کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5406914 | 1393194 | 2009 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energy efficient iron based electronic field cycling magnet
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
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چکیده انگلیسی
A new concept for an energy efficient electromagnet for fast field cycling NMR applications as well as its construction and first test results are presented. The magnet, which provides a rectangular sample space of 17Â ÃÂ 25Â mm, has an iron yoke and pole pieces optimised with respect to the B0 homogeneity. The maximum field is 0.66Â T at a current of 320Â A; its field inhomogeneity for a cylindrical sample (length 7Â mm, diameter 6Â mm) is about 50Â ppm. The power dissipation during polarisation at 0.55Â T is as low as 1.4Â kW. The magnet is powered by a commercially available power supply and can be rapidly switched with a slew rate of 0.55Â T/ms. The system has shown a stability of 50Â ppm/h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetic Resonance - Volume 198, Issue 2, June 2009, Pages 183-187
Journal: Journal of Magnetic Resonance - Volume 198, Issue 2, June 2009, Pages 183-187
نویسندگان
Dirk Plendl, Marian Fujara, Alexei F. Privalov, Franz Fujara,