What does ALARA stand for in radiation safety practices?

ALARA stands for "As Low As Reasonably Achievable." This principle is fundamental in radiation safety practices and emphasizes minimizing radiation exposure to individuals and the environment. The concept behind ALARA is that while some level of radiation exposure may be necessary for medical treatments, industrial applications, or scientific research, any exposure should be kept at the lowest possible levels that are achievable. This involves using appropriate engineering controls, administrative protocols, and personal protective equipment to reduce exposure without compromising the objectives of the work. ALARA encourages a proactive approach to radiation safety, where individuals actively seek ways to limit their exposure while still fulfilling their responsibilities.

The other choices do not accurately represent the ALARA principle: “As Long As Radiation Allows” suggests a more permissive attitude towards radiation exposure, while “As Low As Radiation Allows” does not capture the intent of reasonable measures being taken to reduce exposure. “As Low As Required by Authorities” implies compliance with minimum standards without the proactive effort to further reduce exposure that is inherent in the ALARA philosophy.