| タイトル | Statistical fitting accuracy in photon correlation spectroscopy |
| 著者（英） | Briggs, Matthew E.; Gammon, Robert W.; Shaumeyer, J. N. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-07-20 |
| 言語 | eng |
| 内容記述 | Continuing our experimental investigation of the fitting accuracy associated with photon correlation spectroscopy, we collect 150 correlograms of light scattered at 90 deg from a thermostated sample of 91-nm-diameter, polystyrene latex spheres in water. The correlograms are taken with two correlators: one with linearly spaced channels and one with geometrically spaced channels. Decay rates are extracted from the single-exponential correlograms with both nonlinear least-squares fits and second-order cumulant fits. We make several statistical comparisons between the two fitting techniques and verify an earlier result that there is no sample-time dependence in the decay rate errors. We find, however, that the two fitting techniques give decay rates that differ by 1 percent. |
| NASA分類 | OPTICS |
| レポートNO | 93A52414 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/314560 |
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