scholarly journals Observation of channeling and volume reflection in bent crystals for high-energy negative particles

2009 ◽  
Vol 681 (3) ◽  
pp. 233-236 ◽  
Author(s):  
W. Scandale ◽  
A. Vomiero ◽  
E. Bagli ◽  
S. Baricordi ◽  
P. Dalpiaz ◽  
...  
Keyword(s):  
High Energy ◽  
Volume Reflection ◽  
Bent Crystals

scholarly journals STUDIES AND APPLICATION OF BENT CRYSTALS FOR BEAM STEERING AT 70 GEV IHEP ACCELERATOR

2010 ◽  
Vol 25 (supp01) ◽  
pp. 86-97
Author(s):  
A.G. AFONIN ◽  
V.T. BARANOV ◽  
G.I. BRITVICH ◽  
V.N. CHEPEGIN ◽  
YU.A. CHESNOKOV ◽  
...  
Keyword(s):  
Beam Steering ◽  
High Energy ◽  
Proton Synchrotron ◽  
Beam Extraction ◽  
Reflection Effect ◽  
Light Ions ◽  
Volume Reflection ◽  
High Energy Collider ◽  
Major Attention ◽  
Bent Crystals

This report overviews studies accomplished in the U70 proton synchrotron of IHEP-Protvino during the recent two decades. Major attention is paid to a routine application of bent crystals for beam extraction from the machine. It has been confirmed experimentally that efficiency of beam extraction with a crystal deflector of around 85% is well feasible for a proton beam with intensity up to 1012 protons per cycle. Another trend is to use bent crystals for halo collimation in a high energy collider. New promising options emerge for, say, LHC and ILC based on the "volume reflection" effect, which has been discovered recently in machine study runs at U70 of IHEP (50 GeV) and SPS of CERN (400 GeV). Perspectives to use bent crystals for extraction of light ions from the U70 accelerator are also disclosed.

scholarly journals Angular asymmetry of the nuclear interaction probability of high energy particles in short bent crystals

2020 ◽  
Vol 80 (1) ◽  
Author(s):  
W. Scandale ◽  
F. Cerutti ◽  
L. S. Esposito ◽  
M. Garattini ◽  
S. Gilardoni ◽  
...  
Keyword(s):  
Silicon Crystal ◽  
Nuclear Interaction ◽  
High Energy ◽  
Planar Channeling ◽  
The North ◽  
Volume Reflection ◽  
Bent Crystals ◽  
First Time ◽  
High Energy Particles ◽  
Hadron Beam

AbstractThe rate of inelastic nuclear interactions in a short bent silicon crystal was precisely measured for the first time using a 180 GeV/c positive hadron beam produced in the North Experimental Area of the CERN SPS. An angular asymmetry dependence on the crystal orientation in the vicinity of the planar channeling minimum has been observed. For the inspected crystal, this probability is about $$\sim 20\%$$∼20% larger than in the amorphous case because of the atomic density increase along the particle trajectories in the angular range of volume reflection, whose dimension is determined by the crystal bending angle. Instead, for the opposite angular orientation with respect to the planar channeling, there is a smaller probability excess of $$\sim 4\%$$∼4%.

Muon collider operating by means of the focusing crystals

2020 ◽  
Vol 35 (01) ◽  
pp. 2050002 ◽  
Author(s):  
M. Yu. Chesnokov ◽  
Yu. A. Chesnokov ◽  
A. A. Yanovich
Keyword(s):  
Rest Frame ◽  
Hadron Collider ◽  
High Energy ◽  
Intermediate Energies ◽  
Muon Collider ◽  
Bent Crystals

The idea of a muon collider has been developed since the 70s. In these projects, muons are produced at targets at low or intermediate energies. Then, after reducing the emittance, they should accelerate very quickly, since the lifetime is very short ([Formula: see text]s in the rest frame). Here, we want to propose the option of the collider, where the muons can be obtained on the hadron collider at high energy using a focusing bent crystals.

Volume reflection observations in bent crystals with 13GeV/c particles

2011 ◽  
Vol 269 (6) ◽  
pp. 612-621 ◽  
Author(s):  
S. Hasan ◽  
D. Bolognini ◽  
P. Dalpiaz ◽  
G. Della Mea ◽  
D. De Salvador ◽  
...  
Keyword(s):  
Volume Reflection ◽  
Bent Crystals

scholarly journals Double volume reflection of a proton beam by a sequence of two bent crystals

2008 ◽  
Vol 658 (4) ◽  
pp. 109-111 ◽  
Author(s):  
Walter Scandale ◽  
Alberto Carnera ◽  
Gianantonio Della Mea ◽  
Davide De Salvador ◽  
Riccardo Milan ◽  
...  
Keyword(s):  
Proton Beam ◽  
Volume Reflection ◽  
Bent Crystals
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