FIELD: chemistry.
SUBSTANCE: vacuum chamber with a sample of pyrolytic graphite in it is degassed, vapours containing alkali metal atoms are fed to the chamber, and the sample is held at high temperature. Then the pyrolytic graphite sample with absorbed alkali metal atoms is exposed to neutron flow radiation in another container, thus converting alkali metal atoms into gamma-irradiating isotopes, and alkali metal atom quantity is further defined by gamma-ray spectrometry.
EFFECT: increased sensitivity and accelerated detection process for small quantities of alkali metal atoms.
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