Physical design of high mass resolution spectrometer for ISOL

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作者：
China Institute of Atomic Energy, P.O. Box 275-62, Beijing 102413, China [1 ]
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来源：
Yuanzineng Kexue Jishu | 2006年 / 2卷 / 133-138期
关键词：
Acceleration - Design - Dispersion (waves) - Ion beams - Isotopes - Optical resolving power - Radioactivity - Separators;
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摘要：
High mass resolution spectrometer for isotope separator on line (ISOL) in Beijing radioactive ion-beam facilities (BRIF) project requires mass resolving power of 20000. A bi-energy system with big and small dipoles is used to reduce energy dispersion which is too large to get mass resolving power. When the width of beam with a Gaussian distribution is 0.06 mm and 10 mrad, resolving power of this spectrometer is 33400. After consideration of 0.002% energy spread introduced by acceleration, the final resolving power of this spectrometer reaches 20000.
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