CERN Accelerating science

CERN Document Server Encontrados 61 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.60 segundos. 
1.
Investigation on different materials after pulsed high field conditioning and low-energy H- irradiation / Serafim, Catarina (CERN ; Helsinki U.) ; Peacock, R. (CERN) ; Calatroni, S. (CERN) ; Djurabekova, F. (Helsinki U.) ; Perez Fontenla, A.T. (CERN) ; Wuensch, W. (CERN) ; Sgobba, S. (CERN) ; Grudiev, A. (CERN) ; Lombardi, A. (CERN) ; Sargsyan, E. (CERN) et al.
During operation, the radio-frequency quadrupole (RFQ) of the LINAC4 at CERN is exposed to high electric fields, which can lead to vacuum breakdown. It is also subject to beam loss, which can cause surface modification, including blistering, which can result in reduced electric field holding and an increased breakdown rate. [...]
arXiv:2410.00084.- 2024-02-21 - 8 p. - Published in : Front. Phys. 12 (2024) 1308455 Fulltext: fphy-12-1308455 (3) - PDF; 2410.00084 - PDF;
2.
LHC Oxygen Run Preparation in the CERN Injector Complex / Slupecki, Maciej (CERN) ; Aguglia, Davide (CERN) ; Aguiar, Ygor (Universite Jean Monnet (FR)) ; Alemany Fernandez, Reyes (CERN) ; Argyropoulos, Theodoros (CERN) ; Barlow, Roger Andrew (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Bilko, Kacper (Universite Jean Monnet (FR)) ; Borburgh, Jan (CERN) et al.
The Ion Accelerator Complex, composed of a linear accelerator (Linac3) and a chain of synchrotrons (Low Energy Ion Ring: LEIR, Proton Synchrotron: PS, Super Proton Synchrotron: SPS and the Large Hadron Collider: LHC) will operate oxygen ion beams for Oxygen–Oxygen (O–O) and proton–Oxygen (p–O) collisions in the LHC in Run 3. [...]
CERN-ACC-NOTE-2024-0001.
- 2024. - 29 p.
Full text
3.
Transverse Emittance Reduction in Muon Beams by Ionization Cooling / MICE Collaboration
Accelerated muon beams have been considered for next-generation studies of high-energy lepton-antilepton collisions and neutrino oscillations. However, high-brightness muon beams have not yet been produced. [...]
arXiv:2310.05669; STFC-P-2023-004; FERMILAB-PUB-23-613-AD-ND-PPD.- 2024-07-17 - 6 p. - Published in : Nature Phys.
- Published in : Nature Phys. Fulltext: 2310.05669 - PDF; publication - PDF; FERMILAB-PUB-23-613-AD-ND-PPD - PDF; erratum - PDF; External links: Fermilab Accepted Manuscript; Interesting Engineering article
4.
Quasi-Alvarez drift-tube linac structures for heavy ion therapy accelerator facilities / Khalvati, Mohammad Reza (CERN ; IPM, Tehran) ; Bencini, Vittorio (CERN) ; Ramberger, Suitbert (CERN)
Next generation heavy ion therapy and research facilities require efficient accelerating structures. Particularly, at low beam energies, right after the standard scheme of the ion source, low-energy beam transfer, and radio-frequency quadrupole (RFQ), several options for accelerating structures are available including the classic drift-tube linac (DTL), the interdigital H-mode DTL (IH-DTL), and superconducting quarter-wave resonators. [...]
2023 - 14 p. - Published in : Phys. Rev. Accel. Beams 26 (2023) 022001 Fulltext: PDF;
5.
Pulsed DC High Field Measurements of Irradiated and Non-Irradiated Electrodes of Different Materials / Peacock, Ruth (Lancaster U. (main) ; CERN) ; Bellodi, Giulia (CERN) ; Burt, Graeme (Lancaster U. (main)) ; Calatroni, Sergio (CERN) ; Da Palma Serafim, Catarina (CERN) ; Grudiev, Alexej (CERN) ; Lombardi, Alessandra (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Ramberger, Suitbert (CERN) ; Sargsyan, Edgar (CERN) et al.
Beam loss occurs in Radio Frequency Quadrupoles (RFQ), and has been observed in the H⁻ linear accelerator Linac4 (L4) at CERN. To determine if beam loss can induce breakdowns, and to compare the robustness of different materials, tests have been done using pulsed high-voltage DC systems. [...]
2022 - 4 p. - Published in : JACoW LINAC 2022 (2022) 441-444 Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.441-444
6.
Microscopy Investigation on Different Materials After Pulsed High Field Conditioning and Low Energy H$^{-}$ Irradiation / Da Palma Serafim, Catarina (CERN ; U. Helsinki (main)) ; Bellodi, Giulia (CERN) ; Calatroni, Sergio (CERN) ; Djurabekova, Flyura (U. Helsinki (main)) ; Grudiev, Alexej (CERN) ; Lombardi, Alessandra (CERN) ; Peacock, Ruth (CERN) ; Perez Fontenla, Ana Teresa (CERN) ; Ramberger, Suitbert (CERN) ; Sargsyan, Edgar (CERN) et al.
During operation the RFQ (Radio-Frequency-Quadrupole) of the LINAC4 at CERN is exposed to high electric fields which can lead to vacuum breakdown. It is also subject to beam loss that can cause surface modification, including blistering, which can result in reduced electric field handling and an increased breakdown rate. [...]
2022 - 4 p. - Published in : JACoW LINAC 2022 (2022) 422-425 Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.422-425
7.
First Years of Linac4 RF Operation / Ramberger, Suitbert (CERN) ; Wegner, Rolf (CERN)
Following the construction, commissioning, run-in, and connection, in 2021 Linac4 at CERN saw its successful start-up to full operation. Being composed primarily of RF systems, occupying most of the tunnel and the equipment hall, a coordinated effort has been put in place by four RF teams providing cavities, amplifier chains, low-level RF and general control systems. [...]
2022 - 6 p. - Published in : JACoW LINAC 2022 (2022) 25-30 Fulltext: PDF;
In : 31st Linear Accelerator Conference (LINAC22), Liverpool, UK, 28 Aug - 2 Sep 2022, pp.25-30
8.
Multiple Coulomb Scattering of muons in Lithium Hydride / MICE Collaboration
Multiple Coulomb Scattering (MCS) is a well known phenomenon occurring when charged particles traverse materials. Measurements of muons traversing low $Z$ materials made in the MuScat experiment showed that theoretical models and simulation codes, such as GEANT4 (v7.0), over-estimated the scattering. [...]
arXiv:2209.10251; RAL-P-2022-001; FERMILAB-PUB-22-729-AD-ND-PPD.- 2022-11-01 - 19 p. - Published in : Phys. Rev. D 106 (2022) 092003 Fulltext: FERMILAB-PUB-22-729-AD-ND-PPD - PDF; 2209.10251 - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
9.
Performance of the MICE diagnostic system / Mice Collaboration
Muon beams of low emittance provide the basis for the intense, well-characterised neutrino beams of a neutrino factory and for multi-TeV lepton-antilepton collisions at a muon collider. The international Muon Ionization Cooling Experiment (MICE) has demonstrated the principle of ionization cooling, the technique by which it is proposed to reduce the phase-space volume occupied by the muon beam at such facilities. [...]
arXiv:2106.05813; RAL-P-2021-001.- 2021-08-16 - 27 p. - Published in : JINST 16 (2021) P08046 Fulltext: 2106.05813 - PDF; fermilab-pub-21-284-ad-nd - PDF; Fulltext from Publisher: PDF; External link: Fermilab Library Server
10.
CERN Yellow Report Front Cover Linac4 design report / Vretenar, Maurizio (ed.)
Linear accelerator 4 (Linac4) is designed to accelerate negative hydrogen ions for injection into the Proton Synchrotron Booster (PSB) [...]
CERN-2020-006. - Geneva : CERN, 2020. - 137 p. (CERN Yellow Reports: Monographs ; 6/2020)


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37 Ramberger, S
14 Ramberger, Suitbert
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