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SANS measurement was carried out at the NG7 at the NIST Center for Neutron Research of the National Institute of Standards and Technology. Incident neutron wavelength of 6 Å , with varying sample-to-detector distance of 1, 15 and 4.5 m detector 25 mm offset yields a scattering range of 0.0009 Å-1< Q < 0.4 Å-1, where q =4π/ λsin(θ/2) is the magnitude of momentum transfer vector, and q is the scattering angle. After corrected for background and detector efficiency, and converted to an absolute scale using direct beamintensity, the 2D intensitywas circularly averaged to yield the total structure factor, S(q) [42]. |
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2楼2011-07-12 10:49:52
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8楼2011-07-12 17:06:37
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【答案】应助回帖
夏露相随(金币+30, 翻译EPI+1): 满意，真是太感谢了 2011-07-12 17:46:41
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SANS measurement was carried out at the NG7 at the NIST Center for Neutron Research of the National Institute of Standards and Technology. 小角中子散射测量在美国国家标准和技术研究院中子研究中心的NG7进行。Incident neutron wavelength of 6 Å , with varying sample-to-detector distance of 1, 15 and 4.5 m detector 25 mm offset yields a scattering range of 0.0009 Å-1< Q < 0.4 Å-1, whereq =4π/ λsin(θ/2) is the magnitude of momentum transfer vector,and q is the scattering angle. 入射中子波长为6 Å，样品-检测器距为1, 15 and 4.5 m，检测器补偿为25mm时，得到散射范围为0.0009 Å-1< Q < 0.4 Å-1，其中Q=4π/ λsin(θ/2)为动量转移矢量的大小，θ为散射角。After corrected for background and detector efficiency, and converted to an absolute scale using direct beamintensity, the 2D intensity was circularly averaged to yield the total structure factor, S(q) [42]. 在对背景和检测器效率进行校正后，二维强度以直接光束亮度转化为绝对标度，循环平均得到整体结构因子S(q)。 原文有点乱，楼主结合专业背景准确理解吧 |
10楼2011-07-12 17:37:21
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