Electron beam instabilities as generation mechanism of electrostatic solitary waves in the magnetotail

1996 ◽  
Vol 101 (A2) ◽  
pp. 2685-2697 ◽  
Author(s):  
Y. Omura ◽  
H. Matsumoto ◽  
T. Miyake ◽  
H. Kojima
Keyword(s):  
Electron Beam ◽  
Solitary Waves ◽  
Generation Mechanism ◽  
Beam Instabilities

scholarly journals Supershort avalanche electron beam generation in gases

2008 ◽  
Vol 26 (4) ◽  
pp. 605-617 ◽  
Author(s):  
V.F. Tarasenko ◽  
E.H. Baksht ◽  
A.G. Burachenko ◽  
I.D. Kostyrya ◽  
M.I. Lomaev ◽  
...  
Keyword(s):  
High Pressure ◽  
Electron Beam ◽  
Atmospheric Pressure ◽  
Electron Beams ◽  
Solid Angle ◽  
Generation Mechanism ◽  
Full Width ◽  
Half Maximum ◽  
Electron Beam Pulse ◽  
Supershort Avalanche Electron Beam

AbstractThis paper reports on the properties of a supershort avalanche electron beam generated in the air or other gases under atmospheric pressure and gives the analysis of a generation mechanism of supershort avalanche electron beam, as well as methods of such electron beams registration. It is reported that in the air under the pressure of 1 atm, a supershort (<100 ps) avalanche electron beam is formed in the solid angle more than 2π steradian. The electron beam has been obtained behind a 45 µm thick Al-Be foil in SF6 and Xe under the pressure of 2 atm, and in He, under the pressure of about 15 atm. It is shown that in SF6 under the high pressure (>1 atm) duration (full width at half maximum) of supershort avalanche electron beam pulse is about 150 ps.

scholarly journals Electron beam instabilities in gyrotron beam tunnels

1998 ◽  
Vol 5 (6) ◽  
pp. 2421-2430 ◽  
Author(s):  
M. Pedrozzi ◽  
S. Alberti ◽  
J. P. Hogge ◽  
M. Q. Tran ◽  
T. M. Tran
Keyword(s):  
Electron Beam ◽  
Beam Instabilities

Electron acoustic solitary waves in a magnetized plasma with nonthermal electrons and an electron beam

2016 ◽  
Vol 23 (8) ◽  
pp. 082310 ◽  
Author(s):  
S. V. Singh ◽  
S. Devanandhan ◽  
G. S. Lakhina ◽  
R. Bharuthram
Keyword(s):  
Electron Beam ◽  
Solitary Waves ◽  
Magnetized Plasma ◽  
Nonthermal Electrons ◽  
Electron Acoustic

X-Rays at the SIAM Photon Source

2005 ◽  
Vol 107 ◽  
pp. 1-6 ◽  
Author(s):  
R. Apiwatwaja ◽  
S. Chunjarean ◽  
K. Hass ◽  
G. Hoyes ◽  
C. Kaewprasert ◽  
...  
Keyword(s):  
Electron Beam ◽  
Beam Energy ◽  
Photon Beam ◽  
Electron Beam Energy ◽  
X Rays ◽  
Vacuum Chambers ◽  
Wavelength Shifter ◽  
Insertion Device ◽  
Beam Instabilities ◽  
Photon Source

In this note, we describe the upgrade effort to convert the SIAM Photon source into an Xray synchrotron radiation facility with photon energies up to some 15 keV. This conversion of SIAM Photon into a third generation light source can be achieved through an increase of the electron beam energy and the addition of recently available superconducting wavelength shifter and multipole wiggler magnets. A gradual retrofit of vacuum chambers aiming at a reduction of electron beam instabilities as well as a modification of the focusing structure are expected to greatly increase the brightness of the photon beam. These upgrades will be implemented gradually over a few years to minimize the interruption of ongoing experimental activities. As an ultimate upgrade, a study has been started which shows the feasibility to implement a 2 GeV storage ring replacing the present ring in the same foot print. This new ring is configured to provide double the number of insertion device photon beam lines.

Sign in / Sign up

Export Citation Format

Share Document