Dose Equivalent

Dose equivalent is a quantity introduced to assess the radiation hazard of chronic exposure to ionizing radiation of arbitrary composition. It is equal to the product of the absorbed dose (measured in rem) by the average quality factor (denoted as W) of radiation at a given point on the body. The quality factor is a measure of the relative biological effectiveness of a particular type of radiation. It shows how much radiation of a given type causes the same biological effect as 1 rem of another radiation. The value of the quality factor depends on the type of fabric and can be different for different types of radiation.

For example, the quality factor for X-rays is about 1, and for gamma radiation it is about 20. This means that for the same absorbed dose, X-rays are less dangerous than gamma radiation.

The equivalent dose value is used to assess the risk of developing cancer and other radiation damage. It allows you to compare the dangers of different types of exposure and take measures to protect the population from radiation exposure.

Overall, the use of dose equivalent is an important tool for assessing the risks of radiation exposure and taking action to protect people and the environment from hazardous radiation exposure.

Dose equivalent is a quantity that is used within radiobiology to assess radiation hazards. It is an important measure of the risk of exposure to living organisms, and its calculation is important when working with hazardous materials such as radioactive isotopes.

The equivalent dose (sv) is determined as the product of absorbed (br) and absorbed focal energy (eq). According to the International System of Units, the measurement is based on megagrays (Sv = 1 Gy × μ2), so X-ray, gamma or beta therapy results are recorded in millisieverts (mSv), and nuclear medicine results are recorded in Sieverts (SiV). Also for this reason, it is common to take into account both characteristics, for example, radiological studies can be characterized by the total dose D and the average dose d.

Sv is defined primarily to measure human radiation exposure in medical research or industry. In fact, dose equivalent measures how much biological effect irradiation at a given dose rate will produce. The assessment of the equivalent dose for significant irradiation of the body is carried out separately. With minor exposure, we can talk about general exposure. The size of the estimated value is equal to the sum of twice the absorbed and volumetric doses. If a set of equipment with a large number of attachments is used