IPAC2017 - List of Authors (Faus-Golfe, A.)

Paper	Title	Page
TUPIK075	ATF2 Beam Halo Collimation System Background and Wakefield Measurements in the 2016 Runs	1864
	N. Fuster-Martínez, A. Faus-Golfe IFIC, Valencia, Spain P. Bambade, A. Faus-Golfe, S. Wallon, R.J. Yang LAL, Orsay, France K. Kubo, T. Okugi, T. Tauchi, N. Terunuma Sokendai, Ibaraki, Japan S. Kuroda KEK, Ibaraki, Japan I. Podadera, F. Toral CIEMAT, Madrid, Spain G.R. White SLAC, Menlo Park, California, USA
	A single vertical beam halo collimation system has been installed in ATF2 in March 2016 to reduce the background in the IP and Post-IP region. In this paper, we present the results of an experimental program carried out during 2016 in order to demonstrate the efficiency of the vertical collimation system and measure the wakefields induced by such a system. Furthermore, a comparison of the measurements of the collimation system wakefield impact with CST PS numerical simulations and analytical calculations is also presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK075
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TUPIK076	Pre-Alignment Techniques Developments and Measurement Results of the Electromagnetic Center of Warm High-Gradient Accelerating Structures	1868
	N. Galindo Munoz, N. Catalán Lasheras CERN, Geneva, Switzerland V.E. Boria DCOM-iTEAM-UPV, Valencia, Spain A. Faus-Golfe IFIC, Valencia, Spain
	Funding: PACMAN is founded under the European Union's 7th Framework Program Marie Curie Actions, grant PITN-GA-2013-606839 In the framework of the PACMAN project we have developed a test set-up to measure the electromagnetic centre of high gradient accelerating structures for alignment purposes. We have demonstrated with previous simulation studies that a resolution of 1 m is possible. The improvements applied on the technique and on the set-up, calibrations and the equipment instrumentation allows the measurement of the electromagnetic centre, with a final precision of 1.09 m in the horizontal plane and 0.58 m in the vertical plane. The experimental measurements and the simulation studies as a support to justify the numbers obtained are presented and discussed.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK076
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THPIK081	Design and Construction of a High-Gradient RF Lab at IFIC-Valencia	4272
SUSPSIK096	use link to see paper's listing under its alternate paper code
	A. Vnuchenko, T. Argyropoulos, C. Blanch Gutiérrez, D. Esperante Pereira, A. Faus-Golfe, J. Giner Navarro IFIC, Valencia, Spain N. Catalán Lasheras, G. McMonagle, I. Syratchev, W. Wuensch CERN, Geneva, Switzerland A. Faus-Golfe LAL, Orsay, France
	The IFIC High-Gradient (HG) Radio Frequency (RF) laboratory is designed to host a high-power infrastructure for testing HG S-band normal-conducting RF accelerating structures and has been under construction since 2016. The main objective of the facility is to develop HG S-band accelerating structures and to contribute to the study of HG phenomena. A particular focus is RF structures for medical hadron therapy applications. The design of the laboratory has been made through collaboration between the IFIC and the CLIC RF group at CERN. The layout is inspired by the scheme of the Xbox-3 test facility at CERN, and it has been adapted to S-band frequency. In this paper we describe the design and construction status of such a facility.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK081
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MOPAB001	Status of the FCC-hh Collimation System	64
	J. Molson, A. Faus-Golfe LAL, Orsay, France R. Bruce, M. Fiascaris, A.M. Krainer, S. Redaelli CERN, Geneva, Switzerland
	Funding: Funding from the European Union's Horizon 2020 research and innovation programme under grant No 654305. The future circular hadron collider (FCC-hh) will have an unprecedented proton beam energy of 50 TeV, and total stored beam energy of 8.4 GJ. We discuss current developments in the collimation system design, and methods with which the challenges faced due to the high energies involved can be mitigated. Finally simulation results of new collimation system designs are presented.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB001
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MOPAB029	Experimental Study of Halo Formation at ATF2	142
SUSPSIK071	use link to see paper's listing under its alternate paper code
	R.J. Yang, P. Bambade, A. Faus-Golfe, V. Kubytskyi, S. Wallon LAL, Orsay, France A. Aryshev, T. Naito KEK, Ibaraki, Japan N. Fuster-Martínez IFIC, Valencia, Spain
	For Accelerator Test Facility 2 (ATF2), as well as other high-intensity accelerators, beam halo has been an important aspect reducing the machine performance and activating the components. It is imperative to clearly understand the mechanisms that lead to halo formation and to test the avail- able theoretical models with an adequate experiment setup. In this paper, the experimental measurement of the beam halo formation from beam gas scattering is presented. The upgrading of an OTR/YAG screen monitor for future halo study is also introduced.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB029
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TUPIK077	Main Achievements of the PACMAN Project for the Alignment at Micrometric Scale of Accelerator Components	1872
	H. Mainaud Durand, K. Artoos, M.C.L. Buzio, D. Caiazza, N. Catalán Lasheras, A. Cherif, I.P. Doytchinov, J.-F. Fuchs, A. Gaddi, N. Galindo Munoz, J. Gayde, S.W. Kamugasa, M. Modena, P. Novotny, S. Russenschuck, C. Sanz, G. Severino, D. Tshilumba, V. Vlachakis, M. Wendt, S. Zorzetti CERN, Geneva, Switzerland A. Faus-Golfe LAL, Orsay, France
	Funding: The research leading to these results has received funding from the European Union's 7th Framework Programme Marie Curie actions, grant agreement PITN-GA-2013-606839. The objectives of the PACMAN* project are to improve the precision and accuracy of the alignment of accelerator components. Two steps of alignment are concerned: the fiducialisation, i.e. the determination of the reference axis of components w.r.t alignment targets, and the initial alignment of components on a common support assembly. The main accelerator components considered for the study are quadrupoles, 15 GHz BPM and RF structures from the Compact LInear Collider (CLIC) project. Different methods have been developed to determine the reference axis of these components with a micrometric accuracy, as well as to determine the position of this reference axis in the coordinate frame of the common support assembly. The tools and methods developed have been validated with success on dedicated test setups using CLIC components. This paper will provide a compilation of the main achievements and results obtained. * PACMAN is an acronym for a study on Particle Accelerator Components' Metrology and Alignment to the Nanometre scale.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK077
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WEOBA1	A Comparison of Interaction Physics for Proton Collimation Systems in Current Simulation Tools	2478
	J. Molson, A. Faus-Golfe LAL, Orsay, France R.B. Appleby, S.C. Tygier UMAN, Manchester, United Kingdom R.J. Barlow IIAA, Huddersfield, United Kingdom R. Bruce, F. Cerutti, A. Ferrari, A. Mereghetti, S. Redaelli, K.N. Sjobak, V. Vlachoudis CERN, Geneva, Switzerland H. Rafique University of Manchester, Manchester, United Kingdom Y. Zou IHEP, Beijing, People's Republic of China
	Funding: The European Circular Energy-Frontier Collider Study (EuroCirCol) project has received funding from the European Union's Horizon 2020 research and innovation programme under grant No 654305. High performance collimation systems are required for current and proposed high energy hadron accelerators in order to protect superconducting magnets and experiments. In order to ensure that the collimation system designs are sufficient and will operate as expected, precision simulation tools are required. This paper discusses the current status of existing collimation system tools, and performs a comparison between codes in order to ensure that the simulated interaction physics between a proton and a collimator jaw is accurate.
	Slides WEOBA1 [7.235 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEOBA1
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THPVA079	First Optics Design and Beam Performance Simulation of PRAE: Platform for Research and Applications With Electrons at Orsay	4637
	A. Faus-Golfe, S. Barsuk, B. Borgo, D. Douillet, M. El Khaldi, L. Garolfi, A. Gonnin, M. Langlet, P. Lepercq, M. Omeich, V. Puill, C. Vallerand LAL, Orsay, France P. Ausset, M. Ben Abdillah, S. Blivet, P. Duchesne, B. Genolini, M. Hoballah, G. Hull, R. Kunne, C. Le Galliard, J. Lesrel, D. Marchand, E. J-M. Voutier IPN, Orsay, France A. Hrybok, A. Pastushenko National Taras Shevchenko University of Kyiv, Radiophysical Faculty, Kiev, Ukraine A. Vnuchenko IFIC, Valencia, Spain
	The PRAE project aims at creating a multidisciplinary R&D facility in the Orsay campus gathering various scientific communities involved in radiobiology, subatomic physics, instrumentation and particle accelerators around an electron accelerator delivering a high-performance beam with energy up to 70 MeV and later 140 MeV, in order to perform a series of unique measurements and future challenging R&D. In addition PRAE will provide a major education and training asset for students and engineers yielding a regional instrument of advanced technology at the heart of the scientific, technological and academic complex of the Paris-Saclay University. In this paper we report the first optics design and performance evaluations of such a multidisciplinary machine, including a first description of future experiments and the required beam instrumentation.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA079
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Paper

Title

Page

ATF2 Beam Halo Collimation System Background and Wakefield Measurements in the 2016 Runs

1864

N. Fuster-Martínez, A. Faus-Golfe
IFIC, Valencia, Spain
P. Bambade, A. Faus-Golfe, S. Wallon, R.J. Yang
LAL, Orsay, France
K. Kubo, T. Okugi, T. Tauchi, N. Terunuma
Sokendai, Ibaraki, Japan
S. Kuroda
KEK, Ibaraki, Japan
I. Podadera, F. Toral
CIEMAT, Madrid, Spain
G.R. White
SLAC, Menlo Park, California, USA

A single vertical beam halo collimation system has been installed in ATF2 in March 2016 to reduce the background in the IP and Post-IP region. In this paper, we present the results of an experimental program carried out during 2016 in order to demonstrate the efficiency of the vertical collimation system and measure the wakefields induced by such a system. Furthermore, a comparison of the measurements of the collimation system wakefield impact with CST PS numerical simulations and analytical calculations is also presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK075

Export •

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

TUPIK076

Pre-Alignment Techniques Developments and Measurement Results of the Electromagnetic Center of Warm High-Gradient Accelerating Structures

1868

N. Galindo Munoz, N. Catalán Lasheras
CERN, Geneva, Switzerland
V.E. Boria
DCOM-iTEAM-UPV, Valencia, Spain
A. Faus-Golfe
IFIC, Valencia, Spain

Funding: PACMAN is founded under the European Union's 7th Framework Program Marie Curie Actions, grant PITN-GA-2013-606839
In the framework of the PACMAN project we have developed a test set-up to measure the electromagnetic centre of high gradient accelerating structures for alignment purposes. We have demonstrated with previous simulation studies that a resolution of 1 m is possible. The improvements applied on the technique and on the set-up, calibrations and the equipment instrumentation allows the measurement of the electromagnetic centre, with a final precision of 1.09 m in the horizontal plane and 0.58 m in the vertical plane. The experimental measurements and the simulation studies as a support to justify the numbers obtained are presented and discussed.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK076

Export •

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

THPIK081

Design and Construction of a High-Gradient RF Lab at IFIC-Valencia

4272

SUSPSIK096

use link to see paper's listing under its alternate paper code

A. Vnuchenko, T. Argyropoulos, C. Blanch Gutiérrez, D. Esperante Pereira, A. Faus-Golfe, J. Giner Navarro
IFIC, Valencia, Spain
N. Catalán Lasheras, G. McMonagle, I. Syratchev, W. Wuensch
CERN, Geneva, Switzerland
A. Faus-Golfe
LAL, Orsay, France

The IFIC High-Gradient (HG) Radio Frequency (RF) laboratory is designed to host a high-power infrastructure for testing HG S-band normal-conducting RF accelerating structures and has been under construction since 2016. The main objective of the facility is to develop HG S-band accelerating structures and to contribute to the study of HG phenomena. A particular focus is RF structures for medical hadron therapy applications. The design of the laboratory has been made through collaboration between the IFIC and the CLIC RF group at CERN. The layout is inspired by the scheme of the Xbox-3 test facility at CERN, and it has been adapted to S-band frequency. In this paper we describe the design and construction status of such a facility.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPIK081

Export •

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

MOPAB001

Status of the FCC-hh Collimation System

64

J. Molson, A. Faus-Golfe
LAL, Orsay, France
R. Bruce, M. Fiascaris, A.M. Krainer, S. Redaelli
CERN, Geneva, Switzerland

Funding: Funding from the European Union's Horizon 2020 research and innovation programme under grant No 654305.
The future circular hadron collider (FCC-hh) will have an unprecedented proton beam energy of 50 TeV, and total stored beam energy of 8.4 GJ. We discuss current developments in the collimation system design, and methods with which the challenges faced due to the high energies involved can be mitigated. Finally simulation results of new collimation system designs are presented.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB001

Export •

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

MOPAB029

Experimental Study of Halo Formation at ATF2

142

SUSPSIK071

use link to see paper's listing under its alternate paper code

R.J. Yang, P. Bambade, A. Faus-Golfe, V. Kubytskyi, S. Wallon
LAL, Orsay, France
A. Aryshev, T. Naito
KEK, Ibaraki, Japan
N. Fuster-Martínez
IFIC, Valencia, Spain

For Accelerator Test Facility 2 (ATF2), as well as other high-intensity accelerators, beam halo has been an important aspect reducing the machine performance and activating the components. It is imperative to clearly understand the mechanisms that lead to halo formation and to test the avail- able theoretical models with an adequate experiment setup. In this paper, the experimental measurement of the beam halo formation from beam gas scattering is presented. The upgrading of an OTR/YAG screen monitor for future halo study is also introduced.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-MOPAB029

Export •

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

TUPIK077

Main Achievements of the PACMAN Project for the Alignment at Micrometric Scale of Accelerator Components

1872

H. Mainaud Durand, K. Artoos, M.C.L. Buzio, D. Caiazza, N. Catalán Lasheras, A. Cherif, I.P. Doytchinov, J.-F. Fuchs, A. Gaddi, N. Galindo Munoz, J. Gayde, S.W. Kamugasa, M. Modena, P. Novotny, S. Russenschuck, C. Sanz, G. Severino, D. Tshilumba, V. Vlachakis, M. Wendt, S. Zorzetti
CERN, Geneva, Switzerland
A. Faus-Golfe
LAL, Orsay, France

Funding: The research leading to these results has received funding from the European Union's 7th Framework Programme Marie Curie actions, grant agreement PITN-GA-2013-606839.
The objectives of the PACMAN* project are to improve the precision and accuracy of the alignment of accelerator components. Two steps of alignment are concerned: the fiducialisation, i.e. the determination of the reference axis of components w.r.t alignment targets, and the initial alignment of components on a common support assembly. The main accelerator components considered for the study are quadrupoles, 15 GHz BPM and RF structures from the Compact LInear Collider (CLIC) project. Different methods have been developed to determine the reference axis of these components with a micrometric accuracy, as well as to determine the position of this reference axis in the coordinate frame of the common support assembly. The tools and methods developed have been validated with success on dedicated test setups using CLIC components. This paper will provide a compilation of the main achievements and results obtained.
* PACMAN is an acronym for a study on Particle Accelerator Components' Metrology and Alignment to the Nanometre scale.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-TUPIK077

Export •

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

WEOBA1

A Comparison of Interaction Physics for Proton Collimation Systems in Current Simulation Tools

2478

J. Molson, A. Faus-Golfe
LAL, Orsay, France
R.B. Appleby, S.C. Tygier
UMAN, Manchester, United Kingdom
R.J. Barlow
IIAA, Huddersfield, United Kingdom
R. Bruce, F. Cerutti, A. Ferrari, A. Mereghetti, S. Redaelli, K.N. Sjobak, V. Vlachoudis
CERN, Geneva, Switzerland
H. Rafique
University of Manchester, Manchester, United Kingdom
Y. Zou
IHEP, Beijing, People's Republic of China

Funding: The European Circular Energy-Frontier Collider Study (EuroCirCol) project has received funding from the European Union's Horizon 2020 research and innovation programme under grant No 654305.
High performance collimation systems are required for current and proposed high energy hadron accelerators in order to protect superconducting magnets and experiments. In order to ensure that the collimation system designs are sufficient and will operate as expected, precision simulation tools are required. This paper discusses the current status of existing collimation system tools, and performs a comparison between codes in order to ensure that the simulated interaction physics between a proton and a collimator jaw is accurate.

Slides WEOBA1 [7.235 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-WEOBA1

Export •

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

THPVA079

First Optics Design and Beam Performance Simulation of PRAE: Platform for Research and Applications With Electrons at Orsay

4637

A. Faus-Golfe, S. Barsuk, B. Borgo, D. Douillet, M. El Khaldi, L. Garolfi, A. Gonnin, M. Langlet, P. Lepercq, M. Omeich, V. Puill, C. Vallerand
LAL, Orsay, France
P. Ausset, M. Ben Abdillah, S. Blivet, P. Duchesne, B. Genolini, M. Hoballah, G. Hull, R. Kunne, C. Le Galliard, J. Lesrel, D. Marchand, E. J-M. Voutier
IPN, Orsay, France
A. Hrybok, A. Pastushenko
National Taras Shevchenko University of Kyiv, Radiophysical Faculty, Kiev, Ukraine
A. Vnuchenko
IFIC, Valencia, Spain

The PRAE project aims at creating a multidisciplinary R&D facility in the Orsay campus gathering various scientific communities involved in radiobiology, subatomic physics, instrumentation and particle accelerators around an electron accelerator delivering a high-performance beam with energy up to 70 MeV and later 140 MeV, in order to perform a series of unique measurements and future challenging R&D. In addition PRAE will provide a major education and training asset for students and engineers yielding a regional instrument of advanced technology at the heart of the scientific, technological and academic complex of the Paris-Saclay University. In this paper we report the first optics design and performance evaluations of such a multidisciplinary machine, including a first description of future experiments and the required beam instrumentation.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2017-THPVA079

Export •

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