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Title: Generation of Ramped Current Profiles in Relativistic Electron Beams Using Wakefields in Dielectric Structures

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [4];  [4];  [4];  [2]
  1. Univ. of California, Los Angeles, CA (United States). Department of Physics and Astronomy; RadiaBeam Technologies, Santa Monica, CA (United States)
  2. Univ. of California, Los Angeles, CA (United States). Department of Physics and Astronomy
  3. RadiaBeam Technologies, Santa Monica, CA (United States)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Accelerator Test Facility
+ Show Author Affiliations

We show that temporal pulse tailoring of charged-particle beams is essential to optimize efficiency in collinear wakefield acceleration schemes. In this Letter, we demonstrate a novel phase space manipulation method that employs a beam wakefield interaction in a dielectric structure, followed by bunch compression in a permanent magnet chicane, to longitudinally tailor the pulse shape of an electron beam. This compact, passive, approach was used to generate a nearly linearly ramped current profile in a relativistic electron beam experiment carried out at the Brookhaven National Laboratory Accelerator Test Facility. Here, we report on these experimental results including beam and wakefield diagnostics and pulse profile reconstruction techniques.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
SC0012704; SC0011271; SC0009914
OSTI ID:
1376088
Alternate ID(s):
OSTI ID: 1342618
Report Number(s):
BNL-113852-2017-JA; R&D Project: KBCH139; KB0202011
Journal Information:
Physical Review Letters, Vol. 118, Issue 5; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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conference January 2016
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Cited By (6)

Single-Shot Characterization of High Transformer Ratio Wakefields in Nonlinear Plasma Acceleration text January 2019
Single Shot Characterization of High Transformer Ratio Wakefields in Nonlinear Plasma Acceleration journal January 2020
Passive Ballistic Microbunching of Nonultrarelativistic Electron Bunches Using Electromagnetic Wakefields in Dielectric-Lined Waveguides journal January 2019
Passive Ballistic Microbunching of Nonultrarelativistic Electron Bunches Using Electromagnetic Wakefields in Dielectric-Lined Waveguides text January 2019
Passive Ballistic Microbunching of Non-Ultrarelativistic Electron Bunches using Electromagnetic Wakefields in Dielectric-Lined Waveguides text January 2018
Driver-witness electron beam acceleration in dielectric mm-scale capillaries journal May 2018

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