IPAC2013 - List of Authors (Perillo-Marcone, A.)

Paper	Title	Page
THPFI059	Robustness Test of a Silicon Strip Crystal for Crystal-assisted Collimation Studies in the LHC	3427
	A. Lechner, J. Blanco Sancho, F. Burkart, M. Calviani, M. Di Castro, Y. Gavrikov, J. Lendaro, F. Loprete, R. Losito, C. Maglioni, A. Masi, S. Montesano, A. Perillo-Marcone, P.S. Roguet, W. Scandale, D. Wollmann CERN, Geneva, Switzerland J. Blanco Sancho EPFL, Lausanne, Switzerland F. Burkart IAP, Frankfurt am Main, Germany Y. Gavrikov PNPI, Gatchina, Leningrad District, Russia V. Guidi, A. Mazzolari INFN-Ferrara, Ferrara, Italy V. Guidi, A. Mazzolari UNIFE, Ferrara, Italy W. Scandale LAL, Orsay, France
	Over the past years, the UA9 experiment has successfully demonstrated the viability of enhancing the collimation efficiency of proton and ion beams in the SPS by means of bent crystals. An extension of UA9 to the LHC has been recently approved. The conditions imposed by the LHC operational environment, in particular the tremendous energy density of the beam, require a reliable understanding of the crystal integrity in view of potential accident scenarios such as an asynchronous beam dump. For this purpose, irradiation tests have been performed at the CERN-HiRadMat facility to examine the mechanical strength of a silicon strip crystal in case of direct beam impact. The tests were carried out using a 440 GeV proton beam of 0.5 mm transverse size. The crystal, 3 mm long in beam direction, was exposed to a total of 210¹⁴ protons, with individual pulse intensities reaching up to 310¹³. First visual inspections reveal no macroscopic damage to the crystal. Complementary post-irradiation tests are foreseen to assess microscopic lattice damage as well as the degradation of the channelling efficiency. On behalf of the UA9 Collaboration.

THPFI062	Design of Air-cooled Beam Dump for Extraction Line of PS Booster	3436
	A. Perillo-Marcone, T. Antonakakis, M. Battistin, M.A. Czapski, G.W. Mason, E.M. Nowak, A. Sarrió Martínez, S. Sgobba, V. Venturi, V. Vlachoudis CERN, Geneva, Switzerland
	A new beam dump has been designed, which withstands the future proton beam extracted from the PS Booster at CERN, consisting of up to 10¹⁴ protons per pulse at 2 GeV after its upgrade in 2018/2019. In order to be able to efficiently release the deposited heat, the new dump will be made out of a single cylindrical block of a copper alloy and be cooled by forced ventilation. In order to determine the energy density distribution deposited by the beam in the dump, Monte Carlo simulations were performed using FLUKA, and thermo-mechanical analyses carried out by importing the energy density into Ansys. In addition, CFD simulations of the airflow were carried out in order to accurately estimate the heat transfer convection coefficient on the surface of the dump. In this paper we describe the design process and highlight the constraints of integrating a new dump for increased beam power into the existing facility.

THPWO078	Status of the Upgrade of the CERN PS Booster	3939
	K. Hanke, O. Aberle, M. E. Angoletta, W. Bartmann, S. Bartolome, E. Benedetto, C. Bertone, A. Blas, P. Bonnal, J. Borburgh, D. Bozzini, A.C. Butterworth, C. Carli, E. Carlier, J.R.T. Cole, P. Dahlen, M. Delonca, T. Dobers, A. Findlay, R. Froeschl, J. Hansen, D. Hay, S. Jensen, J.-M. Lacroix, P. Le Roux, L.A. Lopez Hernandez, C. Maglioni, A. Masi, G.W. Mason, S.J. Mathot, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, S. Olek, M.M. Paoluzzi, A. Perillo-Marcone, S. Pittet, B. Puccio, V. Raginel, B. Riffaud, I. Ruehl, A. Sarrió Martínez, J. Tan, B. Todd, V. Venturi, W.J.M. Weterings CERN, Geneva, Switzerland
	The CERN PS Booster (PSB) is presently undergoing an ambitious consolidation and upgrade program within the frame of the LHC Injectors Upgrade (LIU) project. This program comprises a new injection scheme for H⁻ ions from CERN’s new Linac4, the replacement of the main RF systems and an energy upgrade of the PSB rings from 1.4 to 2.0 GeV which includes the replacement of the main magnet power supply as well as the upgrade of the extraction equipment. This paper describes the status and plans of this work program.

Paper

Title

Page

Robustness Test of a Silicon Strip Crystal for Crystal-assisted Collimation Studies in the LHC

3427

A. Lechner, J. Blanco Sancho, F. Burkart, M. Calviani, M. Di Castro, Y. Gavrikov, J. Lendaro, F. Loprete, R. Losito, C. Maglioni, A. Masi, S. Montesano, A. Perillo-Marcone, P.S. Roguet, W. Scandale, D. Wollmann
CERN, Geneva, Switzerland
J. Blanco Sancho
EPFL, Lausanne, Switzerland
F. Burkart
IAP, Frankfurt am Main, Germany
Y. Gavrikov
PNPI, Gatchina, Leningrad District, Russia
V. Guidi, A. Mazzolari
INFN-Ferrara, Ferrara, Italy
V. Guidi, A. Mazzolari
UNIFE, Ferrara, Italy
W. Scandale
LAL, Orsay, France

Over the past years, the UA9 experiment has successfully demonstrated the viability of enhancing the collimation efficiency of proton and ion beams in the SPS by means of bent crystals. An extension of UA9 to the LHC has been recently approved. The conditions imposed by the LHC operational environment, in particular the tremendous energy density of the beam, require a reliable understanding of the crystal integrity in view of potential accident scenarios such as an asynchronous beam dump. For this purpose, irradiation tests have been performed at the CERN-HiRadMat facility to examine the mechanical strength of a silicon strip crystal in case of direct beam impact. The tests were carried out using a 440 GeV proton beam of 0.5 mm transverse size. The crystal, 3 mm long in beam direction, was exposed to a total of 2*10¹⁴ protons, with individual pulse intensities reaching up to 3*10¹³. First visual inspections reveal no macroscopic damage to the crystal. Complementary post-irradiation tests are foreseen to assess microscopic lattice damage as well as the degradation of the channelling efficiency.
On behalf of the UA9 Collaboration.

THPFI062

Design of Air-cooled Beam Dump for Extraction Line of PS Booster

3436

A. Perillo-Marcone, T. Antonakakis, M. Battistin, M.A. Czapski, G.W. Mason, E.M. Nowak, A. Sarrió Martínez, S. Sgobba, V. Venturi, V. Vlachoudis
CERN, Geneva, Switzerland

A new beam dump has been designed, which withstands the future proton beam extracted from the PS Booster at CERN, consisting of up to 10¹⁴ protons per pulse at 2 GeV after its upgrade in 2018/2019. In order to be able to efficiently release the deposited heat, the new dump will be made out of a single cylindrical block of a copper alloy and be cooled by forced ventilation. In order to determine the energy density distribution deposited by the beam in the dump, Monte Carlo simulations were performed using FLUKA, and thermo-mechanical analyses carried out by importing the energy density into Ansys. In addition, CFD simulations of the airflow were carried out in order to accurately estimate the heat transfer convection coefficient on the surface of the dump. In this paper we describe the design process and highlight the constraints of integrating a new dump for increased beam power into the existing facility.

THPWO078

Status of the Upgrade of the CERN PS Booster

3939

K. Hanke, O. Aberle, M. E. Angoletta, W. Bartmann, S. Bartolome, E. Benedetto, C. Bertone, A. Blas, P. Bonnal, J. Borburgh, D. Bozzini, A.C. Butterworth, C. Carli, E. Carlier, J.R.T. Cole, P. Dahlen, M. Delonca, T. Dobers, A. Findlay, R. Froeschl, J. Hansen, D. Hay, S. Jensen, J.-M. Lacroix, P. Le Roux, L.A. Lopez Hernandez, C. Maglioni, A. Masi, G.W. Mason, S.J. Mathot, B. Mikulec, Y. Muttoni, A. Newborough, D. Nisbet, S. Olek, M.M. Paoluzzi, A. Perillo-Marcone, S. Pittet, B. Puccio, V. Raginel, B. Riffaud, I. Ruehl, A. Sarrió Martínez, J. Tan, B. Todd, V. Venturi, W.J.M. Weterings
CERN, Geneva, Switzerland

The CERN PS Booster (PSB) is presently undergoing an ambitious consolidation and upgrade program within the frame of the LHC Injectors Upgrade (LIU) project. This program comprises a new injection scheme for H⁻ ions from CERN’s new Linac4, the replacement of the main RF systems and an energy upgrade of the PSB rings from 1.4 to 2.0 GeV which includes the replacement of the main magnet power supply as well as the upgrade of the extraction equipment. This paper describes the status and plans of this work program.