Plasma Channel Transport for Heavy Ion Fusion: Investigation of Beam Transport, Channel Initiation and Stability

2002 ◽  
Author(s):  
Andreas Tauschwitz
Keyword(s):  
Plasma Channel ◽  
Heavy Ion ◽  
Beam Transport ◽  
Transport Channel ◽  
Channel Transport ◽  
Channel Initiation ◽  
Heavy Ion Fusion

Plasma lens focusing and plasma channel transport for heavy ion fusion

1996 ◽  
Vol 32-33 ◽  
pp. 493-502 ◽  
Author(s):  
A. Tauschwitz ◽  
S.S. Yu ◽  
S. Eylon ◽  
R.O. Bangerter ◽  
W. Leemans ◽  
...  
Keyword(s):  
Plasma Channel ◽  
Heavy Ion ◽  
Channel Transport ◽  
Heavy Ion Fusion

scholarly journals New concept on the application of supersonic gas jets for space charge neutralized beam transport in an ICF reactor chamber

1997 ◽  
Vol 15 (2) ◽  
pp. 231-233
Author(s):  
P. Spiller ◽  
V. L. Varentsov
Keyword(s):  
Space Charge ◽  
Plasma Channel ◽  
Ballistic Transport ◽  
Supersonic Jet ◽  
Heavy Ion ◽  
Beam Transport ◽  
Channel Stability ◽  
High Current Discharge ◽  
Gas Expansion ◽  
Heavy Ion Fusion

One of the most crucial problems of a heavy ion fusion (HIF) driver is the transport of the beam from the final focusing system to the fusion target. The conventional focusing scheme is based on ballistic transport, assuming that all space charge effects can be kept sufficiently small. To achieve a space charge neutralized beam transport, other more sophisticated schemes like beam transport in a plasma channel have been suggested. Inspired by the results of the first experiments on the generation of adequate discharge-driven plasmas, we suggest applying a pulsed supersonic gas jet for the high-current discharge channel creation, thereby improving the plasma channel stability. The supersonic jet is produced by a gas expansion into the reactor chamber through a converging-diverging nozzle that has a hollow inner tube on its axis for both heavy ion and UV laser beam injection.

scholarly journals Transport of heavy-ion beams in a 1 m free-standing plasma channel

2006 ◽  
Vol 24 (1) ◽  
pp. 71-80 ◽  
Author(s):  
S. NEFF ◽  
R. KNOBLOCH ◽  
D.H.H. HOFFMANN ◽  
A. TAUSCHWITZ ◽  
S.S. YU
Keyword(s):  
Fusion Reactor ◽  
Ballistic Transport ◽  
Heavy Ion ◽  
Ion Beams ◽  
Beam Transport ◽  
Free Standing ◽  
Plasma Channels ◽  
Channel Transport ◽  
Stable Plasma ◽  
Heavy Ion Fusion

The transport of high-current heavy-ion beams in plasma channels is a promising option for the final transport in a heavy-ion fusion reactor, since it simplifies the construction of the reactor chamber significantly. Our experiments at the Gesellschaft für Schwerionenforschung demonstrate the creation of 1 m long stable plasma channels and the transport of heavy-ion beams. The article outlines the experimental setup used at GSI and reports the results of beam transport measurements using these long channels. The experiments demonstrate good beam transport properties of the channel, indicating that channel transport is a viable alternative to neutralized-ballistic transport.

scholarly journals Experimental investigation of ion beam transport in laser initiated plasma channels

2002 ◽  
Vol 20 (4) ◽  
pp. 559-563 ◽  
Author(s):  
D. PENACHE ◽  
C. NIEMANN ◽  
A. TAUSCHWITZ ◽  
R. KNOBLOCH ◽  
S. NEFF ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Heavy Ions ◽  
Plasma Channel ◽  
Ion Beam ◽  
Heavy Ion ◽  
High Current ◽  
Beam Transport ◽  
Electrode Gap ◽  
Discharge Gap ◽  
The Magnetic Field

The aim of the presented experiments is to study the transport of a heavy ion beam in a high-current plasma channel. The discharge is initiated in NH3 gas at pressures between 2 and 20 mbar by a line-tuned CO2 laser. A stable discharge over the entire electrode gap (0.5 m) was achieved for currents up to 60 kA. Concerning the ion beam transport, the magnetic field distribution inside the plasma channel has to be known. The ion-optical properties of the plasma channel have been investigated using different species of heavy ions (C, Ni, Au, U) with 11.4 MeV/u during six runs at the Gesellschaft für Schwerionenforschungs-UNILAC linear accelerator. The high magnetic field allowed the accomplishment of one complete betatron oscillation along the discharge channel. The results obtained up to now are very promising and suggest that, by scaling the discharge gap to longer distances, the beam transport over several meters is possible with negligible losses.

Adiabatic focusing and channel transport for heavy ion fusion

1997 ◽  
Author(s):  
A. Tauschwitz ◽  
S. S. Yu ◽  
R. O. Bangerter ◽  
J. J. Barnard ◽  
S. Eylon ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Channel Transport ◽  
Heavy Ion Fusion

Intense-heavy-ion-beam transport through an insulator beam guide for heavy ion fusion

1999 ◽  
Author(s):  
Takashi Kikuchi ◽  
Shigeo Kawata ◽  
Shigeru Kato ◽  
Susumu Hanamori ◽  
Masaru Yazawa
Keyword(s):  
Ion Beam ◽  
Heavy Ion ◽  
Beam Transport ◽  
Heavy Ion Beam ◽  
Heavy Ion Fusion

Tests of prototype quadrupole magnets for heavy ion fusion beam transport

2003 ◽  
Vol 13 (2) ◽  
pp. 1508-1511
Author(s):  
C. Gung ◽  
J.V. Minervini ◽  
J.H. Schultz ◽  
R.B. Meinke ◽  
C.L. Goodzeit ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Beam Transport ◽  
Heavy Ion Fusion
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