RADIAC instruments that operate on the ionization principle are categorized based on what?

RADIAC instruments that operate on the ionization principle are categorized based on operating voltages. This classification is important because the voltage applied within the ionization chamber affects the capability of the instrument to detect and measure ionizing radiation. Variations in the operating voltage influence factors such as the ability to produce a measurable current in response to the radiation and the sensitivity of the instrument to different levels of radiation exposure. Moreover, appropriate voltage levels need to be maintained for optimal performance, allowing the instrument to function effectively across its designed detection range.

While measurement accuracy, detection range, and type of radiation are important characteristics of RADIAC instruments, they are generally considered secondary to the primary categorization based on operating voltage. Different instruments may have the same voltage characteristics but can vary in their accuracy, the range of radiation they can detect, or the types of radiation they are designed to measure. Therefore, focusing on operating voltages allows for a specific understanding of how these instruments are designed and how they function regarding ionization.