductor detectors. Detectors based on gas ionization are the ionization chamber, proportional counter, and Geiger–Müller counter.

Before using the instrument for any contamination or personnel surveys you should check the battery level, and the counters response with a check source. The check source can be a calibrated standard, stock vial or any known activity radioactive source.

The Geiger-Mueller (GM) detector is a common portable instrument choice for a general laboratory radioactive material survey. GM detectors are capable of detecting alpha, beta, and gamma radiation.

When talking about radiation detection instruments, there are three types of detectors that are most commonly used, depending on the specific needs of the device. These are: Gas-Filled Detectors, Scintillators, and Solid State detectors.

There are four different but interrelated units for measuring radioactivity, exposure, absorbed dose, and dose equivalent.

Various methods and equipment are used to detect radiation, such as film badges, gas ionization apparatus, Geiger-Muller counters, radon detectors, personal radiation detectors, cloud chambers, and scintillation counters.

Detecting radiation is achieved through the use of a variety of instruments. The most common type of radiation detector is a Geiger-Mueller (GM) tube, also called a Geiger counter.