proportional gas-scintillation counter

https://doi.org/10.1351/goldbook.P04887
A @P04885@ coupled to an @UT07492@ sensitive @P04626@. Initial electrons produced by the interaction of the high-energy photon with the counter fill-gas are accelerated by a high electric field where they acquire sufficient energy to excite the noble gas atoms. The resulting UV radiation is observed by a @P04626@.
Source:
PAC, 1995, 67, 1745. (Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection of radiation (IUPAC Recommendations 1995)) on page 1754 [Terms] [Paper]