What is used to detect all Alpha, Beta, and majority Gamma radiation in an Electret Ion Chamber?

The correct answer involves understanding the function of the tools used in an Electret Ion Chamber. This type of air-filled ionization chamber is designed to accurately measure ionizing radiation levels, primarily focusing on alpha and beta particles as well as gamma radiation.

In this system, a voltage meter is essential as it measures the voltage generated by the ionization process that occurs when radiation interacts with the air in the chamber. When radiation enters the chamber, it ionizes the air molecules, creating positive ions and electrons. These ions are attracted to the oppositely charged plates in the chamber, creating a current that can be measured. The change in the voltage is indicative of the radiation levels present, allowing for an understanding of the ambient radiation environment.

By measuring this voltage change, the meter provides a quantitative assessment of the radiation exposure, thus enabling the detection of alpha, beta, and the majority of gamma radiation present in the environment. This functionality makes the voltage meter a critical component for effective radiation detection in this setup.