HPS N13.41-2011 PDF Download

The ANSI/HPS N13.41-2011 standard provides criteria for the use of multiple dosimeters for monitoring external radiation exposure. The decision to use multiple dosimeters instead of a single dosimeter is left to radiation protection professionals' judgment. This standard applies to routine occupational activities in various settings, including medical, research, commercial, weapons disposition, fuel processing, and power reactor facilities.

The standard includes criteria for selecting dosimeter types, placing dosimeters on the body, interpreting multiple dosimeter results, and recording dose information. Compliance with this standard requires meeting its requirements, but not necessarily its recommendations. However, it does not address cases of internal deposition of radioactive materials, external contamination of the body, or working conditions that do not allow for job pre-planning. It also does not cover sudden or unexpected changes in the radiation environment that may occur during accidents.

The standard does not address fetal monitoring, as it is a specialized case related to estimating the dose to a separate entity, the fetus, and demonstrating an appropriate rate of dose accumulation during gestation. Skin exposures where the irradiated area is less than 10 cm² are also not addressed.

It is assumed in this standard that dosimeter assemblies used for multiple dosimetry purposes are calibrated and processed to provide an estimate of equivalent dose. However, specific guidance on dosimeter processing methodologies, calibrations, and performance criteria are only included by reference.

It is important to note that the recommendations of this standard do not override specific regulations or license requirements.