NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Characterization of X-Ray Diffraction System with a Microfocus X-Ray Source and a Polycapillary OpticWe present here an optimized microfocus x-ray source and polycapillary optic system designed for diffraction of small protein crystals. The x-ray beam is formed by a 5.5mm focal length capillary collimator coupled with a 40 micron x-ray source operating at 46Watts. Measurements of the x-ray flux, the divergence and the spectral characteristics of the beam are presented, This optimized system provides a seven fold greater flux than our recently reported configuration [M. Gubarev, et al., J. of Applied Crystallography (2000) 33, in press]. We now make a comparison with a 5kWatts rotating anode generator (Rigaku) coupled with confocal multilayer focusing mirrors (Osmic, CMF12- 38Cu6). The microfocus x-ray source and polycapillary collimator system delivers 60% of the x-ray flux from the rotating anode system. Additional ways to improve our microfocus x-ray system, and thus increase the x-ray flux will be discussed.
Document ID
20000067645
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Gubarev, Mikhail
(NASA Marshall Space Flight Center Huntsville, AL United States)
Marshall, Joy K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ciszak, Ewa
(NASA Marshall Space Flight Center Huntsville, AL United States)
Ponomarev, Igor
(NASA Marshall Space Flight Center Huntsville, AL United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 2000
Subject Category
Optics
Meeting Information
Meeting: 49th Annual Denver X-Ray Conference
Location: Denver, CO
Country: United States
Start Date: July 31, 2000
End Date: August 4, 2000
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available