[Effect of the structure of the cell nucleus chromatin on absorption of low-energy beta-radiation emitted from an incorporated source].
To study the energy absorption in cell nuclei the analysis was made of the level of registration of beta-particles, emitted by the incorporated tritium, using a liquid scintillation counter. It was shown that the treatment, modifying the chromatin structure, changed the number of beta-particles registered. The pattern of the spectral changes indicated that the effect observed was not the result of the quenching processes. The effect was absent when the source of a higher energy (14C) was used. The authors submit the conceptions concerning the mechanisms of the phenomenon observed which are confirmed by the theoretical studies.
D000818:Animals; D002478:Cells, Cultured; D002843:Chromatin / Q000032:analysis / Q000528:radiation effects*; D006224:Cricetinae; D003412:Cricetulus; D003470:Culture Media; D004583:Electrons; D004735:Energy Transfer; D009994:Osmolar Concentration
D002843:Chromatin; D003470:Culture Media
Vliianie struktury khromatina iadra kletki na pogloshchenie beta-izlucheniia nizkikh énergiĭ ot inkorporirovannogo istochnika.