کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1826285 1027378 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An isobar separation method with Q3D magnetic spectrometer for AMS
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
An isobar separation method with Q3D magnetic spectrometer for AMS
چکیده انگلیسی

Isobar interference is the main obstacle for AMS measurement, especially in the case of very strong isobaric interference, such as in the measurement of 32Si, 53Mn, 60Fe, 63Ni, etc. An isobar separation method with Q3D magnetic spectrometer was developed aiming at AMS measurements for the above-mentioned nuclides. Based on a method of (ΔE-Q3D) the isobaric events can be largely rejected from the region of the nuclide of interest on the focal plane of a Q3D magnetic spectrometer. As a result, the isobaric interference can be reduced by more than three orders of magnitude. Further reduction of isobaric interference can be achieved by the use of a multi-anode ionization chamber placed at the position of collecting the nuclide of interest. The performance of the ΔE-Q3D system for isobar separation was tested by the above-mentioned nuclides with atomic numbers from 14 to 42. The results showed that ΔE-Q3D method has strong capability for separating isobars, as detailed in this paper.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 622, Issue 3, 21 October 2010, Pages 536–541
نویسندگان
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