What is the maximum permissible dose of radiation for a radiologic technologist per year?

The maximum permissible dose of radiation for a radiologic technologist per year is set at 50 mSv. This limit is established to ensure the safety and health of professionals working in environments where they may be exposed to ionizing radiation. The rationale behind this threshold takes into account the cumulative effects of radiation exposure and the potential risks associated with long-term exposure.

Regulatory guidelines, such as those from the National Council on Radiation Protection & Measurements (NCRP) and the International Commission on Radiological Protection (ICRP), have determined that 50 mSv is a level that allows radiologists and technologists to perform their duties while minimizing the risk of radiation-induced health problems. This limit is designed to protect the occupational workforce while recognizing the necessity of exposure in clinical and diagnostic settings.

In contrast, the other choices represent doses that are lower than the established maximum, and while they may be relevant for specific situations (for example, for general public exposure or for specific types of workers), they do not reflect the standard permissible dose specific to radiologic technologists. The 20 mSv limit, for instance, is often used for annual exposure limits for those who are not occupationally exposed to radiation on a regular basis.