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Title: Interaction of an ultrarelativistic electron bunch train with a W-band accelerating structure: High power and high gradient

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [3];  [3];  [3];  [3];  [2];  [3];  [4];  [5];  [3]
  1. Argonne National Lab. (ANL), Lemont, IL (United States); Tsinghua Univ., Beijing (China)
  2. Argonne National Lab. (ANL), Lemont, IL (United States); Euclid Techlabs LLC, Solon, OH (United States)
  3. Argonne National Lab. (ANL), Lemont, IL (United States)
  4. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  5. Tsinghua Univ., Beijing (China)

Electron beam interaction with high frequency structures (beyond microwave regime) has a great impact on future high energy frontier machines. We report on the generation of multimegawatt pulsed rf power at 91 GHz in a planar metallic accelerating structure driven by an ultrarelativistic electron bunch train. This slow-wave wakefield device can also be used for high gradient acceleration of electrons with a stable rf phase and amplitude which are controlled by manipulation of the bunch train. To achieve precise control of the rf pulse properties, a two-beam wakefield interferometry method was developed in which the rf pulse, due to the interference of the wakefields from the two bunches, was measured as a function of bunch separation. As a result, measurements of the energy change of a trailing electron bunch as a function of the bunch separation confirmed the interferometry method.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357; W-31-109-ENG-38; SC0009571
OSTI ID:
1248375
Alternate ID(s):
OSTI ID: 1237113
Journal Information:
Physical Review Letters, Vol. 116, Issue 5; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 35 works
Citation information provided by
Web of Science

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Cited By (9)

Non-perturbing THz generation at the Tsinghua University Accelerator Laboratory 31 MeV electron beamline journal September 2018
Design of the Compact Linear Collider main linac accelerating structure made from two halves journal April 2017
Frontiers of beam diagnostics in plasma accelerators: Measuring the ultra-fast and ultra-cold journal May 2018
Generation of High-Power, Reversed-Cherenkov Wakefield Radiation in a Metamaterial Structure journal January 2019
High-Gradient Cherenkov Radiation Based on a New Dielectric-Loaded Waveguide journal November 2018
Design of Planar Millimeter-Wave Metallic Structures for Wakefield Acceleration journal October 2018
Demonstration of sub-luminal propagation of single-cycle terahertz pulses for particle acceleration journal September 2017
Effects of rf magnetic field on upstream dielectric multipactor journal December 2018
Demonstration of sub-luminal propagation of single-cycle terahertz pulses for particle acceleration text January 2016

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