scholarly journals An X-Ray Absorption Edge Detector for High-Resolution Measurement of Undulator Effective K-Parameter

2006 ◽  
Author(s):  
B. Yang ◽  
J. N. Galayda
Keyword(s):  
High Resolution ◽  
Absorption Edge ◽  
Edge Detector ◽  
X Ray ◽  
High Resolution Measurement ◽  
Resolution Measurement ◽  
X Ray Absorption

scholarly journals Dispersive X-Ray Synchrotron Studies of Pt-C Multilayers

1988 ◽  
Vol 143 ◽  
Author(s):  
B. Rodricks ◽  
F. Lamelas ◽  
D. Medjahed ◽  
W. Dos Passos ◽  
R. Smither ◽  
...  
Keyword(s):  
High Resolution ◽  
Absorption Spectra ◽  
Absorption Edge ◽  
Optical Constants ◽  
Scattering Data ◽  
X Ray ◽  
Simultaneous Acquisition ◽  
Ccd Detector ◽  
Synchrotron Studies ◽  
X Ray Absorption

AbstractWe demonstrate the simultaneous acquisition of high-resolution x-ray absorption spectra and scattering data, using a combination of energy-dispersive optics and a twodimensional CCD detector. Results are presented on the optical constants of Pt and on the reflectivity of a platinum-carbon multilayer at the LIII absorption edge of Pt.

X-Ray absorption edge elemental imaging of B. thuringienis

1989 ◽  
Vol 47 ◽  
pp. 212-213
Author(s):  
R. L. Stears
Keyword(s):  
Absorption Edge ◽  
Elemental Distribution ◽  
X Rays ◽  
Differential Absorption ◽  
Synchrotron Source ◽  
High Brightness ◽  
X Ray ◽  
Elemental Imaging ◽  
Cellular Integrity ◽  
X Ray Absorption

Because of the nature of the bacterial endospore, little work has been done on analyzing their elemental distribution and composition in the intact, living, hydrated state. The majority of the qualitative analysis entailed intensive disruption and processing of the endospores, which effects their cellular integrity and composition.Absorption edge imaging permits elemental analysis of hydrated, unstained specimens at high resolution. By taking advantage of differential absorption of x-ray photons in regions of varying elemental composition, and using a high brightness, tuneable synchrotron source to obtain monochromatic x-rays, contact x-ray micrographs can be made of unfixed, intact endospores that reveal sites of elemental localization. This study presents new data demonstrating the application of x-ray absorption edge imaging to produce elemental information about nitrogen (N) and calcium (Ca) localization using Bacillus thuringiensis as the test specimen.

High Resolution Measurement of Dose Distributions in the LEKSELL Gamma Knife

1994 ◽  
Vol 4 (4) ◽  
pp. 215-219
Author(s):  
P. Kindl ◽  
B. Obenaus ◽  
Kh. Feichtinger ◽  
G. Stuecklschweiger
Keyword(s):  
High Resolution ◽  
Gamma Knife ◽  
Dose Distributions ◽  
High Resolution Measurement ◽  
Resolution Measurement
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