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The experimental setup of the Interaction in Crystals for Emission of RADiation collaboration at Mainzer Mikrotron: Design, commissioning, and tests
/ Lietti, D (Insubria U., Como) ; Backe, H (Mainz U., Inst. Kernphys.) ; Bagli, E (Ferrara U. ; INFN, Ferrara) ; Bandiera, L (Ferrara U. ; INFN, Ferrara) ; Berra, A (Insubria U., Como ; INFN, Milan Bicocca) ; Carturan, S (Padua U. ; INFN, Legnaro) ; De Salvador, D (Padua U. ; INFN, Legnaro) ; Germogli, G (Ferrara U. ; INFN, Ferrara) ; Guidi, V (Ferrara U. ; INFN, Ferrara) ; Lauth, W (Mainz U., Inst. Kernphys.) et al.
Silicon/germanium flat/bent crystals are thin devices able to efficiently deflect charged particle GeV-energy beams up to a few hundreds of μrad; moreover, high intensity photons can be efficiently produced in the so-called Multi-Volume Reflection (MVR) and Multiple Volume Reflections in One Crystal (MVROC) conditions. In the last years, the research interest in this field has moved to the dynamic studies of light negative leptons in the low energy range: the possibility to deflect negative particles and to produce high intensity γ sources via the coherent interactions with crystals in the sub-GeV energy range has been proved by the ICE-RAD (Interaction in Crystals for Emission of RADiation) Collaboration at the MAinzer MIkrotron (MAMI, Germany). [...]
AIP, 2015 - 10 p.
- Published in : Rev. Sci. Instrum. 86 (2015) 045102
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Study of inelastic nuclear interactions of 400 GeV/c protons in bent silicon crystals for beam steering purposes
/ Scandale, W (CERN) ; Andrisani, F (CERN) ; Arduini, G (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN ; Imperial Coll., London) ; Gilardoni, S (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) ; Petrucci, S (CERN) et al.
Inelastic nuclear interaction probability of 400 GeV/c protons interacting with bent silicon crystals was investigated, in particular for both types of crystals installed at the CERN Large Hadron Collider for beam collimation purposes. In comparison to amorphous scattering interaction, in planar channeling this probability is $\sim 36\%$ for the quasi-mosaic type (planes (111)), and $\sim 27\%$ for the strip type (planes (110)). [...]
2018 - 8 p.
- Published in : Eur. Phys. J. C 78 (2018) 505
Fulltext: PDF;
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Measurements of multiple scattering of high energy protons in bent silicon crystals
/ Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) et al.
The ordered positions of atoms in crystals give a reason to study multiple Coulomb scattering of high energy charged particles within them. In addition, the accurate representation of multiple scattering of high energy protons in a bent crystal is important for studies of crystal assisted collimation at the SPS and the LHC. [...]
2017 - 5 p.
- Published in : Nucl. Instrum. Methods Phys. Res., B 402 (2017) 291-295
In : 7h International Conference on Charged & Neutral Particles Channeling Phenomena, Sirmione, Italy, 23 - 30 Sep 2016, pp.291
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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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Observation of channeling for 6500 GeV/ c protons in the crystal assisted collimation setup for LHC
/ Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) et al.
Two high-accuracy goniometers equipped with two bent silicon crystals were installed in the betatron cleaning insertion of the CERN Large Hadron Collider (LHC) during its long shutdown. First beam tests were recently performed at the LHC with 450 GeV/ c and 6500 GeV/ c stored proton beams to investigate the feasibility of beam halo collimation assisted by bent crystals. [...]
2016 - 5 p.
- Published in : Phys. Lett. B 758 (2016) 129-133
Elsevier Open Access article: PDF;
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High-efficiency deflection of high energy protons due to channeling along the 〈110〉 axis of a bent silicon crystal
/ Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Masi, A (CERN) ; Mirarchi, D (CERN) ; Montesano, S (CERN) et al.
A deflection efficiency of about 61% was observed for 400 GeV/c protons due to channeling, most strongly along the 〈110〉 axis of a bent silicon crystal. It is comparable with the deflection efficiency in planar channeling and considerably larger than in the case of the 〈111〉 axis. [...]
2016 - 6 p.
- Published in : Phys. Lett. B 760 (2016) 826-831
Elsevier Open Access article: PDF;
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Experimental evidence of independence of nuclear de-channeling length on the particle charge sign
/ Bagli, E. (Ferrara U. ; INFN, Ferrara) ; Guidi, V. (Ferrara U. ; INFN, Ferrara) ; Mazzolari, A. (Ferrara U. ; INFN, Ferrara) ; Bandiera, L. (Ferrara U. ; INFN, Ferrara) ; Germogli, G. (Ferrara U. ; INFN, Ferrara) ; Sytov, A.I. (Ferrara U. ; INFN, Ferrara) ; De Salvador, D. (INFN, Legnaro ; Padua U.) ; Berra, A. (INFN, Milan Bicocca ; Insubria U., Como) ; Prest, M. (INFN, Milan Bicocca ; Insubria U., Como) ; Vallazza, E. (INFN, Trieste)
Under coherent interactions, particles undergo correlated collisions with the crystal lattice and their motion result in confinement in the fields of atomic planes, i.e. particle channeling. [...]
arXiv:1606.08755.-
2017-02-04 - 10 p.
- Published in : Eur. Phys. J. C 77 (2017) 71
Article from SCOAP3: PDF; Preprint: PDF; External link: Preprint
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Comparative results on the deflection of positively and negatively charged particles by multiple volume reflections in a multi-strip silicon deflector
/ Scandale, W (CERN ; Orsay, LAL ; INFN, Rome) ; Arduini, G (CERN) ; Butcher, M (CERN) ; Cerutti, F (CERN) ; Garattini, M (CERN) ; Gilardoni, S (CERN) ; Lechner, A (CERN) ; Losito, R (CERN) ; Masi, A (CERN) ; Mereghetti, A (CERN) et al.
Bent silicon crystals in channeling mode are already used for beam extraction and collimation in particle accelerators. Volume reflection of beam particles is more efficient than beam channeling, however, the mean deflection angle is rather small. [...]
2015 - 6 p.
- Published in : JETP Lett. 101 (2015) 679-684
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Relaxation of axially confined 400 GeV/c protons to planar channeling in a bent crystal
/ Bandiera, L. (INFN, Ferrara ; Ferrara U.) ; Mazzolari, A. (INFN, Ferrara ; Ferrara U.) ; Bagli, E. (INFN, Ferrara) ; Germogli, G. (INFN, Ferrara ; Ferrara U.) ; Guidi, V. (INFN, Ferrara ; Ferrara U.) ; Sytov, A. (INFN, Ferrara ; Belarus State U. ; Ferrara U.) ; Kirillin, I.V. (Kharkov, KIPT) ; Shul'ga, N.F. (Kharkov, KIPT ; Kharkov Natl. U.) ; Berra, A. (Insubria U., Como) ; Lietti, D. (Insubria U., Como ; INFN, Milan Bicocca) et al.
An investigation on the mechanism of relaxation of axially confined 400 GeV/c protons to planar channeling in a bent crystal was carried out at the extracted line H8 from CERN Super Proton Synchrotron. The experimental results were critically compared to computer simulations, showing a good agreement. [...]
arXiv:1511.03175.-
2016-02-16 - 12 p.
- Published in : Eur. Phys. J. C 76 (2016) 80
Article from SCOAP3: PDF; Preprint: PDF; Springer Open Access article: PDF; External link: Preprint
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