Publications: Journal article

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BB = TYPE OF THE DOCUMENT:

21 = JOURNAL ARTICLE
22 = ABSTRACT
23 = PROCEEDING
25 = INTERNAL TASK NOTE
27 = USEFUL DOCUMENTS
28 = CONSORTIUM AGREEMENT
29 = FINANCIAL DOCUMENTS
30 = CONTRACT
31 = ANNUAL REPORTS
32 = INTERIM ANNUAL REPORTS
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34 = FOUR MONTH REPORTS

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DDDD = DOCUMENT NUMBER

Splitting of high power, cw proton beams

14/09/2007 -Task : TASK 7
Author(s) :Alberto Facco* and Rita Paparella INFN-Laboratori Nazionali di Legnaro, viale dell’Universita`, 2, I-35020 Legnaro, Padova, Italy; Dan Berkovits SOREQ NRC, Yavne 81800, Israel; Isao Yamane KEK, High Energy Accelerator Research Organization, Oho 1-1, Tsukuba, Ibaraki 305, Japan.

A simple method for splitting a high power, continuous wave (cw) proton beam in two or more branches with low losses has been developed in the framework of the EURISOL (European Isotope Separation On-Line adioactive Ion Beam Facility) design study. The aim of the system is to deliver up to 4 MW of H beam to the main radioactive ion beam production target, and up to 100 kWof proton beams to three more targets, simultaneously. A three-step method is used, which includes magnetic neutralization of a fraction of the main H- beam, magnetic splitting of H- and H0, and stripping of H0 to H+. The method allows slow raising and individual fine adjustment of the beam intensity in each branch.
Low- and intermediate-beta, 352 MHz superconducting half-wave resonators for high power hadron acceleration

09/11/2006 -Task : TASK 7
Author(s) :A. Facco , F. Scarpa, and D. Zenere INFN-LNL, viale dell\'Università 2, I-35020 Legnaro (Padova) Italy R. Losito CERN, Geneva, Switzerland V. Zvyagintsev TRIUMF, Vancouver, Canada

Two prototypes of superconducting, 352 MHz coaxial half-wave resonators with beta = 0.17 and beta = 0.31 have been designed, constructed, and tested at INFN-LNL, in the framework of the SPES and EURISOL DS projects. Main features of these double-wall, 2-gap structures are compactness, mechanical stability, and easy installation in different kinds of cryostats. Their acceleration capabilities are similar to the ones of Spoke resonators with similar beta. These cavities are being developed for acceleration of high power hadron beams in the 5–100 MeV/u energy range.
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