| タイトル | Laser-induced fluorescence detection strategies for sodium atoms and compounds in high-pressure combustors |
| 著者（英） | Weiland, Karen J. R.; Wise, Michael L.; Smith, Gregory P. |
| 著者所属（英） | NASA Lewis Research Center |
| 発行日 | 1993-07-20 |
| 言語 | eng |
| 内容記述 | A variety of laser-induced fluorescence schemes were examined experimentally in atmospheric pressure flames to determine their use for sodium atom and salt detection in high-pressure, optically thick environments. Collisional energy transfer plays a large role in fluorescence detection. Optimum sensitivity, at the parts in 10 exp 9 level for a single laser pulse, was obtained with the excitation of the 4p-3s transition at 330 nm and the detection of the 3d-3p fluorescence at 818 nm. Fluorescence loss processes, such as ionization and amplified spontaneous emission, were examined. A new laser-induced atomization/laser-induced fluorescence detection technique was demonstrated for NaOH and NaCl. A 248-nm excimer laser photodissociates the salt molecules present in the seeded flames prior to atom detection by laser-induced fluorescence. |
| NASA分類 | INORGANIC AND PHYSICAL CHEMISTRY |
| レポートNO | 93A52423 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/314558 |
|
