What is the term for the allowable radiation dose that is assumed to result in an average nominal lifetime risk?

The term that refers to the allowable radiation dose assumed to result in an average nominal lifetime risk is known as equivalent dose limits. This term is used to quantify the biological effects of different types of radiation on human tissues and is expressed in sieverts (Sv). Equivalent dose takes into account both the absorbed dose and the biological effectiveness of the radiation type, thus providing a more comprehensive measure of risk.

Effective dose limits, while related, focus on the overall risk of exposure across different tissues rather than just the absorbed or equivalent dose in a specific tissue type. Radiation tolerance levels pertain to the maximum amount of radiation that specific tissues can tolerate before cell or tissue function impairment occurs. Sensitivity dose limits are not a recognized term in radiation protection and do not have a specific definition related to dosimetry or risk assessment.

Understanding equivalent dose limits is crucial for ensuring that radiation exposure remains within safe boundaries, hence helping to minimize the potential long-term risks associated with radiation.