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2021-01-22
06:27
Dynamics of the interaction of dust particles with the LHC beam / Lindstrom, B (CERN ; Uppsala U.) ; Bélanger, P (CERN ; TRIUMF) ; Gorzawski, A (CERN ; Malta U.) ; Kral, J (CERN ; Prague, Tech. U.) ; Lechner, A (CERN) ; Salvachua, B (CERN) ; Schmidt, R (CERN) ; Siemko, A (CERN) ; Vaananen, M (CERN) ; Valuch, D (CERN) et al.
Micrometer-sized dust particles present in the Large Hadron Collider (LHC) beam pipe are believed to have caused many thousands of sporadic beam loss events around the LHC. These so-called unidentified falling objects (UFOs) have been under continuous study since the start of high intensity beam operation in the LHC due to their impact on the LHC availability: 139 beam dumps and 12 magnet quenches during Run II (2015–2018) alone. [...]
2020 - 14 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 124501 Fulltext from Publisher: PDF;

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2021-01-22
06:27
Reducing Beam-Related Background on Forward Physics Detectors Using Crystal Collimation at the Large Hadron Collider / Mirarchi, D (Manchester U. ; CERN) ; Avati, V (AGH-UST, Cracow ; CERN) ; Bruce, R (CERN) ; Butcher, M (CERN) ; D'Andrea, M (CERN ; U. Padua (main)) ; Di Castro, M (CERN) ; Deile, M (CERN) ; Dziedzic, B (Cracow, INP) ; Hiller, K (DESY) ; Jakobsen, S (CERN) et al.
Beam collimation in high-energy colliders is customarily carried out by means of massive amorphous absorbers surrounding the circulating beam. Several studies were performed in the last decades to establish an innovative collimation technique that relies on particle deflection by means of channeling between crystalline planes of a bent crystal. [...]
2020 - 20 p. - Published in : Phys. Rev. Applied 14 (2020) 064066 Fulltext: PDF;

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2021-01-19
06:00
A low fluctuation control strategy for PMSM direct drive system targeting Particle Beam Instrumentation Application / Emery, Jonathan (CERN) ; Andersson, Patrik (CERN) ; Roncarolo, Federico (CERN) ; Thoma, Yann (Appl. Sci. U., Yverdon)
Particle accelerators have a singular environment where multiple constraints are driving the engineering of equipment. [...]
2019. - 7 p.

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2021-01-18
18:17
Particles of the Universe: an ATLAS Experiment Colouring Book in Chinese | 宇宙中的粒子: 超环面仪（ATLAS）实验彩铅绘本 / Anthony, Katarina (Universita degli Studi di Udine (IT)) ; Dantas Oliveira Ribeiro Velho, Mariana (Universidade Nova de Lisboa (PT))
Language: Chinese - The ATLAS Colouring Book (Ages 4+): Explore the world of particles in this free-to-download colouring book! Meet the elementary particles that scientists have discovered – so far! – and learn about the role they play in our Universe..
ATLAS-OUTREACH-2021-007. - 2021. - 18.
Language: Chinese

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2021-01-18
12:58
Particles of the Universe: an ATLAS Experiment Colouring Book in Portuguese | Partículas do Universo: Um livro de colorir da experiência ATLAS / Anthony, Katarina (Universita degli Studi di Udine (IT)) ; Dantas Oliveira Ribeiro Velho, Mariana (Universidade Nova de Lisboa (PT))
Language: Portuguese - The ATLAS Colouring Book (Ages 4+): Explore the world of particles in this free-to-download colouring book! Meet the elementary particles that scientists have discovered – so far! – and learn about the role they play in our Universe..
ATLAS-OUTREACH-2021-006. - 2021. - 18.
Language: Portugese

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2021-01-18
09:54
Particles of the Universe: an ATLAS Experiment Colouring Book in Spanish |Partículas del Universo: Libro para colorear del Experimento ATLAS / Anthony, Katarina (Universita degli Studi di Udine (IT)) ; Dantas Oliveira Ribeiro Velho, Mariana (Universidade Nova de Lisboa (PT))
Language: Spanish - The ATLAS Colouring Book (Ages 4+): Explore the world of particles in this free-to-download colouring book! Meet the elementary particles that scientists have discovered – so far! – and learn about the role they play in our Universe..
ATLAS-OUTREACH-2021-005. - 2021. - 18.
Language: Spanish

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2021-01-15
11:59
Space charge and intrabeam scattering effects for Lead-ions and Oxygen-ions in the LHC injector chain / John, Isabelle (Lund University (SE)) ; Bartosik, Hannes (CERN)
In the context of a possible LHC run with Oxygen-ion beams in about 2023, this report presents results of the space charge and intrabeam scattering effects for the Oxygen beam in comparison to the operational Lead beam in the LHC ion-injector chain (LEIR, PS and SPS). [...]
CERN-ACC-NOTE-2021-0003. - 2021. - 31 p.

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2021-01-14
17:42
Particles of the Universe: an ATLAS Experiment Colouring Book in Greek | Σωματίδια του Σύμπαντος: Ένα Βιβλίο Ζωγραφικής του Πειράματος ATLAS / Anthony, Katarina (Universita degli Studi di Udine (IT)) ; Dantas Oliveira Ribeiro Velho, Mariana (Universidade Nova de Lisboa (PT))
Language: Greek - The ATLAS Colouring Book (Ages 4+): Explore the world of particles in this free-to-download colouring book! Meet the elementary particles that scientists have discovered – so far! – and learn about the role they play in our Universe..
ATLAS-OUTREACH-2021-004. - 2021. - 18.
Language: Modern Greek

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2021-01-14
10:23
Different approaches for minimising proton beam losses on the 11 T dipole in the IR7 dispersion suppressor / Belli, Eleonora ; Bruce, Roderik (CERN) ; Giovannozzi, Massimo (CERN) ; Mereghetti, Alessio ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN)
The High Luminosity Large Hadron Collider (HL–LHC) project aims at increasing the integrated luminosity by a factor of 10 beyond the LHC design value. [...]
CERN-ACC-NOTE-2021-0002. - 2021.
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2021-01-13
16:20
Development of an LHC model in BDSIM to study collimation cleaning and beam-induced backgrounds at ATLAS / Walker, Stuart Derek
The Large Hadron Collider (LHC) is at the frontier of high energy physics [...]
CERN-THESIS-2019-410 - 194 p.

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