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The UA9 setup for the double-crystal experiment in CERN-SPS
/ CERN UA 009 collaboration
Experiments to measure the electric and the magnetic moments of short-lived baryons using an internal target and two bent crystals in the vicinity of one of the existing LHC detectors were recently proposed, in the frame of the Physics Beyond Colliders Working Group at CERN. Investigating fixed-target physics in the LHC with in-vacuum solid targets is an unprecedented challenge. [...]
CERN-PBC-Notes-2021-022.-
2020 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 975 (2020) 164175
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2.
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Channeling efficiency in a target-crystal assembly
/ Scandale, W (CERN) ; Cerutti, F (CERN) ; Esposito, L S (CERN) ; Garattini, M (CERN ; Imperial Coll., London) ; Gilardoni, S (CERN) ; Montesano, S (CERN) ; Natochii, A (CERN ; LPGP, Orsay ; Taras Shevchenko U.) ; Rossi, R (CERN) ; Smirnov, G I (CERN ; Dubna, JINR) ; Zhovkovska, V (CERN ; Taras Shevchenko U.) et al.
In view of possible future fixed target experiments requiring precisely steered charged particle beams, the UA9 Collaboration has undertaken experimental studies of the use of bent silicon crystals for this purpose. The channeling efficiency of positively charged particles inside the crystalline lattice has been investigated in detail for a setup with a tungsten target installed in front of the crystal. [...]
2020 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 467 (2020) 118-122
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3.
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Double-crystal measurements at the CERN SPS
/ Scandale, W. (CERN ; Imperial Coll., London ; INFN, Rome) ; Arduini, G. (CERN) ; Cerutti, F. (CERN) ; D'Andrea, M. (CERN ; Padua U.) ; Esposito, L.S. (CERN) ; Garattini, M. (CERN ; Imperial Coll., London) ; Gilardoni, S. (CERN) ; Mirarchi, D. (CERN ; Manchester U.) ; Montesano, S. (CERN) ; Natochii, A. (CERN ; IJCLab, Orsay ; Taras Shevchenko U.) et al.
The UA9 setup, installed in the Super Proton Synchrotron (SPS) at CERN, was exploited for a proof of principle of the double-crystal scenario, proposed to measure the electric and the magnetic moments of short-lived baryons in a high-energy hadron collider, such as the Large Hadron Collider (LHC). Linear and angular actuators were used to position the crystals and establish the required beam configuration. [...]
arXiv:2103.14681; CERN-PBC-Notes-2021-024.-
2021-11-01 - 25 p.
- Published in : Nucl. Instrum. Methods Phys. Res., A 1015 (2021) 165747
Fulltext: PDF; Fulltext from publisher: PDF;
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4.
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Double-crystal setup measurements at the CERN SPS
/ Scandale, W. (CERN) ; Cerutti, F. (CERN) ; Esposito, L.S. (CERN) ; Garattini, M. (CERN ; Imperial Coll., London) ; Gilardoni, S. (CERN) ; Montesano, S. (CERN) ; Rossi, R. (CERN) ; Burmistrov, L. (Orsay, LAL) ; Dubos, S. (Orsay, LAL) ; Natochii, A. (CERN ; Orsay, LAL ; Taras Shevchenko U.) et al.
In this paper, we discuss an experimental layout for the two-crystals scenario at the Super Proton Synchrotron (SPS) accelerator. [...]
arXiv:1909.02756.
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2019. - 6 p.
Fulltext
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5.
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The UA9 experimental layout
/ Scandale, W. (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G. (CERN) ; Assmann, R. (CERN) ; Bracco, C. (CERN) ; Cerutti, F. (CERN) ; Christiansen, J. (CERN) ; Gilardoni, S. (CERN) ; Laface, E. (CERN) ; Losito, R. (CERN) ; Masi, A. (CERN) et al.
The UA9 experimental equipment was installed in the CERN-SPS in March '09 with the aim of investigating crystal assisted collimation in coasting mode. Its basic layout comprises silicon bent crystals acting as primary collimators mounted inside two vacuum vessels. [...]
arXiv:1106.5861; SLAC-PUB-15015.-
2011 - 15 p.
Fulltext: PDF; IOP Open Access article: PDF; External link: SLAC Document Server
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6.
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Observation of channeling in bent crystals at the CERN LHC
/ Rossi, Roberto (CERN ; INFN, Rome ; U. Rome La Sapienza (main)) ; Scandale, Walter (CERN) ; Arduini, Gianluigi (CERN) ; Butcher, Mark (CERN) ; Cerutti, Francesco (CERN) ; Garattini, Marco (CERN) ; Gilardoni, Simone (CERN) ; Lechner, Anton (CERN) ; Losito, Roberto (CERN) ; Masi, Alessandro (CERN) et al.
SISSA, 2016 - 4 p.
- Published in : PoS ICHEP2016 (2016) 867
PoS Open Access Article: PDF; External link: PoS server
In : 38th International Conference on High Energy Physics, Chicago, IL, USA, 03 - 10 Aug 2016, pp.867
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7.
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Dechanneling of high energy particles in a long bent crystal
/ Scandale, W (CERN) ; Arduini, G (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN ; Imperial Coll., London) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) et al.
Experimental results on deflection of a 180 GeV/c $\pi^+$-meson beam by a 23 mm long bent silicon crystal are
analyzed to study the dechanneling process of particles due to multiple scattering. A new approach for the
determination of contributions from atomic nuclei and electrons to the multiple scattering using the experimental data for random crystal orientations is suggested. [...]
2019 - 4 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 438 (2019) 38-41
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8.
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Comprehensive study of beam focusing by crystal devices
/ Scandale, W (CERN) ; Arduini, G (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) ; Petrucci, S (CERN) ; Redaelli, S (CERN) et al.
This paper is devoted to an experimental study of focusing and defocusing positively charged particle beams with the help of specially bent single crystals. Four crystals have been fabricated for this purpose. [...]
2018 - 11 p.
- Published in : Phys. Rev. Accel. Beams 21 (2018) 014702
Fulltext: PDF;
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9.
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Observation of focusing of 400 GeV/c proton beam with the help of bent crystals
/ Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Metral, E (CERN) ; Mirarchi, D (CERN) et al.
The results of observation and studies of focusing of 400 GeV/c proton beam with the help of bent single crystals are presented. Two silicon crystals have been used in the measurements. [...]
2014
Corrigendum: PDF; Elsevier Open Access article: PDF;
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10.
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Crystal for slow extraction loss-reduction of the SPS electrostatic septum
/ Esposito, Luigi Salvatore (CERN) ; Addesa, Francesca (INFN, Rome) ; Afonin, Alexander (Serpukhov, IHEP) ; Bestman, Patrick (CERN) ; Borg, Johan (Imperial Coll., London) ; Butcher, Mark (CERN) ; Calviani, Marco (CERN) ; Chesnokov, Yuri (Serpukhov, IHEP) ; Denisov, Alexander (St. Petersburg, INP) ; Di Castro, Mario (CERN) et al.
The use of a bent crystal was investigated in order to reduce the losses at the CERN Super Proton Synchrotron (SPS) electrostatic septum (ZS) during the slow extraction of 400 GeV/c protons toward the North Area. The crystal, installed a few meters upstream of the ZS, bends protons that would otherwise impinge on the ZS wires. [...]
CERN-ACC-2019-179.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPMP028
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPMP028
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