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Fast production of large 23Na Bose-Einstein condensates in an optically plugged magnetic quadrupole trap
optically plugged magnetic quadrupole trap
2010/11/18
We demonstrate a fast production of large 23Na Bose-Einstein condensates in an optically plugged,magnetic quadrupole trap. A single global minimum of the trapping potential is generated by slightly di...
Crossover from commensurate to incommensurate antiferromagnetism in stoichiometric NaFeAs revealed by single-crystal 23Na,75As-NMR experiments
NaFeAs NMR incommensurate antiferromagnetism 111-type iron arsenide
2010/11/18
We report results of 23Na and 75As nuclear magnetic resonance (NMR) experiments on a
self-flux grown high-quality single crystal of stoichiometric NaFeAs. The NMR spectra revealed
a tetragonal to tw...
23Na磁共振成像的初步实验研究
磁共振成像 表面线圈 23Na LC谐振
2009/10/28
介绍了用于23Na磁共振成像实验的收发一体表面线圈的设计、制作原理与实际制作. 用制作的23Na表面线圈在Bruker Biospec 47/30磁共振成像仪上采集了不同浓度NaCl溶液，盐腌制鹌鹑蛋和大鼠头部的23Na密度像，为深入开展23Na磁共振成像的生物医学应用研究奠定基础.
Ba(n,x)134Cs,134Ba(n,2n)133Ba,140Ce(n,2n)139Ce,142Ce(n,2n)141)Ce和23Na(n,2n)22Na反应截面的测量
活化方法 反应截面 (n,x)(n,2n)反应
2009/7/9
用中子活化法相对于54Fe(n,P)54Mn反应,在13.50—14.80MeV中子能区测量了Ba(n,x)134Cs,134Ba(n,2n)133Ba,140Ce(n,2n)139Ce,142Ce(n,2n)141Ce和23Na(n,2n)22Na的反应截面.并将所测的结果和其他作者的结果进行了比较,中子能量是用90Zr(n,2n)89m+gZr反应和93Nb(n,2n)92mNb反应截面比法测...