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Source-to-accelerator quadrupole matching section for a compact linear accelerator.

P A Seidl1, A Persaud1, W Ghiorso1

  • 1Ernest Orlando Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA.

The Review of Scientific Instruments
|June 6, 2018
PubMed
Summary
This summary is machine-generated.

This study integrates radio-frequency (RF) acceleration units and electrostatic focusing quadrupoles (ESQs) into a compact accelerator. The novel matching section improves beam current capture and stable transport for advanced particle acceleration.

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Area of Science:

  • Physics
  • Engineering
  • Particle Accelerators

Background:

  • Previously, individual components of a compact radio-frequency (RF) accelerator structure, including acceleration units and focusing elements, were presented.
  • A need exists for integrated accelerator structures that efficiently couple ion sources to acceleration stages.

Purpose of the Study:

  • To combine previously demonstrated RF acceleration units and electrostatic focusing quadrupoles (ESQs) into a functional compact accelerator structure.
  • To develop and test a matching section for improved beam current capture and stable transport.

Main Methods:

  • Fabrication of a matching section using six electrostatic quadrupoles (ESQs) via 3D-printing techniques.
  • Integration of the matching section between an ion source extraction grid and RF-acceleration units.
  • Assembly of an ESQ doublet between two RF-acceleration units.

Main Results:

  • Successful integration of a matching section and RF-acceleration units into a working accelerator.
  • Demonstration of improved beam current capture and matching to stable transport conditions.
  • Presentation of data from an integrated accelerator system.

Conclusions:

  • The integrated accelerator structure, featuring a 3D-printed ESQ matching section, is functional.
  • The developed matching section enhances beam transport stability and current capture efficiency.
  • This work represents a significant step towards compact and efficient RF accelerator systems.