Ceramic Materials As Mirrors For Synchrotron Radiation

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Abstract
The radiation resistance of silica and silica-based mirrors to synchrotron radiation is relatively low compared with that of a number of ceramic materials, of which silicon carbide has been studied most extensively, although other materials such as the hafnium carbides and nitrides have generally better X-ray reflective properties. The polishabilities of various types of silicon carbide, having microstructures which range from very homogeneous to a coarse porosity have been investigated, as well as that of one type of titanium nitride. All the materials are capable of being polished to a very high degree, and surface finishes of a few tenths of a nanometre peak to valley have been attained.

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