scholarly journals Overview of the scientific objectives of the High Current Experiment for heavy-ion fusion

Author(s):  
P. Seidl ◽  
R. Bangerter ◽  
C. Celata ◽  
A. Faltens ◽  
V. Karpenko ◽  
...  
2002 ◽  
Vol 20 (4) ◽  
pp. 577-579 ◽  
Author(s):  
C.M. CELATA ◽  
D.P. GROTE ◽  
I. HABER

The Heavy Ion Fusion Virtual National Laboratory High Current Experiment (HCX) is exploring transport issues such as dynamic aperture, effects of quadrupole rotation, and the effects on the beam of nonideal distribution function, mismatch, and electrons, using one driver-scale 0.2 μC/m, 2–10 μs coasting K+ beam. Two- and three-dimensional simulations are being done, using the particle-in-cell code WARP to study these phenomena. We present results which predict that the dynamic aperture in the electrostatic focusing transport section will be set by particle loss.


2002 ◽  
Vol 20 (4) ◽  
pp. 617-620 ◽  
Author(s):  
A. FALTENS ◽  
A. LIETZKE ◽  
G. SABBI ◽  
P. SEIDL ◽  
S. LUND ◽  
...  

The heavy ion fusion program is developing single aperture superconducting quadrupoles based on NbTi conductor, for use in the High Current Experiment at Lawrence Berkeley National Laboratory. Following the fabrication and testing of prototypes using two different approaches, a baseline design has been selected and further optimized. A prototype cryostat for a quadrupole doublet, with features to accommodate induction acceleration modules, is being fabricated. The single aperture magnet was derived from a conceptual design of a quadrupole array magnet for multibeam transport. Progress on the development of superconducting quadrupole arrays for future experiments is also reported.


2002 ◽  
Vol 20 (3) ◽  
pp. 435-440 ◽  
Author(s):  
P.A. SEIDL ◽  
D. BACA ◽  
F.M. BIENIOSEK ◽  
A. FALTENS ◽  
S.M. LUND ◽  
...  

The High Current Experiment (HCX) is being assembled at Lawrence Berkeley National Laboratory as part of the U.S. program to explore heavy ion beam transport at a scale representative of the low-energy end of an induction linac driver for fusion energy production. The primary mission of this experiment is to investigate aperture fill factors acceptable for the transport of space-charge dominated heavy ion beams at high space-charge intensity (line-charge density ∼ 0.2 μC/m) over long pulse durations (>4 μs). This machine will test transport issues at a driver-relevant scale resulting from nonlinear space-charge effects and collective modes, beam centroid alignment and beam steering, matching, image charges, halo, lost-particle induced electron effects, and longitudinal bunch control. We present the first experimental results carried out with the coasting K+ ion beam transported through the first 10 electrostatic transport quadrupoles and associated diagnostics. Later phases of the experiment will include more electrostatic lattice periods to allow more sensitive tests of emittance growth, and also magnetic quadrupoles to explore similar issues in magnetic channels with a full driver scale beam.


2003 ◽  
Author(s):  
D.D.-M. Ho ◽  
I. Haber ◽  
R. Crandall ◽  
S.T. Brandon

1981 ◽  
Vol 28 (3) ◽  
pp. 3389-3391 ◽  
Author(s):  
W. Chupp ◽  
A. Faltens ◽  
E. Hartwig ◽  
E. Hoyer ◽  
D. Keefe ◽  
...  

1996 ◽  
Author(s):  
W.M. Sharp ◽  
D.A. Callahan ◽  
A. Griedman ◽  
D.P. Grote

1997 ◽  
Author(s):  
W. M. Sharp ◽  
D. A. Callahan ◽  
A. Friedman ◽  
D. P. Grote

1996 ◽  
Vol 32-33 ◽  
pp. 385-389
Author(s):  
M. Winkler ◽  
H. Wollnik ◽  
B. Pfreundtner ◽  
E.I. Escha ◽  
P. Spiller

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