In arid regions, the tritium concentration in groundwater is typically very low and often falls below minimum detectable activity (MDA) of conventional liquid scintillation counter (LSC). Therefore, to measure concentration, it necessary lower detection limit so that can detect it. present study, several methods are discussed which effective at lowering tritium. One these enrich by ten- fortyfo...

Comparison of ion-molecular reactions of free-phenyl cations generated by tritium β -decay with 2-methyl- and 2-phenylquinolines has been investigated. The reaction of direct nitrogen atom phenylation with the help of nucleogenic phenyl cations has been fulfilled for the first time and a new one-step synthesis of tritium-labeled N-phenyl-2-phenylquinolinium salt-lipophilic radioactive biologica...

Tritium has been the isotope of choice for measurements neutrino mass and planned detection relic background. The low $^{3}$H leads to large recoil energy nucleus. This emerged as a limiting factor both measurements. We investigate $^{241}$Pu an alternative. is 80x smaller it similar decay lifetime $^{3}$H. evaluate first time its soft-neutrino capture cross-section find $(\sigma v)_{\nu} = 1.5...

Abstract Atomistic simulations with machine-learned potential energy functions are employed for understanding the mechanisms driving sputtering of beryllium by low-energy deuterium and tritium atoms details their retention on pristine surfaces. The interaction between hydrogen/deuterium/tritium surfaces regarding erosion yields is investigated molecular dynamics simulations. both hydrogen isoto...

Compounds labeled with Cl4 and N16 have proved useful in studies of nucleic acid metabolism. Since tritium, the radioactive hydrogen isotope of atomic weight 3, is now available in relatively high specific activities, it was decided to explore the usefulness of this isotope in such studies. Inasmuch as there are no data concerning the corresponding use of deuterium, it was first considered nece...

This article presents infrared absorption data of amorphous silicon alloys in which the hydrogen isotopes deuterium and tritium have been substituted for hydrogen. Silicon–deuterium and silicon– tritium vibration frequencies are related to silicon–hydrogen vibration frequencies by simple mass relationships. The silicon–deuterium wagging vibration is broadened and blueshifted due to strong coupl...

The growth of Rickettsia mooseri was accelerated and quantitatively increased in embryonate eggs containing tritium oxide at levels of 180, 90, and 45 mc./egg during the growth period. The eggs of a group containing 22.5 mc./egg showed only a slight increase in the rate of growth of organisms; the infections in the eggs of a group given 11.2 mc./egg did not differ significantly from those of th...