TY - GEN
T1 - Advanced numerical modeling of collective final focus for intense ion beams
AU - Dorf, Mikhail
AU - Kaganovich, Igor D.
AU - Startsev, Edward
AU - Davidson, Ronald C.
PY - 2010
Y1 - 2010
N2 - This paper presents results of advanced numerical simulations demonstrating the feasibility of tight collective focusing of intense ion beams for the Neutralizing Drift Compression Experiment (NDCX-I). In the collective focusing scheme, a weak magnetic lens provides strong focusing of an intense ion beam carrying an equal amount of neutralizing electron background [S. Roberston, Phys. Rev. Lett. 48, 149 (1982)]. For instance, a solenoidal magnetic field of several hundred gauss can focus an intense neutralized ion beam within a short distance of several centimeters. The enhanced focusing is provided by a strong self-electric field, which is produced by the collective electron dynamics. The numerical simulations are performed with the LSP particle-in-cell (PIC) code, and the results of the simulations are found to be in very good agreement with analytical predictions. Collective focusing limitations due to possible heating of the co-moving electrons during the transverse compression are also discussed.
AB - This paper presents results of advanced numerical simulations demonstrating the feasibility of tight collective focusing of intense ion beams for the Neutralizing Drift Compression Experiment (NDCX-I). In the collective focusing scheme, a weak magnetic lens provides strong focusing of an intense ion beam carrying an equal amount of neutralizing electron background [S. Roberston, Phys. Rev. Lett. 48, 149 (1982)]. For instance, a solenoidal magnetic field of several hundred gauss can focus an intense neutralized ion beam within a short distance of several centimeters. The enhanced focusing is provided by a strong self-electric field, which is produced by the collective electron dynamics. The numerical simulations are performed with the LSP particle-in-cell (PIC) code, and the results of the simulations are found to be in very good agreement with analytical predictions. Collective focusing limitations due to possible heating of the co-moving electrons during the transverse compression are also discussed.
UR - https://www.scopus.com/pages/publications/84886916728
UR - https://www.scopus.com/pages/publications/84886916728#tab=citedBy
M3 - Conference contribution
AN - SCOPUS:84886916728
SN - 9789290833529
T3 - IPAC 2010 - 1st International Particle Accelerator Conference
SP - 4635
EP - 4637
BT - IPAC 2010 - 1st International Particle Accelerator Conference
T2 - 1st International Particle Accelerator Conference, IPAC 2010
Y2 - 23 May 2010 through 28 May 2010
ER -