Texas Industrial Radiography Gamma Practice Test

What can cause a dosimeter to give a "high" reading?

1. Being exposed to high levels of radiation

2. Being dropped or struck by a hard object

3. Leaking charge due to dirt or damage

4. All of the above

The correct answer is: All of the above

A dosimeter is a device that measures an individual's exposure to ionizing radiation over time. A high reading on a dosimeter can result from several factors, each contributing to the measurement of radiation exposure in different ways. When exposed to high levels of radiation, the dosimeter accumulates more energy from the radiation, leading to a higher reading. This scenario is common in environments where industrial radiography or other forms of radiation work are being performed. The dosimeter is designed to accurately capture and reflect the levels of radiation in those situations. Dropping or striking the dosimeter can also cause it to register a high reading. Physical impacts might damage the sensitive components inside the dosimeter, leading to malfunctions that can misrepresent the actual radiation exposure. Such damage may cause the dosimeter to malfunction, thus displaying an inaccurate reading that registers as "high." Additionally, if a dosimeter has dirt or damage on its surface, it may experience leaking charge. This can affect the ability of the device to function correctly, potentially resulting in an elevated reading. Contaminants or physical impairments can interfere with the internal mechanisms, leading to erroneous exposure readings. In summary, a dosimeter might record a high reading because of actual radiation exposure, physical damage from impact,