2020-09-18
15:52 |
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2020-09-17
09:04 |
Impact of deconditioning on the secondary electron yield of Cu surfaces in particle accelerators
/ Petit, V (CERN ; ONERA, Toulouse) ; Taborelli, M (CERN) ; Zanin, D A (CERN) ; Neupert, H (CERN) ; Chiggiato, P (CERN) ; Belhaj, M (ONERA, Toulouse)
Electron cloud is a critical phenomenon in particle accelerators operating with high intensity and positively charged beams, as it is responsible for beam instabilities, vacuum degradation, and heat load on cryogenic sections. Electron clouds provoke a conditioning of the beam pipe that is reflected on the reduction of its secondary electron yield (SEY). [...]
2020 - 9 p.
- Published in : Phys. Rev. Accel. Beams 23 (2020) 093101
Fulltext from publisher: PDF;
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2020-09-16
16:50 |
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2020-09-02
09:10 |
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Multipactor in accelerating cavities
/ Shemelin, Valery D
This book is written by two world-recognized experts in radio frequency (RF) systems for particle accelerators and is based on many years of experience in dealing with the multipactor phenomenon [...]
Cham : Springer, 2020.
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ebook
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2020-08-28
08:46 |
Reflectivity and photoelectron yield from copper in accelerators
/ La Francesca, E (LNF, Dafne Light ; U. Rome La Sapienza (main)) ; Angelucci, M (LNF, Dafne Light) ; Liedl, A (LNF, Dafne Light) ; Spallino, L (LNF, Dafne Light) ; Gonzalez, L A (LNF, Dafne Light ; CERN) ; Bellafont, I (CERN ; CELLS - ALBA, LLS) ; Siewert, F (Helmholtz-Zentrum, Berlin) ; Sertsu, M G (Helmholtz-Zentrum, Berlin) ; Sokolov, A (Helmholtz-Zentrum, Berlin) ; Schäfers, F (Helmholtz-Zentrum, Berlin) et al.
For the design of high-performance particle accelerators and vacuum systems for high-energy colliders, the choice of materials and of their surface treatment is an essential prerequisite. Physical and optical properties of such materials and their coatings are input parameters for programs to simulate their performance and to validate machine design. [...]
2020 - 15 p.
- Published in : Phys. Rev. Accel. Beams 23 (2020) 083101
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2020-08-08
06:10 |
IFJ PAN’s contribution to the HL-LHC: DQW crab cavity preparation and testing at CERN
/ Zwoźniak, A (Cracow, INP ; CERN) ; Bocian, D (Cracow, INP) ; Krawczyk, A (Cracow, INP ; CERN) ; Prochal, B (Cracow, INP ; CERN) ; Wartak, M (Cracow, INP ; CERN)
The Double Quarter Wave (DQW) Crab Cavity was designed to rotate the colliding bunches and in consequence to increase the luminosity of the LHC machine. Prior to launching series production detailed RF validation tests, both without and with beam, were performed at CERN. [...]
SPIE, 2019 - 6 p.
- Published in : Proc. SPIE 11054 (2019) 110540D
In : Superconductivity and Particle Accelerators 2018, Warsaw, Poland, 27 - 29 Nov 2018, pp.110540D
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2020-08-08
06:10 |
IFJ PAN’s contribution to the HL-LHC: crab cavities and RF
/ Krawczyk, A (Cracow, INP ; CERN) ; Bocian, D (Cracow, INP) ; Prochal, B (Cracow, INP ; CERN) ; Wartak, M (Cracow, INP ; CERN) ; Zwoźniak, A (Cracow, INP ; CERN)
The High Luminosity LHC (HL-LHC) Project is an upgrade program of the Large Hadron Collider (LHC) at CERN, focused on increasing the luminosity, thus significantly enhancing the potential to discover new physics from rare events. Among many activities ongoing in this framework, the implementation of novel superconducting radio frequency (SRF) cavities - especially Crab Cavities - is foreseen for compensation of the bunch crossing angle, which is a reducing factor for LHC luminosity. [...]
SPIE, 2019 - 8 p.
- Published in : Proc. SPIE 11054 (2019) 110540C
In : Superconductivity and Particle Accelerators 2018, Warsaw, Poland, 27 - 29 Nov 2018, pp.110540C
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2020-08-08
06:10 |
IFJ PAN's contribution to the HL-LHC: construction of the superconducting links
/ Prochal, B (Cracow, INP ; CERN) ; Bocian, D (Cracow, INP) ; Krawczyk, A (Cracow, INP ; CERN) ; Zwoźniak, A (Cracow, INP ; CERN)
New superconducting transfer lines known as Superconducting Links (SC Links) are being developed at CERN for the remote powering of upgraded superconducting insertion magnets in the framework of the High Luminosity Large Hadron Collider (HL-LHC) project. The purpose of the SC Links is to transfer current from power converters located in radiation-free areas to magnets located in the vicinity of the LHC interaction points via shorter REBCO High Temperature Superconductor (HTS) current leads. [...]
SPIE, 2019 - 8 p.
- Published in : Proc. SPIE 11054 (2019) 110540B
In : Superconductivity and Particle Accelerators 2018, Warsaw, Poland, 27 - 29 Nov 2018, pp.110540B
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2020-08-04
11:38 |
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2020-08-02
06:17 |
Quench protection of the BabyIAXO magnet
/ Bykovskiy, N (CERN) ; Dudarev, A (CERN) ; Silva, H (CERN) ; ten Kate, H H J (CERN)
BabyIAXO, a 20 m-long twin-bore helioscope aiming for search of axion like particles, is currently in the engineering design phase and its construction is to be completed within the next 4 years. In addition to X-ray detectors and focusing optics, the system is equipped with a 50 MJ magnet with a common coil layout, containing two 10 m-long NbTi flat racetrack coils cooled by a group of cryocoolers. [...]
IOP, 2020 - 10 p.
- Published in : J. Phys. : Conf. Ser. 1559 (2020) 012127
Fulltext: PDF;
In : 14th European Conference on Applied Superconductivity, Glasgow, United Kingdom, 1 - 5 Sep 2019, pp.012127
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