Explanipedia

Multiple scattering of channeled and non-channeled positively charged particles in bent monocrystalline silicon Open

W. Scandale, G. Arduini, F. Cerutti, Luigi Salvatore Esposito, M. Garattini , et al. · 2022

Feasibility of crystal-assisted collimation in the CERN accelerator complex Open

W. Scandale, G. Arduini, R. Aßmann, Chiara Bracco, Mark Butcher , et al. · 2022

Bent silicon crystals mounted on high-accuracy angular actuators were installed in the CERN Super Proton Synchrotron (SPS) and extensively tested to assess the feasibility of crystal-assisted collimation in circular hadron colliders. The a…

Double-crystal measurements at the CERN SPS Open

W. Scandale, G. Arduini, F. Cerutti, M. D’Andrea, Luigi Salvatore Esposito , et al. · 2021

Emission of Photons at the Interaction of a High-Energy Positron Beam with a Periodically Deformed Crystal Open

A. Yanovich, A. G. Afonin, Gennadii Britvich, M. A. Chesnokov, Yu. V. Chesnokov , et al. · 2021

Periodically deformed crystals have long attracted at-tention as "crystalline undulators". In the experi-ment carried out at the U-70 accelerator, the radiation of positrons moving in a periodically deformed crystal was observed. Experimen…

Observation of strong reduction of multiple scattering for channeled particles in bent crystals Open

W. Scandale, G. Arduini, F. Cerutti, M. Garattini, S. Gilardoni , et al. · 2020

Reduction of multiple scattering of high-energy positively charged particles during channeling in single crystals Open

W. Scandale, Luigi Salvatore Esposito, M. Garattini, R. Rossi, V. Zhovkovska , et al. · 2019

We present the experimental observation of the reduction of multiple scattering of high-energy positively charged particles during channeling in single crystals. According to our measurements the rms angle of multiple scattering in the pla…

Novel applications in accelerator science based on bent single crystals Open

A. G. Afonin, M. Yu. Chesnokov, Yu. A. Chesnokov, A. Yanovich · 2019

Ideas of use the particle channeling in bent crystals for steer the beams have been checked up and advanced in many experiments. However, until now, this method of beam formation has limitations in application, since the channeling process…

Double-crystal setup measurements at the CERN SPS Open

W. Scandale, F. Cerutti, Luigi Salvatore Esposito, M. Garattini, S. Gilardoni , et al. · 2019

In this paper, we discuss an experimental layout for the two-crystals scenario at the Super Proton Synchrotron (SPS) accelerator. The research focuses on a fixed target setup at the circulating machine in a frame of the Physics Beyond Coll…

Dechanneling of high energy particles in a long bent crystal Open

W. Scandale, G. Arduini, F. Cerutti, M. Garattini, S. Gilardoni , et al. · 2018

Experimental results on deflection of a 180 GeV/c $\\pi^+$-meson beam by a 23 mm long bent silicon crystal are\nanalyzed to study the dechanneling process of particles due to multiple scattering. A new approach for the\ndetermination of co…

Study of inelastic nuclear interactions of 400 GeV/c protons in bent silicon crystals for beam steering purposes Open

W. Scandale, F. Andrisani, G. Arduini, F. Cerutti, M. Garattini , et al. · 2018

Focusing of a particle beam by a crystal device with a short focal length Open

W. Scandale, G. Arduini, F. Cerutti, M. Garattini, S. Gilardoni , et al. · 2017

Recent discussions about accelerators in high energy physics identified several challenges for the future, where it is necessary to focus particle beams over a distance of a few cm. In this paper, we investigate the focusing of particles b…

Charm production nearby threshold in pA-interactions at 70 GeV Open

A. G. Afonin, E.N. Ardashev, V. P. Balandin, G. A. Bogdanova, M. Bogolyubsky , et al. · 2017

The results of the SERP-E-184 experiment at the U-70 accelerator (IHEP, Protvino) are presented. Interactions of the 70 GeV proton beam with C, Si and Pb targets were studied to detect decays of charmed $D^0$, $\overline D^0$, $D^+$, $D^-$…

Observation of channeling in bent crystals at the CERN LHC Open

R. Rossi, W. Scandale, G. Arduini, Mark Butcher, F. Cerutti , et al. · 2017

The feasibility of crystal-assisted collimation is being investigated for improvements of the LHC collimation system, as a part of the future high luminosity upgrade of the CERN LHC (HL-LHC). Two high-accuracy goniometers, each equipped wi…

Charm production nearby threshold in pA-interactions at 70 GeV Open

Е. С. Кокоулина, E.N. Ardashev, A. G. Afonin, V. P. Balandin, G. A. Bogdanova , et al. · 2017

he results of the SERP-E-184 experiment at the U-70 accelerator (IHEP, Protvino) are presented. Interactions of the 70 GeV proton beam with C, Si and Pb targets were studied to detect decays of charmed $D^0$, $\overline D^0$, $D^+$, $D^-$ …

High-efficiency deflection of high energy protons due to channeling along the 〈110〉 axis of a bent silicon crystal Open

W. Scandale, G. Arduini, Mark Butcher, F. Cerutti, M. Garattini , et al. · 2016

The measurement results of carbon ion beam structure extracted by bent crystal from U-70 accelerator Open

A. G. Afonin, E. V. Barnov, G. I. Britvich, Yu. A. Chesnokov, P. N. Chirkov , et al. · 2016

The carbon ion +6C beam with energy 25 GeV/nucleon was extracted by bent crystal from the U-70 ring. The bent angle of silicon crystal was 85 mrad. About 2*105 particles for 109 circulated ions in the ring were observed in beam line 4a aft…

Observation of channeling for 6500 GeV/ c protons in the crystal assisted collimation setup for LHC Open

W. Scandale, G. Arduini, Mark Butcher, F. Cerutti, M. Garattini , et al. · 2016

Corrigendum to “Observation of strong leakage reduction in crystal assisted collimation of the SPS beam” [Phys. Lett. B 748 (2015) 451–454] Open

W. Scandale, F. Andrisani, G. Arduini, Mark Butcher, F. Cerutti , et al. · 2015

Observation of strong leakage reduction in crystal assisted collimation of the SPS beam Open

W. Scandale, G. Arduini, Mark Butcher, F. Cerutti, M. Garattini , et al. · 2015

In ideal two-stage collimation systems, the secondary collimator–absorber should have its length sufficient to exclude practically the exit of halo particles with large impact parameters. In the UA9 experiments on the crystal assisted coll…

Observation of nuclear dechanneling length reduction for high energy protons in a short bent crystal Open

W. Scandale, G. Arduini, Mark Butcher, F. Cerutti, M. Garattini , et al. · 2015

Deflection of 400 GeV/c protons by a short bent silicon crystal was studied at the CERN SPS. It was shown that the dechanneling probability increases while the dechanneling length decreases with an increase of incident angles of particles …

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