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CERN Document Server 16 records found  1 - 10next  jump to record: Search took 0.64 seconds. 
1.
Improvements of the SPS slow extraction electrostatic septum / Lackner, Friedrich (CERN) ; Prost, Antoine (CERN) ; Balhan, Bruno (CERN) ; Pirozzi, Fabrizio (CERN) ; Vincke, Helmut (CERN) ; Borburgh, Jan (CERN) ; Kawa, Krzysztof (CERN ; AGH-UST, Cracow) ; Jorat, Louise Olivia (CERN) ; Fraser, Matthew (CERN) ; Roudaut, Noah (CERN ; UTBM, Belfort)
The impact of high-flux protons on the inherent beam loss in the slow extraction straight from SPS towards the North Area has been recently discussed and potential improvements have been proposed. These solutions are mainly aiming to reduce the high component activation and related reduction of lifetime, as well as observed non-straightness in the anode body. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) TUPC72 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.TUPC72
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2.
Beam Commissioning of the New 160 MeV H⁻ Injection System of the CERN PS Booster / Renner, Elisabeth (CERN ; TU Vienna) ; Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Bartosik, Hannes (CERN) ; Bracco, Chiara (CERN) ; Di Giovanni, Gian Piero (CERN) ; Jorat, Louise Olivia (CERN) ; Maclean, Ewen H (CERN) ; Meddahi, Malika (CERN) et al.
A key component to meeting the brightness targets of the LHC Injectors Upgrade (LIU) project at CERN is the new 160 MeV H⁻ charge exchange injection system into the Proton Synchrotron Booster. This system has been in beam commissioning since December 2020, optimizing the beam production schemes for tailoring different beams to the respective user-defined brightness targets. [...]
Geneva : JACoW, 2021 - 4 p. - Published in : JACoW IPAC 2021 (2021) 3116-3119 Fulltext: PDF;
In : 12th International Particle Accelerator Conference (IPAC 2021), Online, 24 - 28 May 2021, pp.3116-3119
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3.
Experimental Results of Low-Z Materials as a High Voltage Septum Anode / Borburgh, J (CERN) ; Balhan, B (CERN) ; Goddard, B (CERN) ; Jorat, L (CERN) ; Prost, A (CERN)
In the framework of the Physics Beyond Colliders study (PBC) at CERN, considerable efforts are being made to reduce the beam loss and remnant activation of the slow extraction equipment in the SPS LSS2 region. Simulations have demonstrated that changing the material of the septum anode, presently consisting of an array of WRe wires, for a low-Z alternative could reduce the overall activation of the extraction region in the order of 30%. [...]
2021 - 4 p. - Published in : 10.1109/ISDEIV46977.2021.9586893
In : 29th International Symposium on Discharges and Electrical Insulation in Vacuum, Online, 26 - 30 Sep 2021, pp.446-449
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4.
RESULTS OF THE STRIPPING FOIL MEASUREMENTS LINAC4 WEEK 36 & 48 2020 / Bracco, Chiara (CERN) ; Jorat, Louise Olivia (CERN) ; Noulibos, Remy (CERN) ; Renner, Elisabeth (Vienna University of Technology (AT)) ; Van Trappen, Pieter (CERN) ; Weterings, Wim (CERN)
The 160 MeV H− beam from the Linac4 (L4) linear accelerator at CERN will be injected into the Proton Synchrotron Booster (PSB) with a new H− charge-exchange injection system. [...]
CERN-ACC-Note-2020-0063. - 2020. - 4 p.
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5.
Measurements with the stripping foil test stand in the Linac4 Transfer Line / Bracco, Chiara (CERN) ; Jorat, Louise (CERN) ; Noulibos, Remy (CERN) ; van Trappen, Pieter (CERN) ; Weterings, Wim (CERN)
In 2020, after the CERN accelerators complex Long Shutdown 2 (LS2), a novel Linac4 (L4)-to-PS Booster (PSB) charge-exchange injection system will allow to transform the L4 160 MeV H$^-$ beam into H$^+$, which will be injected into the four PSB superposed rings. For this, a 200 µg/cm$^2$ carbon stripping foil will convert negative hydrogen ions (H$^-$) into protons by stripping off the electrons. [...]
2020 - 6 p. - Published in : EPJ Web Conf. 229 (2020) 01003 Fulltext: PDF;
In : 29th World Conference of the International Nuclear Target Development Society, East Lansing, United States, 8 - 12 Oct 2018, pp.01003
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6.
Reduction of 400  GeV/c slow extraction beam loss with a wire diffuser at the CERN Super Proton Synchrotron / Goddard, Brennan (CERN) ; Balhan, Bruno (CERN) ; Borburgh, Jan (CERN) ; Esposito, Luigi (CERN) ; Fraser, Matthew Alexander (CERN) ; Jorat, Louise (CERN) ; Kain, Verena (CERN) ; Lolliot, Christophe (CERN) ; Stoel, Linda Susan (CERN) ; van Trappen, Pieter (CERN) et al.
Slow extraction of a quasicontinuous flux of high-energy protons is an important requirement for many high-energy physics experiments. This extraction type is associated with an unavoidable beam loss due to scattering on the thin septum element. [...]
2020 - 13 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 023501 Fulltext: PDF;
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7.
Challenges for the Electric Field Devices for a CERN Proton EDM Storage Ring / Borburgh, J (CERN) ; Atanasov, M (CERN) ; Goddard, B (CERN) ; Jorat, L (CERN) ; Sgobba, S (CERN)
In the framework of the Physics Beyond Colliders (PBC) study at CERN, the Electric Dipole Moment (EDM) working group is investigating the feasibility of building an approximately 500 m circumference storage ring to precisely measure the permanent electric dipole moment of the proton. Protons are stored in an EDM ring at the so-called `magic' energy of 233 MeV using only electric field elements in order to ensure that spin and momentum vectors precess horizontally at the same rate. [...]
CERN-PBC-CONF-2021-007.- Sept - 4 p. - Published in : 10.1109/DEIV.2018.8537088
In : 28th International Symposium on Discharges and Electrical Insulation in Vacuum, pp.765-768
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8.
Design and construction of the CERN SPS extraction protection elements for LIU / Balhan, Bruno (CERN) ; Baud, Cedric (CERN) ; Borburgh, Jan (CERN) ; Fraser, Matthew (CERN) ; Hourican, Michael (CERN) ; Jorat, Louise Olivia (CERN) ; Nuiry, Francois-Xavier (CERN) ; Pianese, Stefano (CERN)
At CERN, the SPS synchrotron is equipped with two fast extraction channels towards the LHC. As a part of the LHC injector upgrade project (LIU), the protection devices upstream of the septa in both extraction channels will be upgraded. [...]
CERN-ACC-2019-191.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPMP022 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP022
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9.
The new injection region of the CERN PS Booster / Weterings, Wim (CERN) ; Bracco, Chiara (CERN) ; Jorat, Louise Olivia (CERN) ; Meddahi, Malika (CERN) ; Noulibos, Remy (CERN) ; Van Trappen, Pieter (CERN)
During the Long Shutdown 2 (LS2) at CERN, the new Linac4 (L4) accelerator will be connected to the PS Booster (PSB) to inject 160 MeV H$^−$ beam into the 4 superposed PSB rings. In order to achieve this, we have designed, built and pre-assembled a completely new H$^−$ charge-exchange injection chicane system, with a carbon stripping foil unit to convert the negative hydrogen ions into protons by stripping off the electrons. [...]
CERN-ACC-2019-195.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-WEPMP039 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP039
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10. THE NEW INJECTION REGION OF THE CERN PS BOOSTER
Reference: Poster-2019-690
Keywords:  PSB  PS Booster  Charge exchange Injection  Stripping  H-
Created: 2019. -1 p
Creator(s): Weterings, Wim; Bracco, Chiara; Jorat, Louise Olivia; Meddahi, Malika; Noulibos, Remy [...]

During the Long Shutdown 2 (LS2) at CERN, the new Linac4 (L4) accelerator will be connected to the PS Booster (PSB) to inject 160 MeV H− beam into the 4 superposed PSB rings. In order to achieve this, we have designed, built and pre-assembled a completely new H− charge-exchange injection chicane system, with a carbon stripping foil unit to convert the negative hydrogen ions into protons by stripping off the electrons. In parallel, we have built and installed a test stand in the L4 transfer line enabling us to gain valuable experience with operation of the stripping foil system and to evaluate different foil types during the L4 reliability runs. This paper describes the final design of the new PSB injection region and reports on the important test results obtained with the stripping foil test stand.

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1 Jorat, L.
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10 Jorat, Louise Olivia
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