Direct observation of plasma-lens effect

Journal Article · Mon Apr 08 04:00:00 EDT 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.1870· OSTI ID:5847610

Nakanishi, H; Yoshida, Y; Ueda, T; Kozawa, T; Shibata, H; Nakajima, K; Kurihara, T; Yugami, N; Nishida, Y; Kobayashi, T; Enomoto, A; Oogoe, T; Kobayashi, H; Newberger, B S; Tagawa, S; Miya, K; Ogata, A ^[1]

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1. National Laboratory for High Energy Physics, Tsukuba 305, Japan (JP) Nuclear Engineering Research Laboratory, The University of Tokyo, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan Research Center for Nuclear Science Technology, The University of Tokyo, Tokai-mura, Naka-gun, Ibaraki-ken 319-11, Japan Department of Electrical Engineering, Utsunomiya University, Utsunomiya 321, Japan

A plasma lens for 18-MeV round-shaped electron beams was experimentally studied; the lens is based on self-focusing due to shielding of the space charge of a particle beam by a quiescent plasma. A differential pumping technique was applied to separate the plasma chamber from the linac acceleration duct. It is shown that overdense plasmas successfully focus the electron beams. Another finding is that the plasmas appear to reduce the transverse emittance.

• OSTI ID: 5847610
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:14; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ACCELERATORS
BEAM EMITTANCE
BEAM-PLASMA SYSTEMS
BEAMS
CIRCULAR CONFIGURATION
CONFIGURATION
ELECTRON BEAMS
ENERGY RANGE
FOCUSING
INHIBITION
LENSES
LEPTON BEAMS
LINEAR ACCELERATORS
MEV RANGE
MEV RANGE 10-100
PARTICLE BEAMS
PLASMA
QUIESCENT PLASMA
SHAPE
SPACE CHARGE
VACUUM SYSTEMS