Interaction of tritium atoms with solid composite targets: Amino acids under adsorbed cetylamine layersстатья
Информация о цитировании статьи получена из
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Авторы:
Chernysheva M.G. ,
Tyasto Z.A. ,
Badun G.A.
Журнал:
Radiochemistry
Том:
51
Номер:
3
Год издания:
2009
Издательство:
Pleiades Publishing, Inc.
Местоположение издательства:
New York, USA
Первая страница:
308
Последняя страница:
312
DOI:
10.1134/S1066362209030175
Аннотация:
The capability of atomic tritium to penetrate deep into anhydrous targets of complex composition was examined. Amino acids coated with cetylamine were used as targets. With an increase in the cetylamine layer thickness, the yield of labeled amino acids drastically decreased, whereas the yield of labeled by-products increased. Measurements of the radioactivity of the amino acids allowed evaluation of the capability of cetylamine layers to transmit tritium atoms, which was characterized by gravimetric attenuation coefficients. The attenuation coefficient depends on particular amino acid used as indicator and on the cetylamine layer thickness. The most accurate values of the attenuation factors were obtained from the radioactivity of all the reaction products, taking into account the nonuniformity of cetylamine application onto the target. A decrease in the attenuation coefficient in thick cetylamine coatings was attributed to the open-work (porous) structure of these layers. © 2009 Pleiades Publishing, Ltd.
Добавил в систему:
Бадун Геннадий Александрович