IPAC2018 - List of Authors (Barquest, B.)

Paper	Title	Page
THPAL112	RF Matching Circuit for CANREB RFQ	3902
	T. Au, B. Barquest, J.J. Keir, V. Zvyagintsev TRIUMF, Vancouver, Canada
	A RF matching circuit has been developed to provide two phase RF voltage of 1.2 kVpp at 3 MHz and 6 MHz for the CANREB RFQ structure with an equivalent capacitive load of 300 pF. The RF matching circuit utilizes pi-network with two phase transformer. Beyond RF drive the CANREB structure requires pulse DC bias with amplitude up to 500 V. Results of development and testing of RF matching circuit and filters are presented in this paper.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPAL112
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THPAL116	Development and Installation of the CANREB RFQ Buncher at TRIUMF	3914
	B. Barquest, F. Ames, T. Au, L. Graham, M.R. Pearson, V. Zvyagintsev TRIUMF, Vancouver, Canada J. Bale, J. Dilling, R. Kruecken, Y. Lan UBC & TRIUMF, Vancouver, British Columbia, Canada G. Gwinner University of Manitoba, Manitoba, Canada N. Janzen, R.A. Simpson UW/Physics, Waterloo, Ontario, Canada R. Kanungo Saint Mary's University, Halifax, Canada
	Funding: TRIUMF receives federal funding via the National Research Council of Canada. CANREB is funded by the Canada Foundation for Innovation (CFI), the Provinces NS, MB and TRIUMF. Pure, intense rare isotope beams at a wide range of energies are crucial to the nuclear science programs at TRIUMF. The CANREB project will deliver a high resolution spectrometer (HRS) for beam purification, and a charge breeding system consisting of a radiofrequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion source (EBIS), and a Nier-type spectrometer to prepare the beam for post-acceleration. Bunching the beam prior to charge breeding will significantly enhance the efficiency of the EBIS. The RFQ buncher will accept continuous §I{60}{keV} rare isotope beams from the ARIEL or ISAC production targets and efficiently deliver low emittance bunched beams. A pulsed drift tube (PDT) will adjust the energy of the bunched beam for injection into the EBIS to match the acceptance of the post-accelerating RFQ. Ion optical simulations were carried out to inform the design of the RFQ buncher and PDT. Simulations indicate that delivery of up to 10⁷~ions per bunch with high efficiency is possible. Experience with previous beam bunchers was also brought to bear in the design effort. Installation of the RFQ is under way, and tests with offline beam are expected to be performed in late 2018.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPAL116
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

RF Matching Circuit for CANREB RFQ

3902

T. Au, B. Barquest, J.J. Keir, V. Zvyagintsev
TRIUMF, Vancouver, Canada

A RF matching circuit has been developed to provide two phase RF voltage of 1.2 kVpp at 3 MHz and 6 MHz for the CANREB RFQ structure with an equivalent capacitive load of 300 pF. The RF matching circuit utilizes pi-network with two phase transformer. Beyond RF drive the CANREB structure requires pulse DC bias with amplitude up to 500 V. Results of development and testing of RF matching circuit and filters are presented in this paper.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPAL112

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

THPAL116

Development and Installation of the CANREB RFQ Buncher at TRIUMF

3914

B. Barquest, F. Ames, T. Au, L. Graham, M.R. Pearson, V. Zvyagintsev
TRIUMF, Vancouver, Canada
J. Bale, J. Dilling, R. Kruecken, Y. Lan
UBC & TRIUMF, Vancouver, British Columbia, Canada
G. Gwinner
University of Manitoba, Manitoba, Canada
N. Janzen, R.A. Simpson
UW/Physics, Waterloo, Ontario, Canada
R. Kanungo
Saint Mary's University, Halifax, Canada

Funding: TRIUMF receives federal funding via the National Research Council of Canada. CANREB is funded by the Canada Foundation for Innovation (CFI), the Provinces NS, MB and TRIUMF.
Pure, intense rare isotope beams at a wide range of energies are crucial to the nuclear science programs at TRIUMF. The CANREB project will deliver a high resolution spectrometer (HRS) for beam purification, and a charge breeding system consisting of a radiofrequency quadrupole (RFQ) beam cooler and buncher, an electron beam ion source (EBIS), and a Nier-type spectrometer to prepare the beam for post-acceleration. Bunching the beam prior to charge breeding will significantly enhance the efficiency of the EBIS. The RFQ buncher will accept continuous §I{60}{keV} rare isotope beams from the ARIEL or ISAC production targets and efficiently deliver low emittance bunched beams. A pulsed drift tube (PDT) will adjust the energy of the bunched beam for injection into the EBIS to match the acceptance of the post-accelerating RFQ. Ion optical simulations were carried out to inform the design of the RFQ buncher and PDT. Simulations indicate that delivery of up to 10⁷~ions per bunch with high efficiency is possible. Experience with previous beam bunchers was also brought to bear in the design effort. Installation of the RFQ is under way, and tests with offline beam are expected to be performed in late 2018.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPAL116

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)