High energy electron linacs; application to storage ring RF systems and linear colliders

Author(s):  
Perry B. Wilson ◽  
James E. Griffin
1981 ◽  
Vol 59 (11) ◽  
pp. 1734-1741
Author(s):  
Nathan Isgur

A large group of Canadian physicists has been studying the feasibility of building an electron storage ring (CHEER) tangent to a proton accelerator to study electron–quark collisions at extremely high energies. This article provides an overview of the physics, machine, and detector developments of the CHEER project along with a brief summary of the status of the project.


1995 ◽  
Vol 343 (1-4) ◽  
pp. 436-443 ◽  
Author(s):  
D.P. Barber ◽  
M. Böge ◽  
H.-D. Bremer ◽  
R. Brinkmann ◽  
W. Brückner ◽  
...  

2003 ◽  
Vol 18 (16) ◽  
pp. 2843-2850 ◽  
Author(s):  
Paul R. Bolton

The use of gaseous plasmas to strongly focus high density, high energy electron and positron beams has been experimentally demonstrated. Focusing plasmas have been beam-induced. In addition, interesting aspects of laser-induced preionization of the target gas have been observed. Potential applications to luminosity enhancement for linear colliders warrant further development of these techniques with machine parameters in mind.


Author(s):  
L. -M. Peng ◽  
M. J. Whelan

In recent years there has been a trend in the structure determination of reconstructed surfaces to use high energy electron diffraction techniques, and to employ a kinematic approximation in analyzing the intensities of surface superlattice reflections. Experimentally this is motivated by the great success of the determination of the dimer adatom stacking fault (DAS) structure of the Si(111) 7 × 7 reconstructed surface.While in the case of transmission electron diffraction (TED) the validity of the kinematic approximation has been examined by using multislice calculations for Si and certain incident beam directions, far less has been done in the reflection high energy electron diffraction (RHEED) case. In this paper we aim to provide a thorough Bloch wave analysis of the various diffraction processes involved, and to set criteria on the validity for the kinematic analysis of the intensities of the surface superlattice reflections.The validity of the kinematic analysis, being common to both the TED and RHEED case, relies primarily on two underlying observations, namely (l)the surface superlattice scattering in the selvedge is kinematically dominating, and (2)the superlattice diffracted beams are uncoupled from the fundamental diffracted beams within the bulk.


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