1. New Fabrication and Metrology Methods for Blazed, Radially-ruled Gratings Open Access Author: Zhang, Ningxiao Title: New Fabrication and Metrology Methods for Blazed, Radially-ruled Gratings Graduate Program: Astronomy and Astrophysics Keywords: X-raysaccretion disksabsorption linesquasarsdiffraction gratingcustomized groove patterperiodmappingmetrology File: Download Thesis_NingxiaoZhang.pdf Committee Members: Douglas Cowen, Outside Unit & Field MemberFabien Grise, Major Field MemberMichael Eracleous, Major Field MemberRandy McEntaffer, Chair & Dissertation AdvisorRebekah Ilene Dawson, Program Head/Chair