Meter-long plasma source for heavy ion beam space charge neutralization

2007 ◽  
Author(s):  
Philip C. Efthimion ◽  
Erik P. Gilson ◽  
Ronald C. Davidson ◽  
Larry Grisham ◽  
B. Grant Logan ◽  
...  
Keyword(s):  
Space Charge ◽  
Ion Beam ◽  
Plasma Source ◽  
Heavy Ion ◽  
Charge Neutralization ◽  
Heavy Ion Beam

scholarly journals Ferroelectric plasma source for heavy ion beam space charge neutralization

2007 ◽  
Vol 577 (1-2) ◽  
pp. 203-206 ◽  
Author(s):  
Philip C. Efthimion ◽  
Erik P. Gilson ◽  
Ronald C. Davidson ◽  
Larry Grisham ◽  
B. Grant Logan ◽  
...  
Keyword(s):  
Space Charge ◽  
Ion Beam ◽  
Plasma Source ◽  
Heavy Ion ◽  
Charge Neutralization ◽  
Heavy Ion Beam

scholarly journals Ferroelectric Plasma Source for Heavy Ion Beam Charge Neutralization

2006 ◽  
Author(s):  
P.C. Efthimion ◽  
E.P. Gilson ◽  
L. Grisham ◽  
R.C. Davidson ◽  
S. Yu ◽  
...  
Keyword(s):  
Ion Beam ◽  
Plasma Source ◽  
Heavy Ion ◽  
Charge Neutralization ◽  
Heavy Ion Beam

Development of a 1-m plasma source for heavy ion beam charge neutralization

2005 ◽  
Vol 544 (1-2) ◽  
pp. 378-382 ◽  
Author(s):  
Philip C. Efthimion ◽  
Erik P. Gilson ◽  
Larry Grisham ◽  
Ronald C. Davidson ◽  
Simon Yu ◽  
...  
Keyword(s):  
Ion Beam ◽  
Plasma Source ◽  
Heavy Ion ◽  
Charge Neutralization ◽  
Heavy Ion Beam

scholarly journals Long plasma source for heavy ion beam charge neutralization

2009 ◽  
Vol 606 (1-2) ◽  
pp. 124-127 ◽  
Author(s):  
Philip C. Efthimion ◽  
Erik P. Gilson ◽  
Larry Grisham ◽  
Ronald C. Davidson ◽  
Larry B. Grant Logan ◽  
...  
Keyword(s):  
Ion Beam ◽  
Plasma Source ◽  
Heavy Ion ◽  
Charge Neutralization ◽  
Heavy Ion Beam

scholarly journals Heavy ion beam final transport through an insulator guide in heavy ion fusion

2003 ◽  
Vol 21 (1) ◽  
pp. 27-32 ◽  
Author(s):  
SHIGEO KAWATA ◽  
TETSUO SOMEYA ◽  
TAKASHI NAKAMURA ◽  
SHUJI MIYAZAKI ◽  
KOJI SHIMIZU ◽  
...  
Keyword(s):  
Space Charge ◽  
Inertial Confinement Fusion ◽  
Ion Beam ◽  
Heavy Ion ◽  
Fuel Pellet ◽  
Inertial Confinement ◽  
Charge Neutralization ◽  
Beam Focusing ◽  
Confinement Fusion ◽  
Heavy Ion Beam

Key issues of heavy ion beam (HIB) inertial confinement fusion (ICF) include an efficient stable beam transport, beam focusing, uniform fuel pellet implosion, and so on. To realize a HIB fine focus on a fuel pellet, space-charge neutralization of incident focusing HIB is required at the HIB final transport just after a final focusing element in an HIB accelerator. In this article, an insulator annular tube guide is proposed at the final transport part, through which a HIB is transported. The physical mechanism of HIB charge neutralization based on an insulator annular guide is as follows: A local electric field created by HIB induces local discharges, and plasma is produced on the insulator inner surface. Then electrons are extracted from the plasma by the HIB net space charge. The electrons emitted neutralize the HIB space charge well.

On the propagation of energetic ion beams through a fusion target chamber

1978 ◽  
Vol 19 (1) ◽  
pp. 97-119 ◽  
Author(s):  
S. Jorna ◽  
W. B. Thompson
Keyword(s):  
Space Charge ◽  
Ion Beam ◽  
Heavy Ion ◽  
Ion Beams ◽  
Target Chamber ◽  
Uranium Ions ◽  
Fusion Target ◽  
Heavy Ion Beam ◽  
The Stability ◽  
Stream Type

This article treats some aspects of the propagation of a highly energetic heavy ion beam through a fusion target chamber. The stability of this beam to various perturbations is especially emphasized, first for vacuum propagation, and then for propagation through a background plasma. The results are illustrated by detailed calculations for a beam carrying 3 kA of current and consisting of 70GeV, singly ionized uranium ions. We find that such a beam will propagate stably through the target chamber. As a second example we have applied some of our results to the recently proposed I53+ concept in which up to a hundred beams of 40GeV iodine ions each carrying 4.2 kA of current are directed to the target. Our conclusions for this case are less optimistic, as such beams are likely to be subject to space-charge problems due to the increased value of v/γ and are prone to instabilities of the two-stream type.

Ballooning structure in density fluctuations observed with the 2 MeV heavy ion beam probe on the TEXT-U tokamak

1995 ◽  
Author(s):  
A. Fujisawa ◽  
A. Ouroua ◽  
J.W. Heard ◽  
T.P. Crowley ◽  
P.M. Schoch ◽  
...  
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Density Fluctuations ◽  
Heavy Ion Beam ◽  
Heavy Ion Beam Probe

scholarly journals Direct observation of potential profiles with a 200 keV heavy ion beam probe on the Compact Helical System

1997 ◽  
Vol 4 (5) ◽  
pp. 1357-1361 ◽  
Author(s):  
A. Fujisawa ◽  
H. Iguchi ◽  
S. Lee ◽  
T. P. Crowley ◽  
Y. Hamada ◽  
...  
Keyword(s):  
Direct Observation ◽  
Ion Beam ◽  
Heavy Ion ◽  
Heavy Ion Beam ◽  
Heavy Ion Beam Probe
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