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X-ray specialists, atomic energy factory workers and radiotherapy doctors are usually examples of employees who are exposed, daily, to small quantities of radiation at work. The technology of calculating radiation exposure in individual tissue or even non-living objects is known as Dosimetry.

Radiation obtained through contact with X-rays, Alpha as well as Beta particles or Gamma rays, could be calculated utilizing a radiation detector. Two typical types of detectors would be the radiation dosimeter and a Geiger counter, each having different functions.

Calculating growing amounts of radiation accumulated during a period of time, the dosimeter signals the danger of too much exposure. Because higher amounts of radiation are absorbed, a color strip changes color on the popular dosimeter logo.

Much more sophisticated versions include the quartz fiber and thermoluminescent dosimeters, which have a greater range of measurement and precision. An electrically charged gas is actually included inside the quartz fiber sensor. A needle moves as radiation ionizes the gas and results in the charge to dissipate. The very included inside the thermoluminescent dosimeter displays measurable levels of noticeable light, which change as it is bathed within radiation.

Rather than tracking small amounts of radiation that are gradually absorbed over time, the basic Geiger counter calculates the amount of radioactivity at a single moment, but also runs on the charged gas to identify ionized particles.

New risks have emerged resulting in the average person to buy these devices as well. An increase in sales of Dosimeters as well as Geiger counters happened because of the escape of radioactive gases during a nuclear reactor turmoil in Japan.