Title: Describe the functions of personal and area radiation dosimetry devices used in medical imaging.
Course: Radiologic Technology II (14105-II) > Section: Applying Radiation-Protection Procedures

Definition

Description should include

- film badge dosimeter—consists of two pieces of film that darken as badge is exposed to ionizing radiation
- pocket dosimeter—uses an air chamber to provide an immediate readout of radiation exposure but no long-term record
- thermoluminescent dosimeter—stores absorbed radiation energy in thermoluminescent chips that give off visible, measurable light when heated
- optically stimulated luminescence (OSL) badge—measures radiation that passes through a thin strip of aluminum oxide using a laser light
- ring dosimeter—contains a radiation-sensitive lithium fluoride crystal that gives off visible, measurable light when heated
- ionization chamber-type meter (Cutie Pie) and Geiger-Müller counter—field survey instruments used to measure radiation in the air.

Process/Skill Questions:

- What is the purpose of dosimeters?
- Who should wear dosimeters?
- How does a thermoluminescent dosimeter (TLD) work?