Автор |
M F Tompsett |
Автор |
C W B Grigson |
Дата выпуска |
1966-07-01 |
dc.description |
The problems of high energy glancing-angle electron diffraction are discussed and the design of a diffractometer which largely overcomes them is described. This instrument is a reflection scanning electron diffraction system equipped with loss-electron filtering and two-dimensional scanning of the diffraction pattern. It is able to measure I(β, γ) as a three-dimensional display with an intensity accuracy to ±1%, provided the current exceeds 0.01 pA in the solid angle element, which is 10<sup>-7</sup> steradian in size. Filtering is to 6 ev in a 20 kev beam.The system has produced the first essentially elastic diffraction patterns from bulk grain-oriented and single-crystal materials. Removal of the loss electrons greatly improves contrast. Partial pressure of contamination must be reduced below 5 ntorr for true reflection diffractograms to be obtained. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Reflection scanning electron diffraction with energy filtering |
Тип |
paper |
DOI |
10.1088/0950-7671/43/7/303 |
Print ISSN |
0950-7671 |
Журнал |
Journal of Scientific Instruments |
Том |
43 |
Первая страница |
430 |
Последняя страница |
435 |
Аффилиация |
M F Tompsett; Engineering Department, University of Cambridge |
Аффилиация |
C W B Grigson; Engineering Department, University of Cambridge |
Выпуск |
7 |