Design of planar millimeter-wave metallic structures for Wakefield acceleration

Research output: Contribution to journalArticle

Abstract

Linear accelerators operating at millimeter or sub-terahertz frequencies and short pulse duration have the advantages of lower power consumption and high repetition rate. In this paper planar metallic accelerating structures with different modes operating at 210 GHz were designed. A tolerance study was also carried out to determine the sensitivities of the geometric parameters to the wakefield acceleration performance. The generated Wakefield was simulated using the beam parameter of the Compact Linear Advanced Research Accelerator (CLARA) test facility at Daresbury Laboratory. For a 55 MeV single electron bunch with charge of 250 pC and a bunch length of 0.27 mm (0.9 ps), an equivalent acceleration gradient of 20 MV/m was achieved in the simulation. The relatively modest acceleration gradient was limited by the charge in a single bunch. The acceleration gradient could be further improved by using a bunch train which has larger total bunch charge. From the simulation, the acceleration gradient of 100 MV/m can be generated when it is driven by a 10-bunch beam train.
LanguageEnglish
Pages48-62
Number of pages15
JournalJournal of Infrared, Millimeter and Terahertz Waves
Volume40
Issue number1
Early online date24 Oct 2018
DOIs
Publication statusPublished - 31 Jan 2019

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Millimeter waves
millimeter waves
gradients
Linear accelerators
test facilities
linear accelerators
Test facilities
Particle accelerators
repetition
pulse duration
Electric power utilization
accelerators
simulation
Electrons
sensitivity
electrons

Keywords

  • planar metallic waveguide
  • Wakefield generation
  • THz acceleration
  • acceleration structure

Cite this

@article{efb09821aa7845bfab831cb867aef103,
title = "Design of planar millimeter-wave metallic structures for Wakefield acceleration",
abstract = "Linear accelerators operating at millimeter or sub-terahertz frequencies and short pulse duration have the advantages of lower power consumption and high repetition rate. In this paper planar metallic accelerating structures with different modes operating at 210 GHz were designed. A tolerance study was also carried out to determine the sensitivities of the geometric parameters to the wakefield acceleration performance. The generated Wakefield was simulated using the beam parameter of the Compact Linear Advanced Research Accelerator (CLARA) test facility at Daresbury Laboratory. For a 55 MeV single electron bunch with charge of 250 pC and a bunch length of 0.27 mm (0.9 ps), an equivalent acceleration gradient of 20 MV/m was achieved in the simulation. The relatively modest acceleration gradient was limited by the charge in a single bunch. The acceleration gradient could be further improved by using a bunch train which has larger total bunch charge. From the simulation, the acceleration gradient of 100 MV/m can be generated when it is driven by a 10-bunch beam train.",
keywords = "planar metallic waveguide, Wakefield generation, THz acceleration, acceleration structure",
author = "Liang Zhang and Wenlong He and Steven Jamieson and Whyte, {Colin G.} and Kevin Ronald and Phelps, {Alan D.R.} and Cross, {Adrian W.}",
year = "2019",
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journal = "Journal of Infrared, Millimeter and Terahertz Waves",
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T1 - Design of planar millimeter-wave metallic structures for Wakefield acceleration

AU - Zhang, Liang

AU - He, Wenlong

AU - Jamieson, Steven

AU - Whyte, Colin G.

AU - Ronald, Kevin

AU - Phelps, Alan D.R.

AU - Cross, Adrian W.

PY - 2019/1/31

Y1 - 2019/1/31

N2 - Linear accelerators operating at millimeter or sub-terahertz frequencies and short pulse duration have the advantages of lower power consumption and high repetition rate. In this paper planar metallic accelerating structures with different modes operating at 210 GHz were designed. A tolerance study was also carried out to determine the sensitivities of the geometric parameters to the wakefield acceleration performance. The generated Wakefield was simulated using the beam parameter of the Compact Linear Advanced Research Accelerator (CLARA) test facility at Daresbury Laboratory. For a 55 MeV single electron bunch with charge of 250 pC and a bunch length of 0.27 mm (0.9 ps), an equivalent acceleration gradient of 20 MV/m was achieved in the simulation. The relatively modest acceleration gradient was limited by the charge in a single bunch. The acceleration gradient could be further improved by using a bunch train which has larger total bunch charge. From the simulation, the acceleration gradient of 100 MV/m can be generated when it is driven by a 10-bunch beam train.

AB - Linear accelerators operating at millimeter or sub-terahertz frequencies and short pulse duration have the advantages of lower power consumption and high repetition rate. In this paper planar metallic accelerating structures with different modes operating at 210 GHz were designed. A tolerance study was also carried out to determine the sensitivities of the geometric parameters to the wakefield acceleration performance. The generated Wakefield was simulated using the beam parameter of the Compact Linear Advanced Research Accelerator (CLARA) test facility at Daresbury Laboratory. For a 55 MeV single electron bunch with charge of 250 pC and a bunch length of 0.27 mm (0.9 ps), an equivalent acceleration gradient of 20 MV/m was achieved in the simulation. The relatively modest acceleration gradient was limited by the charge in a single bunch. The acceleration gradient could be further improved by using a bunch train which has larger total bunch charge. From the simulation, the acceleration gradient of 100 MV/m can be generated when it is driven by a 10-bunch beam train.

KW - planar metallic waveguide

KW - Wakefield generation

KW - THz acceleration

KW - acceleration structure

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DO - 10.1007/s10762-018-0545-8

M3 - Article

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SP - 48

EP - 62

JO - Journal of Infrared, Millimeter and Terahertz Waves

T2 - Journal of Infrared, Millimeter and Terahertz Waves

JF - Journal of Infrared, Millimeter and Terahertz Waves

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