TY  - JOUR
AU  - Lindstrøm, C. A.
AU  - Adli, E.
AU  - Boyle, Gregory James
AU  - Corsini, R.
AU  - Dyson, A. E.
AU  - Farabolini, W.
AU  - Hooker, S. M.
AU  - Meisel, M.
AU  - Osterhoff, J.
AU  - Röckemann, J.-H.
AU  - Schaper, L.
AU  - Sjobak, K. N.
TI  - Emittance Preservation in an Aberration-Free Active Plasma Lens
JO  - Physical review letters
VL  - 121
IS  - 19
SN  - 1079-7114
CY  - College Park, Md.
PB  - APS
M1  - PUBDB-2018-04763
M1  - arXiv:1808.03691
SP  - 194801
PY  - 2018
AB  - Active plasma lensing is a compact technology for strong focusing of charged particle beams, which has gained considerable interest for use in novel accelerator schemes. While providing kT/m focusing gradients, active plasma lenses can have aberrations caused by a radially nonuniform plasma temperature profile, leading to degradation of the beam quality. We present the first direct measurement of this aberration, consistent with theory, and show that it can be fully suppressed by changing from a light gas species (helium) to a heavier gas species (argon). Based on this result, we demonstrate emittance preservation for an electron beam focused by an argon-filled active plasma lens.
LB  - PUB:(DE-HGF)29 ; PUB:(DE-HGF)16
C6  - pmid:30468609
UR  - <Go to ISI:>//WOS:000449402500003
DO  - DOI:10.1103/PhysRevLett.121.194801
UR  - https://bib-pubdb1.desy.de/record/416289
ER  -