Compensation of space charge for positive ion beams using electron injection and confinement in nonuniform magnetic fields

2011 ◽  
Vol 29 (2) ◽  
pp. 02B118 ◽  
Author(s):  
Dan Nicolaescu ◽  
Shigeki Sakai ◽  
Yasuhito Gotoh ◽  
Junzo Ishikawa
Keyword(s):  
Magnetic Fields ◽  
Space Charge ◽  
Electron Injection ◽  
Ion Beams ◽  
Positive Ion

Radial distribution of space-charge force in compensated positive-ion beams (invited)

1998 ◽  
Vol 69 (2) ◽  
pp. 1094-1099 ◽  
Author(s):  
R. Dölling ◽  
J. Pozimski ◽  
P. Gross
Keyword(s):  
Space Charge ◽  
Radial Distribution ◽  
Ion Beams ◽  
Positive Ion

Steady-state space charge blowup and recovery of intense ion beams

1978 ◽  
Vol 154 (3) ◽  
pp. 441-444 ◽  
Author(s):  
J.H. Whealton ◽  
G.G. Kelley ◽  
O.B. Morgan ◽  
G. Schilling
Keyword(s):  
Steady State ◽  
Space Charge ◽  
State Space ◽  
Ion Beams

Transport of intense ion beams and space charge compensation issues in low energy beam lines (invited)

2012 ◽  
Vol 83 (2) ◽  
pp. 02B320 ◽  
Author(s):  
N. Chauvin ◽  
O. Delferrière ◽  
R. Duperrier ◽  
R. Gobin ◽  
P. A. P. Nghiem ◽  
...  
Keyword(s):  
Space Charge ◽  
Charge Compensation ◽  
Ion Beams ◽  
Low Energy ◽  
Energy Beam

The structure of the impulse corona in a rod/plane gap I. The positive corona

1970 ◽  
Vol 315 (1520) ◽  
pp. 1-25 ◽  
Keyword(s):  
Spatial Distribution ◽  
Electric Field ◽  
Space Charge ◽  
Negative Ions ◽  
Corona Discharges ◽  
Theoretical Derivation ◽  
Plane Electrode ◽  
Positive Space Charge ◽  
Positive Ion ◽  
Positive Space

The dissipation of space charge following the growth of impulse corona discharges in positive rod/earthed plane gaps has been measured with an electrostatic fluxmeter. A method is described to determine the spatial distribution and magnitude of the space charge together with the associated electric field. Initial positive ion densities of up to 100 μC m -3 have been found. The total positive space charge deposited in a 40 cm gap at 160 kV is 500 nC. Electrons emitted from the plane electrode as a result of corona channels crossing the gap are shown to be trapped in the discharge space as negative ions. The recovery of the gap over several seconds is largely due to ionic drift to the electrodes. A theoretical derivation of the rate of deionization agrees with observed values.

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