IPAC2017 - List of Authors (Mereu, P.)

Paper	Title	Page
THPIK017	Field Uniformity Preservation Strategies for the ESS DTL: Approach and Simulations	4139
	G.S. Mauro, F. Grespan, A. Palmieri, A. Pisent INFN/LNL, Legnaro (PD), Italy P. Mereu, M. Mezzano, C. Mingioni, M. Nenni INFN-Torino, Torino, Italy
	The Drift Tube Linac (DTL) of the European Spallation Source (ESS) is designed to operate at 352.2 MHz with a duty cycle of 4 % (3 ms pulse length, 14 Hz repetition period) and will accelerate a proton beam of 62.5 mA pulse peak current from 3.62 to 90 MeV. This paper presents the approach taken in order to preserve field flatness of DTL Tanks. This strategy required a set of simulations and consequent choices about RF design of DTL cells, RF coupler tuning and compensation, cooling of the DTL cells. Outcomes of these simulations and the experimental verifications of this approach are then explained.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK017
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THPIK032	Installation and Low Power Test of IFMIF-EVEDA RFQ at Rokkasho Site	4162
	E. Fagotti, L. Antoniazzi, A. Baldo, A. Battistello, L. Bellan, P. Bottin, M. Comunian, A. Conte, L. Ferrari, M.G. Giacchini, F. Grespan, M. Montis, A. Palmieri, A. Pisent, D. Scarpa INFN/LNL, Legnaro (PD), Italy D. Agguiaro, A.G. Colombo INFN- Sez. di Padova, Padova, Italy F. Borotto Dalla Vecchia, G. Dughera, G. Giraudo, P. Mereu, R. Panero INFN-Torino, Torino, Italy P. Cara, R. Heidinger Fusion for Energy, Garching, Germany M. Furini, C. Gessi INFN-Bologna, Bologna, Italy D. Gex F4E, Germany R. Ichimiya, Y. Ikeda, A. Kasugai, K. Kondo, S. O'hira, K. Sakamoto, T. Shinya, M. Sugimoto QST, Aomori, Japan J. Knaster, A. Marqueta, G. Pruneri, F. Scantamburlo IFMIF/EVEDA, Rokkasho, Japan
	The IFMIF-EVEDA RFQ is composed of 18 modules for a total length of 9.8 m and is designed to accelerate the 125 mA D⁺ beam up to 5 MeV at the frequency of 175 MHz. The RFQ is subdivided into three Super-Modules of six modules each. The Super-Modules were shipped to Rokkasho (Japan) at the beginning of 2016, pre-assembled 3 m far from the final location and tuned to reach target field flatness requirements. Just after conclusion of injector commissioning, the tuned RFQ was disassembled, moved and reassembled in the final location. After confirmation that field flatness was not affected by this movement, high power couplers were installed and tuned and all the structure was baked. Assembling, tuning and coupling results will be presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK032
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THPVA046	Thermo Mechanical Study of the ESS DTL	4537
	P. Mereu, M. Mezzano, C. Mingioni, M. Nenni INFN-Torino, Torino, Italy F. Grespan, A. Palmieri, A. Pisent INFN/LNL, Legnaro (PD), Italy
	The Drift Tube Linac (DTL) of the European Spallation Source (ESS) is designed to operate at 352.2 MHz with a duty cycle of 4 % (3 ms pulse length, 14 Hz repetition period) and will accelerate a proton beam of 62.5 mA pulse peak current from 3.62 to 90 MeV. In this paper the main issues regarding the thermo-mechanical 3D details of the DTL are addressed and a Computational Fluid Dynamics (CFD) model is proposed and validated against the experimental data. The results of these simulations are used to properly design the DTL cooling system.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA046
Export •	reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

Paper

Title

Page

Field Uniformity Preservation Strategies for the ESS DTL: Approach and Simulations

4139

G.S. Mauro, F. Grespan, A. Palmieri, A. Pisent
INFN/LNL, Legnaro (PD), Italy
P. Mereu, M. Mezzano, C. Mingioni, M. Nenni
INFN-Torino, Torino, Italy

The Drift Tube Linac (DTL) of the European Spallation Source (ESS) is designed to operate at 352.2 MHz with a duty cycle of 4 % (3 ms pulse length, 14 Hz repetition period) and will accelerate a proton beam of 62.5 mA pulse peak current from 3.62 to 90 MeV. This paper presents the approach taken in order to preserve field flatness of DTL Tanks. This strategy required a set of simulations and consequent choices about RF design of DTL cells, RF coupler tuning and compensation, cooling of the DTL cells. Outcomes of these simulations and the experimental verifications of this approach are then explained.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK017

Export •

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

THPIK032

Installation and Low Power Test of IFMIF-EVEDA RFQ at Rokkasho Site

4162

E. Fagotti, L. Antoniazzi, A. Baldo, A. Battistello, L. Bellan, P. Bottin, M. Comunian, A. Conte, L. Ferrari, M.G. Giacchini, F. Grespan, M. Montis, A. Palmieri, A. Pisent, D. Scarpa
INFN/LNL, Legnaro (PD), Italy
D. Agguiaro, A.G. Colombo
INFN- Sez. di Padova, Padova, Italy
F. Borotto Dalla Vecchia, G. Dughera, G. Giraudo, P. Mereu, R. Panero
INFN-Torino, Torino, Italy
P. Cara, R. Heidinger
Fusion for Energy, Garching, Germany
M. Furini, C. Gessi
INFN-Bologna, Bologna, Italy
D. Gex
F4E, Germany
R. Ichimiya, Y. Ikeda, A. Kasugai, K. Kondo, S. O'hira, K. Sakamoto, T. Shinya, M. Sugimoto
QST, Aomori, Japan
J. Knaster, A. Marqueta, G. Pruneri, F. Scantamburlo
IFMIF/EVEDA, Rokkasho, Japan

The IFMIF-EVEDA RFQ is composed of 18 modules for a total length of 9.8 m and is designed to accelerate the 125 mA D⁺ beam up to 5 MeV at the frequency of 175 MHz. The RFQ is subdivided into three Super-Modules of six modules each. The Super-Modules were shipped to Rokkasho (Japan) at the beginning of 2016, pre-assembled 3 m far from the final location and tuned to reach target field flatness requirements. Just after conclusion of injector commissioning, the tuned RFQ was disassembled, moved and reassembled in the final location. After confirmation that field flatness was not affected by this movement, high power couplers were installed and tuned and all the structure was baked. Assembling, tuning and coupling results will be presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK032

Export •

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

THPVA046

Thermo Mechanical Study of the ESS DTL

4537

P. Mereu, M. Mezzano, C. Mingioni, M. Nenni
INFN-Torino, Torino, Italy
F. Grespan, A. Palmieri, A. Pisent
INFN/LNL, Legnaro (PD), Italy

The Drift Tube Linac (DTL) of the European Spallation Source (ESS) is designed to operate at 352.2 MHz with a duty cycle of 4 % (3 ms pulse length, 14 Hz repetition period) and will accelerate a proton beam of 62.5 mA pulse peak current from 3.62 to 90 MeV. In this paper the main issues regarding the thermo-mechanical 3D details of the DTL are addressed and a Computational Fluid Dynamics (CFD) model is proposed and validated against the experimental data. The results of these simulations are used to properly design the DTL cooling system.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA046

Export •

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