CERN Accelerating science

CERN Document Server 612 záznamov nájdených  1 - 10ďalšíkoniec  skoč na záznam: Hľadanie trvalo 0.96 sekúnd. 
1.
UA9 apparatus for testing beam merging / Scandale, W (Imperial Coll., London) ; Hall, G (Imperial Coll., London) ; Pesaresi, M (Imperial Coll., London) ; Rossi, R (Imperial Coll., London) ; Uchida, K (Imperial Coll., London) ; Cerutti, F (CERN) ; Esposito, L S (CERN) ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Galluccio, F (INFN, Naples) et al.
The UA9 Collaboration has used a high-resolutionsilicon-strip telescope and a high-precision goniometer toinvestigate coherent and incoherent crystal-particle interactions inthe North Experimental Area of the CERN SPS. Over the last fifteenyears, a multitude of observations have provided a solidunderstanding of the revealed process, fostering the development offundamentally novel and useful applications for particleaccelerators, such as crystal-assisted collimation in the LHCcollider and crystal-aided extraction in the SPS synchrotron.The UA9 setup has recently been modified to test a two-beam mergingprocess assisted by bent crystals, a complex beam manipulationproposed to merge the bunch intensity of two converging beams. [...]
2025 - 15 p. - Published in : JINST 20 (2025) P10049 Fulltext: PDF;
2.
Memorandum, invitation of Dr. Martin Lee to join our division for one month or more / Scandale, W
Geneva : CERN, 1986 - 2 p.
3.
SPS Technical Committee minutes of the 17th meeting 21st December, 1983 / Scandale, W
Geneva : CERN, 1984 - 3 p.
4.
Crystal Collimation Cleaning Measurements with 6.5 TeV protons in the LHC / Rossi, Roberto (CERN ; Imperial Coll., London) ; Cavoto, Gianluca (INFN, Rome ; Rome U.) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Scandale, Walter (CERN ; Imperial Coll., London)
Safe disposal of beam halo is a fundamental requirement of modern superconductive hadron colliders to reduce thermal load on magnets and background to experimental detectors. [...]
arXiv:2507.13315.
- 2025 - 10.
Fulltext
5.
Dechanneling Population at Extreme Crystal Bending with 6.5 TeV Proton Beam / Rossi, Roberto (CERN ; Imperial Coll., London) ; Mirarchi, Daniele (CERN) ; Redaelli, Stefano (CERN) ; Scandale, Walter (CERN ; Imperial Coll., London ; INFN, Rome ; Rome U.)
Beam measurements with bent crystals, installed in the Large Hadron Collider to assist multistage collimation system, provided information on hadron interactions with crystals in the multi-TeV energy range. [...]
arXiv:2507.13252.
- 2025 - 7.
Fulltext
6.
Useful information on the superdamper / Scandale, W
CERN-SPS-DI-MST-Note-83-2.- Geneva : CERN, 1983 Technical Note
7.
Multiple scattering of positively charged particles moving near the (111) plane in a silicon single crystal / Scandale, W (Imperial Coll., London) ; Cerutti, F (CERN) ; Esposito, L S (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Redaelli, S (CERN) ; Smirnov, G (CERN) et al.
The article is devoted to the study of the suppression of multiple scattering of positively charged particles with momenta of 180 GeV/c and 400 GeV/c passing through bent single crystals of silicon at small angles to the plane (111) both in channeling mode and in the above-barrier state. For the first time, the suppression of the effect of multiple scattering of non-channeling particles passing at a small angle to one of the planes of a silicon single crystal was observed. [...]
Germany : Springer Nature, 2024 - 6 p. - Published in : Eur. Phys. J. Plus 139 (2024) 1041
8.
Channeling performance of bent crystals developed at CERN / Rodin, Volodymyr (CERN) ; Esposito, Luigi Salvatore (CERN) ; Lechner, Anton (CERN) ; Demassieux, Quentin (CERN) ; Matheson, Eloise (CERN) ; Solis Paiva, Santiago (CERN) ; Seidenbinder, Regis (CERN) ; Aberle, Oliver (CERN) ; Perillo Marcone, Antonio (CERN) ; Calviani, Marco (CERN) et al.
Bent crystals are a mature technology used in several applications at CERN, such as the crystal-assisted collimation system for LHC ion operation and reduction of losses during the slow extraction from the SPS by shadowing the electrostatic septum. In the future, it is planned to measure electric and magnetic dipole moments of short-lived particles with a double-crystal experiment in the LHC. [...]
2024 - 4 p. - Published in : JACoW IPAC 2024 (2024) THPS39 Fulltext: PDF;
In : 15th International Particle Accelerator Conference (IPAC 2024), Nashville, TN, United States, 19 - 24 May 2024, pp.THPS39
9.
Operational performance of crystal collimation with 6.37 $Z$ TeV Pb ion beams at the LHC / D'Andrea, M (CERN) ; Aberle, O (CERN) ; Bruce, R (CERN) ; Butcher, M (CERN) ; Di Castro, M (CERN) ; Cai, R (CERN) ; Lamas, I (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Redaelli, S (CERN) et al.
The concept of crystal collimation relies on the use of bent crystals to coherently deflect positively charged particles with suitable impact conditions by trapping them in the potential well generated by adjacent crystalline planes. The resulting deflection is much higher than what can be achieved by multiple scattering on amorphous materials. [...]
2024 - 16 p. - Published in : Phys. Rev. Accel. Beams 27 (2024) 011002 Fulltext: PDF;
10.
Beam merging assisted by a bent crystal / Scandale, W (Imperial Coll., London ; INFN, Rome) ; Cerutti, F (CERN) ; Esposito, L S (CERN) ; Gilardoni, S (CERN) ; Losito, R (CERN) ; Smirnov, G I (CERN) ; Giribono, A (Frascati) ; Bauce, M (INFN, Rome) ; Collamati, F (INFN, Rome) ; Valente, P (INFN, Rome) et al.
Bunch merging is a well-established technique to increase the intensity of synchrotrons and the luminosity of circular colliders. We suggest to exploit a combination of channeling, volume reflection and amorphous interactions in a bent crystal for beam merging in a transfer line. [...]
2023 - 6 p. - Published in : Eur. Phys. J. Plus 138 (2023) 981 Fulltext: PDF;

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