Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6930
Title: Design and development of soft x-ray optics for planetary observations
Authors: Panini, S. S
Issue Date: Jul-2015
Publisher: Indian Institute of Astrophysics
Citation: M. Tech. Thesis, University of Calcutta, Calcutta
Abstract: X-ray astronomy is severely constrained by poor photon statistics and hence, there is a definite need to develop efficient optics for increasing effective collecting area. But in the X-ray region, reflectivity from conventional mirrors is very small. So, in order to get high reflectivity, X-ray telescopes are designed for grazing incident angle (< 0.5 degree). This leads to large focal length, which increases the size of the payload and also results in very low effective area of the mirror. In this context, a re-look at the development of non-grazing incidence mirror for X-rays is important. This is possible with Multilayer Coated Mirrors which act as a reflection grating at X-ray region. In this context, a re-look at the development of non-grazing incidence mirror for X-rays is important. This is possible with Multilayer Coated Mirrors which act as a reflection grating at X-ray region.In this context, behavioral properties of multilayer layer coated mirrors are studied. High efficiency multilayer mirrors are coated and tested at facilities available in RRCAT. These mirrors provide large effective area when compared to single layer coated mirrors as they can be operated at higher angles. A conceptual telescope design in combination with both single layer coated mirrors and multilayer coated mirrors is made. Coating and design specifications of the telescope are discussed in chapter 3. A detailed study of effective area of the telescope in presented. A preliminary study on imaging performance and mechanical design of the telescope is also discussed.
Description: Thesis Supervisors Prof. P. Sreekumar, Dr. K. C. Shyama Narendranath and Dr. G. S. Lodha
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URI: http://hdl.handle.net/2248/6930
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Appears in Collections:Integrated M.Tech-Ph.D (Tech.)

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