| タイトル | Second Flight of the Zeno Experiment on USMP-3 |
| 著者（英） | Briggs, Matthew E.; Wilkinson, R. Allen; Gent, David; Gammon, Robert W.; Boukari, Hacene; Shaumeyer, J. N. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1998-11-01 |
| 言語 | eng |
| 内容記述 | The second flight of the Zeno experiment in the USMP-3 flight has shown successful control of density perturbations near the window surfaces. These density changes were demonstrated to be arising from the rate of temperature change in the sample cell during the flight. These effects could be controlled by using decreasing ramp rates as Tc was approached. The cell window interference was carefully recorded to provide data about the phase of the interference close to the critical point and the effective window reflectivity. Correlograms were recorded from 500 mili K down to 2 mili K at 24 temperatures, 383 correlograms in all. The efforts to get closer were prevented by a long (greater than two week time constant) decay of a 1.3% density error caused by local heating from the 17 micro W laser beam. The phase boundary was located with unprecedented precision of +/- 2O micro K. The complete experiment sequence was done with ground commanding and uploaded script files, bypassing the original autonomous-mode program sequence. |
| NASA分類 | Inorganic and Physical Chemistry |
| 権利 | No Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/540510 |
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