Conical foil optics for the collimation of soft x rays

Samuel L. Espy; David B. O'Hara; Scott Scarborough; Melvin L. Price

doi:10.1117/12.193128

11 November 1994 Conical foil optics for the collimation of soft x rays

Samuel L. Espy, David B. O'Hara, Scott Scarborough, Melvin L. Price

Proceedings Volume 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics; (1994) https://doi.org/10.1117/12.193128
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

Physitron has constructed a grazing incidence nested optic designed to collect and collimate a broad energy bandwidth of diverging soft x-rays (nominally 1.5 keV) emanating from a point source. Although this optic was designed to collimate rather than focus x-rays, our optic is similar to the nested conical foil x-ray telescopes which have been constructed and successfully used by NASA. Key differences exist between our optic and NASA's telescopes. First, the aperture of our optic is 28 cm² which is considerably smaller than NASA's telescopes. Second, the reflectors in NASA's telescopes are contained in an annular ring, leaving the middle of the optic open. Our optic has a much smaller open area at its radial center. These differences required an innovative fabrication technique in which the reflective rings are formed as complete rings from lacquer-smoothed aluminum foil instead of forming the reflectors as quadrants as in NASA's technique. This paper will discuss the key design considerations and procedures for the collimator in addition to a description of the fabrication technique used.

Citation Download Citation

Samuel L. Espy, David B. O'Hara, Scott Scarborough, and Melvin L. Price "Conical foil optics for the collimation of soft x rays", Proc. SPIE 2279, Advances in Multilayer and Grazing Incidence X-Ray/EUV/FUV Optics, (11 November 1994); https://doi.org/10.1117/12.193128

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