| Autor: |
Davis, J.M., Chase, R.C., Silk, J.K., Krieger, A.S. |
| Zdroj: |
Nuclear Instruments and Methods in Physics Research; March 1984, Vol. 221 Issue: 1 p20-25, 6p |
| Abstrakt: |
X-ray astronomy, both solar and celestial, has many needs for high spatial resolution observations which have to be performed with electronic detectors. If the resolution is not to be detector limited, plate scales in excess of 25μm arc sec−1, corresponding to focal lengths than 5 m, are required. In situations where the physical size is restricted, the problem can be solved by the use of grazing incidence relay optics. We have developed a system which employs externally polished hyperboloid-hyperboloid surfaces to be used in conjuction with a Wolter-Schwarzchild primary. The secondary is located in front of the primary focus and provides a magnification of 4, while the system has a plate scale of 28 μm arc sec−1and a length of 1.9 m. The design, tolerance spefication, fabrication and performance at visible and X-ray wavelengths of the optical system are described. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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