This web page allows you to convert the different dosimetry units and answers the following questions in particular: What is dosimetry and what factors affect the types and units of dosimetry used? What are the different units of dosimetry and their origins? What are the descriptions and uses of the different dosimetry units, and how do they differ from each other? What are some reference values for the different units of dosimetry, and what do they represent? How can one convert the different units of dosimetry, and what tools or methods can be used to do so?
Dosimetry is the measurement of radiation dose. The types and units of dosimetry that are used depend on the type of radiation, the application and the exposure level, among other factors. This chapter will look at the different units of dosimetry and their origins, as well as their application and uses.
The main International System of Units (SI) unit of dosimetry is the gray (Gy), and this has been adopted in the United States since 1975. Other non-SI units, such as the rad, the rem (Roentgen equivalent man) and the centigray (cGy), are still widely in use today. The history of these units and their usage can be traced back to the early 20th century and before.
The gray is the SI unit used to express a measurement of the energy of radiation absorbed in a material. One gray is equal to one joule per kilogram. The rad is an older and now largely obsolete unit for measuring radiation dose. It is still sometimes used to describe the dose equivalent in the United States, defined as the amount of energy absorbed by one gram of material. The centigray is an older unit that is used to measure dose in smaller quantities. One centigray is equal to 0.01 gray. The milligray (mGy) is an even smaller unit, which is equal to one thousandth of one gray.
Below is a list of reference values for the different units of measurement of dosimetry. These are examples of the minimum radiation doses recorded for the respective unit.
There are many ways to convert the different units of dosimetry. One of the simplest ways is to use an online calculator or chart. The unit conversion calculators available online are often designed to be user-friendly and easy to use. These converters will automatically calculate the equivalent value in the desired unit. For example, if you enter a value in gray (Gy) into the converter, it will automatically calculate the equivalent value in rad, centigray (cGy), milligray (mGy), and other units.