DESIGN AND TEST OF A SUPERCONDUCTING RFQ FOR HEAVY-IONS

Authors
BENZVI I JAIN A NOE JW PAUL P WANG H LOMBARDI A
Citation
I. Benzvi et al., DESIGN AND TEST OF A SUPERCONDUCTING RFQ FOR HEAVY-IONS, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 79(1-4), 1993, pp. 711-713
Citations number
5
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
79
Issue
1-4
Year of publication
1993
Pages
711 - 713
Database
ISI
SICI code
0168-583X(1993)79:1-4<711:DATOAS>2.0.ZU;2-A
Abstract
A prototype SRFQ resonator optimized for a velocity of beta = 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 2betalambda long) operati ng at 57.4 MHz. The resonator is made of copper, and a 1.5 mum thick l ayer of electroplated Pb-2 at.% Sn is used as the superconductor. The electrical characteristics of the resonator derived from detailed 3D n umerical simulations using the MAFIA codes, and also from measurements on the actual resonator are described. The multipactoring levels coul d be processed away with ease. Quality factor (Q) > 1 x 10(8) is obtai ned for E(a) UP to 1 MV/m. Other parameters relevant to superconductin g operation are also presented.