What does the AN/UDR-13 measure specifically?

The AN/UDR-13 is a specialized portable radiation survey meter designed to measure specific types of radiation. It is capable of detecting gamma radiation dose rates as well as neutron and gamma radiation doses. This versatility is crucial for CBRN reconnaissance operations, where the ability to assess the presence of different types of radiation is necessary for safety and operational effectiveness.

The device’s capability to quantify both gamma and neutron levels allows operators to evaluate potential exposure risks in environments where both types of radiation could be present, such as after a nuclear event or in contaminated zones. In a practical setting, knowing the specific radiation levels helps inform decisions regarding personnel safety, evacuation procedures, and further actions in a contaminated area.

While the other options may hint at aspects of radiation detection, they do not reflect the specific functionality and versatility of the AN/UDR-13 as accurately. For instance, measuring only neutron levels or just high radiation sums would limit its application and effectiveness in providing a comprehensive assessment of the radiation environment.