What gas-filled counter has the worst resolving t?

The gas-filled counter with the worst resolving time is typically the ionization chamber. Unlike other detectors, such as Geiger-Müller counters or proportional counters, ionization chambers operate at much lower voltages and rely on the collection of charge from ionization events. This results in a slower response to incoming radiation, leading to longer resolving times compared to other types of gas-filled detectors. Their design prioritizes measuring high levels of radiation rather than fast timing, making them less suitable for applications requiring precise timing measurements.