Silicon Wafer X-ray Mirror Project

Metadata Updated: February 28, 2019

We propose to undertake the initial development of a Kirkpatrick-Baez (K-B) type X-ray mirror using the relatively recent availability of high quality, inexpensive, silicon wafers as reflectors. Proof of suitability will lead to the fabrication of a new class of lightweight X-ray mirrors for astronomical observations with suitably large effective area and moderate spatial resolution. We intend to build a demonstration unit, which uses multiple silicon wafers aligned in a housing structure, and test it with X-rays to show angular resolution, [HTML_REMOVED]30[HTML_REMOVED], at the end of the project.[HTML_REMOVED] In this one year research project, we propose to do the following four tasks; (1) Design the silicon wafer X-ray mirror demo unit and develop a ray-tracing code to estimate the mirror performance. We will need to determine detailed parameters of the unit, such as size of the silicon wafer, their angle and pitch. (2) We have to find a wafer processed by the [HTML_REMOVED]right[HTML_REMOVED] method suitable for our application: appropriately flat and thin. We will procure the silicon wafers and measure the surface flatness using an optical interferometer. (3) Design a holding structure of the silicon wafer and place them in the K-B system configuration. The structure should be able to place the wafers in micron accuracy. If the machining accuracy doesn[HTML_REMOVED]t allow us to do this, we would need to develop a method to align the wafer. (4) Once we have the manufacturing drawing, we will need to identify the manufacturer and fabricate the designed housing. Then we will assemble the first demonstration unit, and measure its performance at the X-ray beamline. The X-ray test results will be compared with ray-tracing simulations and used for the further developments in the future.[HTML_REMOVED]

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date February 28, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_14791
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id 4bd150a0-c633-4e90-aa64-d0f48b83185e
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2014-09-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 42e4b47875d57ffb462f4ec0ec617c03d3028ba6
Source Schema Version 1.1

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