Radiation dosimeters

Definition

Radiation dosimeters are devices used to measure an individual's exposure to ionizing radiation over a specific period. They are essential for monitoring and ensuring safety in environments where radiation is present.

5 Must Know Facts For Your Next Test

1. There are different types of radiation dosimeters, including film badges, thermoluminescent dosimeters (TLDs), and electronic personal dosimeters.
2. Dosimeters measure exposure to ionizing radiation, which is critical for preventing harmful biological effects.
3. The readings from a dosimeter can help assess the risk of radiation-induced conditions such as cancer or acute radiation syndrome.
4. Dosimeters must be regularly calibrated to ensure accurate readings of radiation exposure levels.
5. In many occupations involving radiation, wearing a dosimeter is a regulatory requirement to monitor and limit occupational exposure.

Review Questions

• What are the main types of radiation dosimeters used for measuring exposure?
• Why is it important to calibrate dosimeters regularly?
• What biological risks can be mitigated by using a radiation dosimeter?

Related terms

Ionizing Radiation: Radiation with enough energy to remove tightly bound electrons from atoms, thus creating ions.

Thermoluminescent Dosimeter (TLD): A type of dosimeter that measures ionizing radiation exposure by measuring the intensity of visible light emitted from a crystal in the detector when heated.

Acute Radiation Syndrome (ARS): (Also known as radiation sickness) A serious illness that occurs when the entire body (or most of it) receives a high dose of radiation, usually over a short period.