Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from...Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from the interfering ones. In order to solve this problem, we developed a method to simulate the experimental spectra of medium-heavy nuclides in AMS measurements. The results obtained from this method are in good agreement with experimental values.展开更多
A single and dual parameter data acquisition, ion beam measurements and control system for accelerator mass spectrometry is described. The system hardware has been constructed with the advantage of the lower cost and ...A single and dual parameter data acquisition, ion beam measurements and control system for accelerator mass spectrometry is described. The system hardware has been constructed with the advantage of the lower cost and higher reliability. It is provided with varieties of functions such as selecting acquisition mode carrying out the multiple display, analyzing data and especially viewing isometric spectrum at different directions. It can also be used for ordinary nuclear spectrum system.展开更多
SINCE 1990 a few papers presented by researchers at the Lawrence Livermore National Labora-tory(LLNL)have shown the great promise of accelerator mass spectrometry(AMS) inthe quantification of biological macromolecular...SINCE 1990 a few papers presented by researchers at the Lawrence Livermore National Labora-tory(LLNL)have shown the great promise of accelerator mass spectrometry(AMS) inthe quantification of biological macromolecular adducts resulting from exposure to the exotictrace chemicals or toxins. For instance, they first successfully detected a carcinogen, 2-amino-3,8-dimethyl-imidazo (4, 5-f) quinoxaline (MeIQx), covalently bound to DNA by AMS.展开更多
基金Supported by the National Natural Science Foundation of China (No.10175094) and the Science Foundation of Guangxi University (X022013)
文摘Some interferences are often encountered in accelerator mass spectrometry (AMS) measurements, espe-cially for medium-heavy nuclide measurement. It is difficult for online discrimination of the nuclide of interest from the interfering ones. In order to solve this problem, we developed a method to simulate the experimental spectra of medium-heavy nuclides in AMS measurements. The results obtained from this method are in good agreement with experimental values.
文摘A single and dual parameter data acquisition, ion beam measurements and control system for accelerator mass spectrometry is described. The system hardware has been constructed with the advantage of the lower cost and higher reliability. It is provided with varieties of functions such as selecting acquisition mode carrying out the multiple display, analyzing data and especially viewing isometric spectrum at different directions. It can also be used for ordinary nuclear spectrum system.
文摘SINCE 1990 a few papers presented by researchers at the Lawrence Livermore National Labora-tory(LLNL)have shown the great promise of accelerator mass spectrometry(AMS) inthe quantification of biological macromolecular adducts resulting from exposure to the exotictrace chemicals or toxins. For instance, they first successfully detected a carcinogen, 2-amino-3,8-dimethyl-imidazo (4, 5-f) quinoxaline (MeIQx), covalently bound to DNA by AMS.
