Precision Optical Fabrication And Test Methods Applied To The SXT Grazing Incidence Mirror Assembly

C. G. Hull-Allen; R. Maeda; C. F. Comstock; C. M. Kennemore III; K. E. Tapp; A. F. Slomba; R. G. Kusha

doi:10.1117/12.962671

28 July 1989 Precision Optical Fabrication And Test Methods Applied To The SXT Grazing Incidence Mirror Assembly

C. G. Hull-Allen, R. Maeda, C. F. Comstock, C. M. Kennemore III, K. E. Tapp, A. F. Slomba, R. G. Kusha

Proceedings Volume 1160, X-Ray/EUV Optics for Astronomy and Microscopy; (1989) https://doi.org/10.1117/12.962671
Event: 33rd Annual Technical Symposium, 1989, San Diego, United States

Abstract

Unique mechanical and optical design features of this solar x-ray telescope were required to survive launch, and to achieve excellent imagery over a large field of view. These design features placed exceptional demands on all of the manufacturing and measurement processes. Survivability dictated use of a monolithic mirror assembly with both optical surfaces generated and polished on the same substrate. Good performance dictated a maximum axial separation of 5 mm between these surfaces (H-1 and H-2), placing difficult restrictions on the generation, polishing, and smoothing operations. The wide field requirements of a solar imager placed unprecedented tolerances on measurement and control of H-1 to H-2 alignment, delta-delta Radius, and absolute axial sag, because of the short axial dimension. An additional portion of the error budget for delta-delta Radius had to be given to large on-orbit thermal variations, tightening this specification even further.

Citation Download Citation

C. G. Hull-Allen, R. Maeda, C. F. Comstock, C. M. Kennemore III, K. E. Tapp, A. F. Slomba, and R. G. Kusha "Precision Optical Fabrication And Test Methods Applied To The SXT Grazing Incidence Mirror Assembly", Proc. SPIE 1160, X-Ray/EUV Optics for Astronomy and Microscopy, (28 July 1989); https://doi.org/10.1117/12.962671

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