What Do They Measure Radiation In
They are sometimes called laser thermometers as a laser is used to help aim the thermometer or non contact thermometers or temperature guns to describe the devices ability to measure temperature from a distance.
What do they measure radiation in. A device such as a geiger counter can be used to survey people to determine the body location of radioactive particles. In general devices detect contamination measure dose or do both. That is why heated metal can glow red or even white. As they get hotter they emit more infrared and even start to emit visible light.
A device called a dosimeter can measure the absorbed dose of radiation but only if it was exposed to the same radiation event as the affected person. If emergency workers had not been evacuated shortly afterward they would have gotten their yearly occupational dosage in just over 6 hours. Rem roentgen equivalent man a unit of equivalent absorbed dose of radiation which takes into account the relative biological effectiveness of different forms of ionizing radiation or the varying ways in which they transfer their energy to human tissue. Many radiation monitors measure exposure.
A bsorbed dose describes the amount of radiation absorbed by an object or person that is the amount of energy that radioactive sources deposit in materials through which they pass. Each measure describes a different aspect of radiation and each has its own unit. Infrared thermometers detect and measure this radiation. The units for exposure are the roentgen r and coulombkilogram ckg.
An infrared thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black body radiation emitted by the object being measured. Scientists measure radiation in different ways. Some units used in measuring ionizing radiation and radiation dose. As they move the molecules emit infrared radiation a type of electromagnetic radiation below the visible spectrum of light.
A more sophisticated measure of radiation exposure. Sometimes they measure the dose that a person receives from a radioactive source and sometimes they measure the amount of radioactivity in water or in soil or in the air.