Method of electron beam diffraction analysis

申请公布号：

GB2516329(A)

申请号：

GB20140004073

申请日期：

2014.02.14

申请公布日期：

2015.01.21

申请人：

OXFORD INSTRUMENTS NANOTECHNOLOGY TOOLS LIMITED

发明人：

CHARLES PENMAN;NIELS-HENRIK SCHMIDT;KNUD THOMSEN

分类号：

G01N23/203

主分类号：

G01N23/203

摘要：

<p>A method is provided for analysing electron backscatter diffraction data generated from a sample material. An image data set representative of an image of electron backscatter diffraction bands is obtained from the sample material. A set of estimated first diffraction parameters is then generated, these defining individual electron backscatter diffraction bands in the image data set. A candidate phase is then selected together with a respective orientation for the material,based upon the generated set of estimated parameters thereby identifying diffraction bands in the image data set. Second diffraction parameters of the identified diffraction bands are simulated for the candidate phase according to the respective orientation. These second diffraction parameters are then adjusted for the identified simulated bands so as to fit the simulated bands to the bands in the image data. A fitted orientation for the candidate phase is then calculated together with a corresponding fitting parameter defining the quality of fit.</p>