Several professions bring working people into contact with radioactive material every day, for instance: X-ray specialists, atomic energy plant employees and physicians using radiotherapy. Dosimetry is the measurement of the dosage of radiation absorbed by an individual or even materials.

Radiation detector are the products that calculate these types of doses, from sources for example X-rays, Alpha as well as Experiment with contaminants and Gamma sun rays. A Geiger counter as well as radiation dosimeter are two regular products that have different methods of detecting radiation.

Calculating increasing levels of radiation gathered during a period of time, the dosimeter signals the risk of too much exposure. A common version is the dosimeter badge with a strip which changes colour to indicate higher doses.

Much more advanced variations are the quartz fiber and thermoluminescent dosimeters, that have a larger range of measurement as well as precision. The quartz fiber detector contains a gas keeping an electrical charge. As radiation ionizes the gas, the charge is reduced leading to a hook to increase. The thermoluminescent dosimeter steps the visible light that the warmed very emits, with radiation impacting the quantity of light released.

The Geiger counter additionally uses a gas to measure ionized particles within the surrounding atmosphere, however, it usually just picks up levels of radiation at a given second, rather than an accumulation over a period of time.

New risks possess emerged causing the average person to purchase these devices as well. The current reactor crisis in Japan, which leaked radioactive materials in to the atmosphere, caused an increase in purchases of Geiger counters as well as dosimeters.