Radiation Safety Practice Exam

What is the primary purpose of the ALARA principle?

1. To maximize occupational exposure

2. To reduce unnecessary exposure to radiation

3. To eliminate all radiation exposure

4. To standardize radiation dose limits

The correct answer is: To reduce unnecessary exposure to radiation

The primary purpose of the ALARA principle, which stands for "As Low As Reasonably Achievable," is to reduce unnecessary exposure to radiation. This principle is fundamental in radiation safety practices, particularly in occupational settings where workers may be subjected to radiation. It emphasizes that all exposures to radiation should be minimized to the lowest possible levels, taking into consideration economic and social factors. The ALARA principle does not aim to eliminate all radiation exposure, as some exposure is often necessary for medical procedures or specific occupational duties. Rather, it focuses on ensuring that such exposures are kept as low as practicable, thereby protecting workers and the public from potential harmful effects of radiation. By adhering to the ALARA principle, facilities and professionals strive to create a safer environment while maintaining the necessary functions that involve radiation. In addition, the principle does not seek to standardize radiation dose limits, as regulations and guidelines from various health organizations already exist to address dose limits for occupational and public exposure. Instead, ALARA serves as a guiding philosophy to continuously improve safety measures and minimize exposure risks within these established frameworks.