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Title: Source-to-accelerator quadrupole matching section for a compact linear accelerator

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.5023415· OSTI ID:1458510
 [1]; ORCiD logo [1];  [1];  [1];  [1];  [2];  [2];  [1]
  1. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  2. Cornell Univ., Ithaca, NY (United States). SonicMEMS Lab.
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Recently, we presented a new approach for a compact radio-frequency (RF) accelerator structure and demonstrated the functionality of the individual components: acceleration units and focusing elements. In this paper, we combine these units to form a working accelerator structure: a matching section between the ion source extraction grids and the RF-acceleration unit and electrostatic focusing quadrupoles between successive acceleration units. The matching section consists of six electrostatic quadrupoles (ESQs) fabricated using 3D-printing techniques. The matching section enables us to capture more beam current and to match the beam envelope to conditions for stable transport in an acceleration lattice. We present data from an integrated accelerator consisting of the source, matching section, and an ESQ doublet sandwiched between two RF-acceleration units.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
Grant/Contract Number:
AC02-05CH11231; AC0205CH11231
OSTI ID:
1458510
Alternate ID(s):
OSTI ID: 1436910
Journal Information:
Review of Scientific Instruments, Vol. 89, Issue 5; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

References (9)

RF Linear Accelerators book January 2008
Staging of RF-accelerating Units in a MEMS-based Ion Accelerator journal January 2017
i g u n −A program for the simulation of positive ion extraction including magnetic fields journal April 1992
Development and testing of a pulsed helium ion source for probing materials and warm dense matter studies journal February 2016
MEQALAC: A 1-MeV multichannel rf-accelerator for light ions journal February 1989
A compact linear accelerator based on a scalable microelectromechanical-system RF-structure journal June 2017
Conceptual design of the DEMO neutral beam injectors: main developments and R&D achievements journal March 2017
Theory and Design of Charged Particle Beams book January 1994
Theory and Design of Charged Particle Beams journal June 1995

Cited By (3)

Retrospective of the ARPA-E ALPHA Fusion Program journal October 2019
Demonstration of waferscale voltage amplifier and electrostatic quadrupole focusing array for compact linear accelerators journal May 2019
Retrospective of the ARPA-E ALPHA fusion program text January 2019

Figures / Tables (10)

FIG. 1(p. 3)figure FIG. 1
TABLE I(p. 3)table TABLE I
FIG. 2(p. 4)figure FIG. 2
FIG. 3(p. 4)figure FIG. 3
FIG. 4(p. 4)figure FIG. 4
FIG. 5(p. 4)figure FIG. 5
FIG. 6(p. 5)figure FIG. 6
FIG. 7(p. 5)figure FIG. 7
FIG. 8(p. 6)figure FIG. 8
FIG. 9(p. 6)figure FIG. 9

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY