| Autor: |
Carolyn A. MacDonald, J. R. Ruble, Joseph X. Ho, Walter M. Gibson, D. A. Carter, F. A. Hofmann |
| Rok vydání: |
2001 |
| Předmět: |
|
| Zdroj: |
Journal of Applied Crystallography. 34:330-335 |
| ISSN: |
0021-8898 |
| DOI: |
10.1107/s002188980100468x |
| Popis: |
The work in this paper is a systematic study of the application of collimating and slightly focusing polycapillary optics to the X-ray crystallographic structure determination of egg-white lysozyme using two different sources: a standard rotating anode source and a low-power table-top microfocusing source. For the rotating anode source, a series of measurements comparing duplicate data sets obtained from the same individual crystal are summarized. Intensity and data quality are discussed for measurements with a pinhole collimator, a collimating polycapillary optic and a focusing polycapillary optic. The collected data were analyzed using conventional analysis software; limitations of the use of conventional analysis software for focused beams are discussed. Two data sets were collected using the low-power source and collimating optics, and three data sets using a lower-power source and focusing optics with three different limiting apertures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
