Design and test of a superconducting RFQ for heavy ions

I. Ben-Zvi; A. Jain; J. W. Noé; P. Paul; H. Wang; A. Lombardi

doi:10.1016/0168-583X(93)95449-F

Design and test of a superconducting RFQ for heavy ions

I. Ben-Zvi
, A. Jain
, J. W. Noé
, P. Paul
, H. Wang
, A. Lombardi

Physics and Astronomy

Stony Brook University
INFN-LNL

Research output: Contribution to journal › Article › peer-review

Abstract

A prototype SRFQ resonator optimized for a velocity of β=0.03 and a charge to mass ratio ( q M) of 1 6 has been designed, fabricated and tested. This is a short RFQ structure (only 2βλ long) operating at 57.4 MHz. The resonator is made of copper, and a 1.5 μm thick layer of electroplated Pb-2 at.% Sn is used as the superconductor. The electrical characteristics of the resonator derived from detailed 3D numerical simulations using the MAFIA codes, and also from measurements on the actual resonator are described. The multipactoring levels could be processed away with ease. Quality factor (Q) > 1 × 10⁸ is obtained for E_a up to 1 MV/m. Other parameters relevant to superconducting operation are also presented.

Original language	English
Pages (from-to)	711-713
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	79
Issue number	1-4
DOIs	https://doi.org/10.1016/0168-583X(93)95449-F
State	Published - Jun 2 1993

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title = "Design and test of a superconducting RFQ for heavy ions",

abstract = "A prototype SRFQ resonator optimized for a velocity of β=0.03 and a charge to mass ratio ( q M) of 1 6 has been designed, fabricated and tested. This is a short RFQ structure (only 2βλ long) operating at 57.4 MHz. The resonator is made of copper, and a 1.5 μm thick layer of electroplated Pb-2 at.\% Sn is used as the superconductor. The electrical characteristics of the resonator derived from detailed 3D numerical simulations using the MAFIA codes, and also from measurements on the actual resonator are described. The multipactoring levels could be processed away with ease. Quality factor (Q) > 1 × 108 is obtained for Ea up to 1 MV/m. Other parameters relevant to superconducting operation are also presented.",

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T1 - Design and test of a superconducting RFQ for heavy ions

AU - Ben-Zvi, I.

AU - Jain, A.

AU - Noé, J. W.

AU - Paul, P.

AU - Wang, H.

AU - Lombardi, A.

PY - 1993/6/2

Y1 - 1993/6/2

N2 - A prototype SRFQ resonator optimized for a velocity of β=0.03 and a charge to mass ratio ( q M) of 1 6 has been designed, fabricated and tested. This is a short RFQ structure (only 2βλ long) operating at 57.4 MHz. The resonator is made of copper, and a 1.5 μm thick layer of electroplated Pb-2 at.% Sn is used as the superconductor. The electrical characteristics of the resonator derived from detailed 3D numerical simulations using the MAFIA codes, and also from measurements on the actual resonator are described. The multipactoring levels could be processed away with ease. Quality factor (Q) > 1 × 108 is obtained for Ea up to 1 MV/m. Other parameters relevant to superconducting operation are also presented.

AB - A prototype SRFQ resonator optimized for a velocity of β=0.03 and a charge to mass ratio ( q M) of 1 6 has been designed, fabricated and tested. This is a short RFQ structure (only 2βλ long) operating at 57.4 MHz. The resonator is made of copper, and a 1.5 μm thick layer of electroplated Pb-2 at.% Sn is used as the superconductor. The electrical characteristics of the resonator derived from detailed 3D numerical simulations using the MAFIA codes, and also from measurements on the actual resonator are described. The multipactoring levels could be processed away with ease. Quality factor (Q) > 1 × 108 is obtained for Ea up to 1 MV/m. Other parameters relevant to superconducting operation are also presented.

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

IS - 1-4

ER -

Design and test of a superconducting RFQ for heavy ions

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