ON THE INTRINSIC ENERGY OF A SYSTEM OF BODIES

2011 ◽  
pp. 183-188
Author(s):  
James Clerk Maxwell
Keyword(s):  
Author(s):  
P. E. Batson

In recent years,instrumentation for electron energy loss spectroscopy (EELS) has been steadily improved to increase energy resolution and collection efficiency. At present 0.40eV at 10mR collection half angle is available with commercial magnetic sectors (e.g. Gatan, Inc. and VG Microscopes, Ltd.), and 70meV at 10mR has been demonstrated by use of a Wien filter within a large deceleration field. When these high resolution spectrometers are coupled to the modern small electron probe instrument, we obtain a tool which promises to reveal local changes in bandstructure and bonding near defects and interfaces in heterogeneous materials.Unfortunately, typical electron sources have intrinsic energy widths which limit attainable spectroscopic resolution in the absence of some monochromation system. For instance, the W thermal emitter has a half width of about 1eV.


2012 ◽  
Vol 52 (6) ◽  
pp. 1559-1572 ◽  
Author(s):  
Xiao Zhu ◽  
Pedro E.M. Lopes ◽  
Jihyun Shim ◽  
Alexander D. MacKerell

2010 ◽  
Vol 45 (3-6) ◽  
pp. 258-261 ◽  
Author(s):  
A.N. Vasil'ev ◽  
I.A. Markov ◽  
A.S. Zakharov

1985 ◽  
Vol 111 ◽  
pp. 529-532
Author(s):  
J. Krełowski ◽  
A. Strobel

Observational evaluation of intrinsic energy distributions in OB spectra is difficult as these stars are usually reddened and any dereddening procedure may change from place to place in the Galaxy. We compare two-color diagrams (UV vs. visual) from two stellar complexes of the same Sp/L class. The observed differences may be caused by additional far-UV reddening of distant objects as well as by intrinsic differences between stars belonging to different complexes. We argue in favor of the first possibility which would allow one to use the same standards in all of the Galaxy.


Nanoscale ◽  
2012 ◽  
Vol 4 (11) ◽  
pp. 3460 ◽  
Author(s):  
Zenan Qi ◽  
Harold S. Park

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