XMM space telescope: development plan for the lightweight replicated x-ray gratings

Richard C. Montesanti; Dennis P. Atkinson; David F. Edwards; Jeffrey L. Klingmann

doi:10.1117/12.23229

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1 February 1991 XMM space telescope: development plan for the lightweight replicated x-ray gratings

Richard C. Montesanti, Dennis P. Atkinson, David F. Edwards, Jeffrey L. Klingmann

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Proceedings Volume 1343, X-Ray/EUV Optics for Astronomy, Microscopy, Polarimetry, and Projection Lithography; (1991) https://doi.org/10.1117/12.23229
Event: 34th Annual International Technical Symposium on Optical and Optoelectronic Applied Science and Engineering, 1990, San Diego, CA, United States

Abstract

An approach and development plan for the production of replicated variable line spacing X-ray reflection gratings on lightweight substrates is described. The gratings will be arrayed in spectrometers to analyze the soft X-rays gathered by the telescopes flown aboard the European Space Agency (ESA) "X-ray Multi- Mirror Mission" (XMM). The mission requires about 750 gratings to form 3 arrays. Each array provides a grating area of approximately 5 square meters. From relatively few master gratings, the low blaze angle gratings will be replicated onto 55 gram substrates having an equivalent length/thickness aspect ratio &square;40. We will describe the criteria used for selecting the substrate design and material. A multi-phased study to solve identified technical problems associated with the replication of these gratings is also described. We will report on the present status of the substrates and replication process.

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Richard C. Montesanti, Dennis P. Atkinson, David F. Edwards, and Jeffrey L. Klingmann "XMM space telescope: development plan for the lightweight replicated x-ray gratings", Proc. SPIE 1343, X-Ray/EUV Optics for Astronomy, Microscopy, Polarimetry, and Projection Lithography, (1 February 1991); https://doi.org/10.1117/12.23229

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