Open AccessSTUDY ON THE EFFECT OF NATURAL BACKGROUND FOR GAMMA SPECTROMETER SYSTEM
Author(s) -
Trung Quang Tran,
Tạo Văn Châu,
Tam Duc Hoang,
Yen Thi Hong Vo
Publication year - 2011
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v14i4.2032
Subject(s) - electromagnetic shielding , radionuclide , spectrometer , gamma ray spectrometer , natural radioactivity , background radiation , environmental radioactivity , environmental science , nuclear physics , radiochemistry , radiation , mass spectrometry , gamma ray , physics , chemistry , optics , quantum mechanics
In the analysis of environmental radioactive isotopes using gamma spectrometry, natural background radiation is an important parameter related to the analytical results directly. Therefore, in this work, the influence of natural background radiation was studied for two models: with and without shielding of gamma spectrometer system. The initial results showed that the minimum detectable activity (MDA) of radionuclides such as 234Th, 226Ra, 212Pb, 208Tl, 40K, 214Pb, 214Bi, 228Ac have the difference of two models from 10% to 503%. This is the basis for researches to improve the lead shielding chamber in the future.