scholarly journals Author Correction: Generalized superradiance for producing broadband coherent radiation with transversely modulated arbitrarily diluted bunches

2021 ◽  
Author(s):  
J. Vieira ◽  
M. Pardal ◽  
J. T. Mendonça ◽  
R. A. Fonseca
Keyword(s):  
Author(s):  
T. A. Welton

Various authors have emphasized the spatial information resident in an electron micrograph taken with adequately coherent radiation. In view of the completion of at least one such instrument, this opportunity is taken to summarize the state of the art of processing such micrographs. We use the usual symbols for the aberration coefficients, and supplement these with £ and 6 for the transverse coherence length and the fractional energy spread respectively. He also assume a weak, biologically interesting sample, with principal interest lying in the molecular skeleton remaining after obvious hydrogen loss and other radiation damage has occurred.


1978 ◽  
Vol 32 (2) ◽  
pp. 88-90 ◽  
Author(s):  
V. Granatstein ◽  
C. Roberson ◽  
G. Benford ◽  
D. Tzach ◽  
S. Robertson

Author(s):  
Boaz Nash ◽  
Nicholas Goldring ◽  
Jonathan Edelen ◽  
Stephen Webb ◽  
Rafael Celestre

2007 ◽  
Vol 22 (22) ◽  
pp. 3838-3851 ◽  
Author(s):  
R. A. KISHEK ◽  
G. BAI ◽  
S. BERNAL ◽  
D. FELDMAN ◽  
T. F. GODLOVE ◽  
...  

New coherent radiation sources in the hard X-ray and Terahertz regimes promise exciting new developments in science, as previously dark areas of the spectrum are brightly illuminated. Ultra-short, ultra-bright radiation packets can probe the structure of matter, and image chemical and biological processes well beyond the present state of the art. Production of this coherent radiation, however, places an unprecedented challenge on the production and acceleration of high-quality electron beams. To deliver a nano-Coulomb of charge with an emittance of less than one micron, while transporting the beam through long sections of acceleration and compression, is the prerequisite for unlocking the gates of this promising new science. Using a low-energy electron storage ring, we deliberately enhance the space charge force while slowing down the time-scale to easily measurable levels so as to maximize our understanding of the particle dynamics necessary for producing bright beams.


1992 ◽  
Vol 68 (9) ◽  
pp. 1434-1434 ◽  
Author(s):  
Norman K. Sherman

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