What type of electrical setup does an ionization chamber operate at?

The correct answer indicates that an ionization chamber operates at low voltage. Ionization chambers are used in radiation detection to measure ionizing radiation by collecting the ion pairs produced within a gas when it is subjected to radiation.

Operating at low voltage allows the chamber to effectively collect these ion pairs without causing significant secondary ionization or breakdown of the gas, which would occur at higher voltages. This is crucial for maintaining the accuracy and stability of the readings obtained from the ionization chamber, as high voltage could lead to increased noise and less reliable measurements.

In this context, low voltage is essential for ensuring that the detector accurately measures the amount of ionizing radiation present without interference from undesirable electrical effects that can arise in higher voltage settings. Thus, the operational characteristics of an ionization chamber necessitate low voltage to optimize its performance and reliability in radiation measurement applications.