Emittance conservation by tailored focusing profiles in a plasma accelerator
نویسندگان
چکیده
منابع مشابه
Emittance and Current of Electrons Trapped in a Plasma Wakefield Accelerator
In recent experiments plasma electrons became trapped in a plasma wakefield accelerator (PWFA). The transverse size of these trapped electrons on a downstream diagnostic yields an upper limit measurement of transverse normalized emittance divided by peak current, εN,x/I. The lowest upper limit for εN,x/I measured in the experiment is 1.3 ·10−10m/A.
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X-ray spectroscopy is used to obtain single-shot information on electron beam emittance in a low-energy-spread 0.5 GeV-class laser-plasma accelerator. Measurements of betatron radiation from 2 to 20 keV used a CCD and single-photon counting techniques. By matching x-ray spectra to betatron radiation models, the electron bunch radius inside the plasma is estimated to be ~0.1 μm. Combining this w...
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SLAC is proposing to build a new Accelerator Test Facility (ATF) capable of producing a 50 MeV electron beam with an extremely low geometric tran8ver8e emittance (1.5 x lo-lo rad.m) for the purpose of teeting new methods of acceleration. The low emittance will be achieved by a88ernbling a liiur accelerator using one standard SLAC three-meter r&ion and a 400 kV electron gun with a very rmall pho...
متن کاملEmittance Growth of an Intense Electron in a Focusing Channel
We use the single-particle radial equation of motion to identify nonlinear forces which lead to an emittance growth in a focusing channel consisting of solenoids. For a uniform density beam, the two dominant effects are the axial velocity variations within a solenoid due to the particles’ azimuthal velocity and changes in the particle’s energy due to radial motion and the radial electric spacec...
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ژورنال
عنوان ژورنال: Physical Review Special Topics - Accelerators and Beams
سال: 2015
ISSN: 1098-4402
DOI: 10.1103/physrevstab.18.041302