タイトル | Density Measurements in Air by Optically Exciting the Cordes Bands of I2 |
著者(英) | Balla, R. Jeffrey; Exton, Reginald J. |
著者所属(英) | NASA Langley Research Center |
発行日 | 2000-01-01 2000 |
言語 | eng |
内容記述 | We describe an optical method based on laser-induced fluorescence for obtaining instantaneous measurements of density along a line in low-density air seeded with I2. The Cordes bands of I2 (D(sup 1)sigma(sup +, sub u)) left arrow X(sup 1)sigma(sup +, sub g)) are excited with a tunable ArF excimer laser. air densities in the range (0.1-6.5) x 10(exp 17) cm(exp -3) are measured over 295-583 K using the density-dependent emission ratio of two emission bands of I2; the 340 nm bands and the diffuse-structured McLennan bands near 320 nm. |
NASA分類 | Geophysics |
権利 | Copyright |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/341078 |