| タイトル | Soft X-ray images of the solar corona using normal incidence optics |
| 著者（英） | Brown, W. A.; Acton, L. W.; Bruner, M. E.; Underwood, J. H.; Haisch, B. M. |
| 著者所属（英） | Lockheed Missiles and Space Co.|California Univ. |
| 発行日 | 1988-03-01 |
| 言語 | eng |
| 内容記述 | A solar coronal loop system has been photographed in soft X-rays using a normal incidence telescope based on multilayer mirror technology. The telescope consisted of a spherical objective mirror of 4 cm aperture and 1 m focal length, a film cassette, and a focal plane shutter. A metallized thin plastic film filter was used to exclude visible light. The objective mirror was covered with a multilayer coating consisting of alternating layers of tungsten and carbon whose combined thicknesses satisfied the Bragg diffraction condition for 44 A radiation. The image was recorded during a rocket flight on October 25, 1985 and was dominated by emission lines arising from the Si XII spectrum. The rocket also carried a high resolution soft X-ray spectrograph that confirmed the presence of Si XII line radiation in the source. This image represents the first successful use of multilayer technology for astrophysical observations. |
| NASA分類 | SOLAR PHYSICS |
| レポートNO | 90A14196 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/359810 |
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