학술논문
Direct Measurement of Focusing Fields in Active Plasma Lenses
Document Type
Working Paper
Author
Source
Phys. Rev. Accel. Beams 21, 122801 (2018)
Subject
Language
Abstract
Active plasma lenses have the potential to enable broad-ranging applications of plasma-based accelerators owing to their compact design and radially symmetric kT/m-level focusing fields, facilitating beam-quality preservation and compact beam transport. We report on the direct measurement of magnetic field gradients in active plasma lenses and demonstrate their impact on the emittance of a charged particle beam. This is made possible by the use of a well-characterized electron beam with 1.4 mm mrad normalized emittance from a conventional accelerator. Field gradients of up to 823 T/m are investigated. The observed emittance evolution is supported by numerical simulations, which suggest the potential for conservation of the core beam emittance in such a plasma lens setup.
Comment: 17 pages, 7 Figures
Comment: 17 pages, 7 Figures