Continuous Discharge Region:

In the continuous discharge region (Region VI), a steady discharge current flows.

The applied voltage is so high which, once ionization takes place within the gas, there is a permanent discharge of electricity, so which the detector cannot be used for radiation detection.

Radiation detectors are generally designed to respond to a certain category of radiation. Because the detector response could be sensitive to both energy and intensity of the radiation, every category of detector has described operating limits based on the features of the radiation to be measured. A huge variety of detectors are in use in DOE facilities to detect alpha and beta particles, neutrons, or gamma rays.  A few categories of detectors are capable of distinguishing among the categories of radiation; others are not. A few detectors only count the number of particles which enter the detector, although others are used to determine both the number and energy of the incident particles. Most detectors used in DOE facilities have one thing in general: they respond only to electrons generates in the detector.  In sequence to detect the various categories of incident particles, the particle's energy must be converted to electrons in the detector.

Gas-filled detectors are used, for the most part, to measure alpha and beta particles, neutrons, and gamma rays. The detectors operate in the ionization, proportional, and G-M regions along with an arrangement most sensitive to the categories of radiation being measured. A Neutron detector utilizes ionization chambers or proportional counters of appropriate design. Compensated ion chambers, fission counters, BF3 counters, and proton recoil counters are instances of neutron detectors.