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tudoutouha

铁虫 (正式写手)

[求助] 求助EXAFS拟合,怎么用k0及k1拟合小原子序数的原子?

我有个审稿意见是这样的:In addition to the k2-weighted EXAFS fits, the authors should also consider attempting fits with k0 and k1 weighting to ensure that the features at R=1.75 Ang in Figure 8 are actually low atomic number scatterers (B or O) and not an artifact of the Fourier Transform.我做的是Ru催化剂,测的Ru K边。
有几个问题:1.请问这个应该怎么拟合?还是用原来在Athena中处理好的数据(用的k2加权)拟合,只是在artemis中拟合时选权重吗?还是需要在Athena中用k0及k1重新处理原始数据再拟合?
2.Artemis中拟合时选的权重必须与Athena中处理原始数据时选的权重一样吗?
3.用k0及k1拟合 low atomic number scatterers (B or O),预期结果应该是什么样的?与k2拟合的结果有什么区别?
谢谢!
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guoli852963

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2楼2013-11-26 13:17:54
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