| Paper |
Title |
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| THPCAV005 |
Status of the INFN-LASA Contribution to the PIP-II Linac |
787 |
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- R. Paparella, M. Bertucci, M. Bonezzi, A. Bosotti, D. Cardelli, A. D’Ambros, A.T. Grimaldi, P. Michelato, L. Monaco, D. Sertore
INFN/LASA, Segrate (MI), Italy
- C. Pagani
Università degli Studi di Milano & INFN, Segrate, Italy
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The international effort for the PIP-II project at Fermilab has been joined by INFN with its planned contribution to the PIP-II proton linac in the low-beta section. INFN-LASA is finalizing its commitment to deliver in kind the full set of the LB650 cavities, 36 plus spares resonators with 5-cell cavities at 650 MHz and geometrical beta 0.61. All cavities, designed by INFN-LASA, will be produced and surface treated in industry to reach the unprecedented performances required by PIP-II, qualified through vertical cold test at state-of-the art infrastructures and delivered as ready for the linac at the string assembly site. The status of INFN contribution to PIP-II, the development of infrastructures and prototypes as well as the ongoing activities toward the start of series production are summarized in this paper.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-SRF2021-THPCAV005
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| About • |
Received ※ 21 June 2021 — Accepted ※ 09 October 2021 — Issue date ※ 08 May 2022 |
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| THPCAV012 |
ESS Medium Beta Cavities at INFN LASA |
815 |
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- D. Sertore, M. Bertucci, M. Bonezzi, A. Bosotti, D. Cardelli, A. D’Ambros, A.T. Grimaldi, L. Monaco, R. Paparella, G.M. Zaggia
INFN/LASA, Segrate (MI), Italy
- C. Pagani
Università degli Studi di Milano & INFN, Segrate, Italy
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INFN Milano - LASA contributes in-kind to the ESS ERIC Superconducting Linac supplying 36 cavities for the Medium Beta section of the proton accelerator. All the cavities have been mechanical fabricated, BCP treated and, for most of them, also qualified with vertical test at cold at DESY. We present the result of the cavities already qualified and delivered to CEA, discussing the lessons learnt so far. For remaining cavities, we discuss the actions taken and the plans foreseen to recover them to full specifications.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-SRF2021-THPCAV012
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| About • |
Received ※ 21 June 2021 — Revised ※ 01 September 2021 — Accepted ※ 10 October 2021 — Issue date ※ 23 November 2021 |
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| THPCAV014 |
Development of High-Q Treatments for PIP-II Prototype Cavities at LASA-INFN |
820 |
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- M. Bertucci, A. Bosotti, A. D’Ambros, A.T. Grimaldi, P. Michelato, L. Monaco, C. Pagani, R. Paparella, D. Sertore
INFN/LASA, Segrate (MI), Italy
- A. Gresele, A. Torri
Ettore Zanon S.p.A., Nuclear Division, Schio, Italy
- C. Pagani
Università degli Studi di Milano & INFN, Segrate, Italy
- M. Rizzi
Ettore Zanon S.p.A., Schio, Italy
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INFN-LASA is currently involved in the production of PIP-II low-beta cavity prototypes. The main challenge of this activity is to develop a state-of-the art surface treatment recipe on such cavity geometry, to achieve the high-Q target required for cavity operation in the linac. This paper reports the status of cavity treatments development and the first cold test results of a single-cell cavity. This cavity has undergone a baseline treatment based on Electropolishing as bulk removal step. Being this test successful, a strategy for pushing the cavities towards higher performances is here proposed.
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| DOI • |
reference for this paper
※ doi:10.18429/JACoW-SRF2021-THPCAV014
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| About • |
Received ※ 21 June 2021 — Accepted ※ 01 March 2022 — Issue date ※ 01 May 2022 |
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