| タイトル | Constant-dispersion grism spectrometer for channeled spectra |
| 著者（英） | Traub, Wesley A. |
| 著者所属（英） | Harvard-Smithsonian Center for Astrophysics |
| 発行日 | 1990-09-01 |
| 言語 | eng |
| 内容記述 | A new spectrometer design is presented in which the angular dispersion with respect to wave number is nearly constant. The spectrometer is a type of grism, a series combination of grating and prism, in which the constant parts of the dispersion terms add to one another but the slopes of the dispersions tend to cancel one another. A systematic method is presented for optimizing the grating and prism parameters. A cross-dispersion technique is presented, eliminating overlapping grating orders. A design example is given for the visible region from 0.45 to 0.80 micron with essentially constant wave-number dispersion and a peak transmission of approximately 95 percent. This grism is well suited for measuring channeled spectra as generated by an optical stellar interferometer. |
| NASA分類 | INSTRUMENTATION AND PHOTOGRAPHY |
| レポートNO | 90A48628 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/354079 |
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