A gas-filled X-ray detector
in which the electric potential
is high enough for the gain to reach a value in the range from
Each electron produced by the initial photo-ionization
causes one avalanche. Since the number of avalanche events is proportional to the
energy of the incident photons, the charge collected by the anode
is proportional to the X-ray photon energy.
PAC, 1995, 67, 1745
(Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection
of radiation (IUPAC Recommendations 1995))
on page 1754
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook