CERN Accelerating science


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European Strategy for Particle Physics -- Accelerator R&D Roadmap / Adolphsen, C. (SLAC) ; Angal-Kalinin, D. (Daresbury) ; Arndt, T. (KIT, Karlsruhe) ; Arnold, M. (Darmstadt, Tech. U.) ; Assmann, R. (DESY ; Frascati) ; Auchmann, B. (PSI, Villigen) ; Aulenbacher, K. (Mainz U., Inst. Phys.) ; Ballarino, A. (CERN) ; Baudouy, B. (Saclay) ; Baudrenghien, P. (CERN) et al.
The 2020 update of the European Strategy for Particle Physics emphasised the importance of an intensified and well-coordinated programme of accelerator R&D, supporting the design and delivery of future particle accelerators in a timely, affordable and sustainable way. [...]
- 270 p.

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CERN-MEDICIS: A Unique Facility for the Production of Non-Conventional Radionuclides for the Medical Research / Duchemin, Charlotte (CERN) ; Barbero-Soto, Esther (CERN) ; Bernardes, Ana (CERN) ; Catherall, Richard (CERN) ; Chevallay, Eric (CERN) ; Cocolios, Thomas (Leuven U.) ; Dorsival, Alexandre (CERN) ; Fedosseev, Valentin (CERN) ; Fernier, Pascal (CERN) ; Gilardoni, Simone (CERN) et al.
The MEDICIS facility is a unique facility located at CERN dedicated to the production of non-conventional radionuclides for research and development in imaging, diagnostics and radiation therapy. It exploits in a Class A work sector, a dedicated isotope separator beam line, a target irradiation station at the 1.4 GeV Proton Synchroton Booster (PSB) and receives activated targets from external institutes during CERN Long Shut-Downs. [...]
2021 - 5 p. - Published in : JACoW IPAC 2020 (2020) THVIR13 Fulltext: PDF;
In : 11th International Particle Accelerator Conference, Caen, France, 10 - 15 May 2020, pp.THVIR13

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Polarized target at COMPASS / Doshita, Norihiro (Yamagata U.) ; Iwata, Takahiro (Yamagata U.) ; Kondo, Kaori (Yamagata U.) ; Miyachi, Yoshiyuki (Yamagata U.) ; Nukazuka, Genki (Yamagata U.) ; Reicherz, Gerhard (Ruhr U., Bochum) ; Meyer, Werner (Ruhr U., Bochum) ; Finger, Miroslav (Charles U.) ; Pesek, Michael (Charles U.) ; Horikawa, Naoaki (Chubu U.) et al.
The transversely polarized solid proton target was used in 2015 and 2018 for the polarized Drell- Yan experiment at the first in the world with a 10$^8$ /s intensity of 190 GeV pion beam at COM- PASS. Because of the radiation damage, the deterioration of the proton relaxation time of NH$_3$ was observed over more than 6 months data taking period. [...]
SISSA, 2020 - 6 p. - Published in : PoS PSTP2019 (2020) 049 Fulltext: PDF;
In : 18th International Workshop on Polarized Sources, Targets, and Polarimetry (PSTP 2019), Knoxville, United States, 23 - 27 Sep 2019, pp.049

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Recommissioning of the CERN AD Stochastic Cooling System in 2021 after Long Shutdown 2 / Hofle, Wolfgang (CERN) ; Oliveira, Joao Carlos (CERN) ; Carli, Christian (CERN) ; Caspers, Fritz (European Scientific Institute (FR)) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Louwerse, Reinier (CERN) ; Ponce, Laurette (CERN) ; Myklebust, Vebjorn Roed ; Rey, Stephane Franck (CERN) et al.
The power system of the Stochastic Cooling System of the anti-proton decelerator AD at CERN, installed on top of the shielding blocks of the AD ring, was completely dismantled during the long shutdown 2 (LS2) at the end of the 2018 run in order to gain access to the accelerator for magnet consolidation. [...]
CERN-ACC-NOTE-2022-0003 ; ISBN: 978-3-95450-243-1 ; ISSN: 2226-0374 ; doi: 10.18429/JACoW-COOL2021-S302.
- 2022. - 6 p.
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How the distance of the cavern walls affects the background rates / Ferro-Luzzi, Massimiliano (CERN) /SHiP Collaboration
to be added
CERN-SHiP-INT-2022-001.- Geneva : CERN, 2022

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First “Skin Depth” estimations using GEANT4 and FLUKA based simulations for CERN secondary beamlines / D'Alessandro, Gian Luigi (CERN ; Royal Holloway, U. of London) ; Banerjee, Dipanwita (CERN) ; Gatignon, Lau (CERN) ; Bernhard, Johannes (CERN) ; Gerbershagen, Alexander (CERN) ; van Dijk, Maarten (CERN ; Ecole Polytechnique, Lausanne) ; Gibson, Stephen (Royal Holloway, U. of London)
In order to have highly flexible secondary beamlines collimation is crucial. Collimators are blocks of material placed along the beamline that let the main beam pass within the collimator aperture limits, while most of the particles beyond it interact in the material and gets absorbed or loses enough energy to be deflected away from the beam core by the magnets placed downstream. [...]
2022 - 7 p. - Published in : Nucl. Instrum. Methods Phys. Res., B 512 (2022) 76-82 Fulltext: PDF;

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High intensity proton beam impact at 440 GeV/c on Mo and Cu coated CfC/graphite and SiC/SiC absorbers for beam intercepting devices / Maestre, Jorge (CERN ; Granada U.) ; Bahamonde, Cristina (CERN) ; Garcia, Inigo Lamas (CERN) ; Kershaw, Keith (CERN) ; Biancacci, Nicolo (CERN) ; Busom, Josep (CERN) ; Frankl, Matthias (CERN ; PSI, Villigen) ; Lechner, Anton (CERN) ; Kurtulus, Adnan (CERN) ; Makimura, Shunsuke (J-PARC ; KEK, Tsukuba) et al.
Beam Intercepting Devices (BIDs) are essential protection elements for the operation of the Large Hadron Collider (LHC) complex. The LHC internal beam dump (LHC Target Dump Injection or LHC TDI) is the main protection BID of the LHC injection system; its main function is to protect LHC equipment in the event of a malfunction of the injection kicker magnets during beam transfer from the SPS to the LHC. [...]
arXiv:2112.04792.- 2022-01-14 - 31 p. - Published in : JINST 17 (2022) P01019 Fulltext: document - PDF; 2112.04792 - PDF;

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Numerical noise due to binning in macroparticle simulations / Lasheen, Alexandre (CERN)
Numerical noise is an important parameter to minimize to ensure convergence of the macroparticle simulation results. [...]
- 2021. - 15 p.

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Energy Matching Between Linac4 and the PSB / Albright, Simon (CERN) ; Antoniou, Fanouria (CERN) ; Asvesta, Foteini (CERN) ; Skowronski, Piotr Krzysztof (CERN)
Until 2018, before Long Shutdown 2, injection to the PSB was done with a coasting proton beam from Linac2, which was then captured by the RF system. [...]
- 2022. - 7 p.
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Proof-of-principle of the ultra-narrowband detection scheme at 30 GHz toward weakly interacting slim particle search / Miyazaki, Akira (Uppsala University (SE)) ; Caspers, Fritz (European Scientific Institute (FR)) ; Steinmann, J L (Karlsruhe Institute of Technology) ; Ruess, Tobias (Karlsruhe Institute of Technology) ; Jelonnek, John (Karlsruhe Institute of Technology)
A coherent detection scheme was tested for dark photons and axion search with millimeter waves [...]
- 2021.
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