TY - JOUR

T1 - High-quality electron beam generation in a proton-driven hollow plasma wakefield accelerator

AU - Li, Y.

AU - Xia, G.

AU - Lotov, K. V.

AU - Sosedkin, A. P.

AU - Hanahoe, K.

AU - Mete-Apsimon, O.

PY - 2017/10/26

Y1 - 2017/10/26

N2 - Simulations of proton-driven plasma wakefield accelerators have demonstrated substantially higher accelerating gradients compared to conventional accelerators and the viability of accelerating electrons to the energy frontier in a single plasma stage. However, due to the strong intrinsic transverse fields varying both radially and in time, the witness beam quality is still far from suitable for practical application in future colliders. Here we demonstrate the efficient acceleration of electrons in proton-driven wakefields in a hollow plasma channel. In this regime, the witness bunch is positioned in the region with a strong accelerating field, free from plasma electrons and ions. We show that the electron beam carrying the charge of about 10% of 1 TeV proton driver charge can be accelerated to 0.6 TeV with a preserved normalized emittance in a single channel of 700 m. This high-quality and high-charge beam may pave the way for the development of future plasma-based energy frontier colliders.

AB - Simulations of proton-driven plasma wakefield accelerators have demonstrated substantially higher accelerating gradients compared to conventional accelerators and the viability of accelerating electrons to the energy frontier in a single plasma stage. However, due to the strong intrinsic transverse fields varying both radially and in time, the witness beam quality is still far from suitable for practical application in future colliders. Here we demonstrate the efficient acceleration of electrons in proton-driven wakefields in a hollow plasma channel. In this regime, the witness bunch is positioned in the region with a strong accelerating field, free from plasma electrons and ions. We show that the electron beam carrying the charge of about 10% of 1 TeV proton driver charge can be accelerated to 0.6 TeV with a preserved normalized emittance in a single channel of 700 m. This high-quality and high-charge beam may pave the way for the development of future plasma-based energy frontier colliders.

KW - WAKE-FIELD ACCELERATION

KW - HOSE INSTABILITY

KW - LINEAR COLLIDER

KW - CHANNEL

KW - DYNAMICS

KW - EQUILIBRIUM

KW - SIMULATION

KW - EFFICIENCY

KW - PHYSICS

KW - REGIME

UR - http://www.scopus.com/inward/record.url?scp=85032448781&partnerID=8YFLogxK

U2 - 10.1103/PhysRevAccelBeams.20.101301

DO - 10.1103/PhysRevAccelBeams.20.101301

M3 - Article

AN - SCOPUS:85032448781

VL - 20

JO - Physical Review Accelerators and Beams

JF - Physical Review Accelerators and Beams

SN - 2469-9888

IS - 10

M1 - 101301

ER -