Last updated : 27/Jan/2006
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Calibration (fit sdd4 outw)

The histograms corrected by the parameters (ev2ch and intercept) are fitted by 8 Gaussians and a quadratic background. One bin of the histograms is packed 12 eV. At the conversion from ch to eV, ch was transformed into a real number by adding a uniform random number (-0.5 to 0.5).

“ all ” means the correction by the fit value of all summed up histograms (red line of ev2ch figures).
“ part ” means the run part by run part correction.
“ part not5 ” means the run part by run part correction except for run part 5 because of low statistics.

“ Ti mean ” means Ti Kα1 mean fitting. The fit value is only Ti Kα1 mean, and other X-ray means are calculated from it.

Fit results of sdd4 outw (Ti mean fitting).

Hist Ti Kα1 Mean [eV] Ti Kα1 Sigma [eV] χ² / ndf
all 4509.1±0.2 65.88±0.28 2.02
part 4509.1±0.2 65.80±0.28 1.86
part not5 4509.1±0.2 65.83±0.28 1.85


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Figure 1: .

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Figure 5: .

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Figure 6: .

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Figure 7: .

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Figure 8: .

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Figure 9: .