A cooler-buncher for the N=126 factory at Argonne National Laboratory

A. A. Valverde*, M. Brodeur, J. A. Clark, Daniel David Lascar, G. Savard

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

The N=126 factory currently under construction at Argonne National Laboratory's ATLAS facility will make use of multi-nucleon transfer reactions to produce nuclei around the N=126 shell closure that are of interest for the study of the rapid neutron capture process and are not available in sufficient quantities using common particle-fragmentation, target-fragmentation, or fission production techniques. As part of this facility, a radio frequency quadrupole (RFQ) buncher will cool and accumulate the beam, converting a high-emittance, continuous beam into a low-emittance bunched beam suitable for trapping. Here, the construction of the RFQ cooler-buncher, based on the design used at the National Superconducting Cyclotron Laboratory's BECOLA and EBIT cooler-bunchers, will be discussed. This design features injection optics optimized to maximize acceptance, separated cooling and bunching regions, and a simplified RFQ electrode construction.

Fingerprint

coolers
industrial plants
Industrial plants
radio frequencies
quadrupoles
emittance
fragmentation
bunching
Cyclotrons
acceptability
closures
cyclotrons
fission
Optics
Neutrons
trapping
optics
injection
Cooling
cooling

Keywords

  • Beam cooling
  • Beam transport
  • Radioactive ion beams
  • Radiofrequency quadrupole

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

@article{9d25b65e7c5e4a939c0ed6dc83bb27d7,
title = "A cooler-buncher for the N=126 factory at Argonne National Laboratory",
abstract = "The N=126 factory currently under construction at Argonne National Laboratory's ATLAS facility will make use of multi-nucleon transfer reactions to produce nuclei around the N=126 shell closure that are of interest for the study of the rapid neutron capture process and are not available in sufficient quantities using common particle-fragmentation, target-fragmentation, or fission production techniques. As part of this facility, a radio frequency quadrupole (RFQ) buncher will cool and accumulate the beam, converting a high-emittance, continuous beam into a low-emittance bunched beam suitable for trapping. Here, the construction of the RFQ cooler-buncher, based on the design used at the National Superconducting Cyclotron Laboratory's BECOLA and EBIT cooler-bunchers, will be discussed. This design features injection optics optimized to maximize acceptance, separated cooling and bunching regions, and a simplified RFQ electrode construction.",
keywords = "Beam cooling, Beam transport, Radioactive ion beams, Radiofrequency quadrupole",
author = "Valverde, {A. A.} and M. Brodeur and Clark, {J. A.} and Lascar, {Daniel David} and G. Savard",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.nimb.2019.04.070",
language = "English (US)",
journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",
issn = "0168-583X",
publisher = "Elsevier",

}

TY - JOUR

T1 - A cooler-buncher for the N=126 factory at Argonne National Laboratory

AU - Valverde, A. A.

AU - Brodeur, M.

AU - Clark, J. A.

AU - Lascar, Daniel David

AU - Savard, G.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - The N=126 factory currently under construction at Argonne National Laboratory's ATLAS facility will make use of multi-nucleon transfer reactions to produce nuclei around the N=126 shell closure that are of interest for the study of the rapid neutron capture process and are not available in sufficient quantities using common particle-fragmentation, target-fragmentation, or fission production techniques. As part of this facility, a radio frequency quadrupole (RFQ) buncher will cool and accumulate the beam, converting a high-emittance, continuous beam into a low-emittance bunched beam suitable for trapping. Here, the construction of the RFQ cooler-buncher, based on the design used at the National Superconducting Cyclotron Laboratory's BECOLA and EBIT cooler-bunchers, will be discussed. This design features injection optics optimized to maximize acceptance, separated cooling and bunching regions, and a simplified RFQ electrode construction.

AB - The N=126 factory currently under construction at Argonne National Laboratory's ATLAS facility will make use of multi-nucleon transfer reactions to produce nuclei around the N=126 shell closure that are of interest for the study of the rapid neutron capture process and are not available in sufficient quantities using common particle-fragmentation, target-fragmentation, or fission production techniques. As part of this facility, a radio frequency quadrupole (RFQ) buncher will cool and accumulate the beam, converting a high-emittance, continuous beam into a low-emittance bunched beam suitable for trapping. Here, the construction of the RFQ cooler-buncher, based on the design used at the National Superconducting Cyclotron Laboratory's BECOLA and EBIT cooler-bunchers, will be discussed. This design features injection optics optimized to maximize acceptance, separated cooling and bunching regions, and a simplified RFQ electrode construction.

KW - Beam cooling

KW - Beam transport

KW - Radioactive ion beams

KW - Radiofrequency quadrupole

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

SN - 0168-583X

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