scholarly journals Optimal radius of crystal curvature for planar channeling of high-energy negatively charged particles in a bent crystal

2017 ◽  
Vol 20 (10) ◽  
Author(s):  
I. V. Kirillin
Keyword(s):  
Charged Particles ◽  
High Energy ◽  
Planar Channeling ◽  
Bent Crystal ◽  
Optimal Radius

scholarly journals Investigation on steering of ultrarelativistic $$e^{\pm }$$ beam through an axially oriented bent crystal

2021 ◽  
Vol 81 (3) ◽  
Author(s):  
L. Bandiera ◽  
I. V. Kyryllin ◽  
C. Brizzolari ◽  
R. Camattari ◽  
N. Charitonidis ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Crystal Orientation ◽  
Charged Particles ◽  
High Energy ◽  
Beam Line ◽  
Axial Orientation ◽  
Secondary Beam ◽  
Bent Crystal ◽  
Electrons And Positrons ◽  
Charge Sign

AbstractAn investigation on stochastic deflection of high-energy charged particles in a bent crystal was carried out. In particular, we investigated the deflection efficiency under axial confinement of both positively and negatively charged particles as a function of the crystal orientation, the choice of the bending plane, and of the charge sign. Analytic estimations and numerical simulations were compared with dedicated experiments at the H4 secondary beam line of SPS North Area, with 120 GeV/c electrons and positrons. In the work presented in this article, the optimal orientations of the plane of bending of the crystal, which allow deflecting the largest number of charged particles using a bent crystal in axial orientation, were found.

scholarly journals Energy dependence of the efficiency of high-energy negatively charged particle beam deflection by planar channeling in a bent crystal

2019 ◽  
Vol 79 (12) ◽  
Author(s):  
I. V. Kyryllin ◽  
N. F. Shul’ga
Keyword(s):  
Charged Particle ◽  
Particle Beam ◽  
High Energy ◽  
Particle Energy ◽  
Beam Deflection ◽  
Planar Channeling ◽  
Charged Particle Beam ◽  
Bent Crystal ◽  
Maximum Angle ◽  
Muon Colliders

AbstractThe study of planar channeling of high-energy negatively charged particles in bent crystals was carried out. The value of the critical radius of planar channeling in the Doyle–Turner approximation for the atomic potential is determined. The dependence of the maximum angle at which a given fraction of beam particles could be deflected by means of planar channeling in a bent crystal on the particle energy was found. We identified the ideal parameters for the exploitation of planar channeling for negatively charged particle beam deflection by planar channeling in a bent crystal at current and future high-energy accelerators, e.g., SLAC, MAMI, ILC or muon colliders.

scholarly journals On the ionization loss spectra of high-energy channeled negatively charged particles

2020 ◽  
Vol 80 (7) ◽  
Author(s):  
S. V. Trofymenko ◽  
I. V. Kyryllin
Keyword(s):  
Numerical Simulation ◽  
Experimental Determination ◽  
Silicon Crystal ◽  
Charged Particles ◽  
High Energy ◽  
Crystal Thickness ◽  
Planar Channeling ◽  
Characteristic Parameters ◽  
Ionization Loss

Abstract The ionization loss spectra of high-energy negatively charged particles which move in the planar channeling mode in a silicon crystal are studied with the use of numerical simulation. The case when the crystal thickness is on the order of the dechanneling length $$l_d$$ld is considered. It is shown that in this case the shape of the spectrum noticeably depends on $$l_d$$ld. The evolution of various characteristic parameters of the spectrum with the change of $$l_d$$ld is investigated. A method of the experimental determination of $$l_d$$ld on the basis of the measurement of the ionization loss spectrum is proposed.

ENERGY ORDERING EFFECTS IN THE ARRIVAL DIRECTIONS OF ULTRA-HIGH ENERGY COSMIC RAYS MEASURED BY THE PIERRE AUGER OBSERVATORY

2011 ◽  
Vol 20 (supp02) ◽  
pp. 50-56
Author(s):  
◽  
PETER SCHIFFER
Keyword(s):  
Cosmic Rays ◽  
Magnetic Fields ◽  
Charged Particles ◽  
High Energy ◽  
Pierre Auger Observatory ◽  
Ultra High Energy ◽  
High Energy Cosmic Rays ◽  
Ordering Effects ◽  
Arrival Directions

The Pierre Auger Observatory is the world's largest experiment for the measurement of ultra-high energy cosmic rays (UHECRs). These UHECRs are assumed to be to be charged particles, and thus are deflected in cosmic magnetic fields. Recent results of the Pierre Auger Observatory addressing the complex of energy ordering of the UHECRs arrival directions are reviewed in this contribution. So far no significant energy ordering has been observed.

Pseudorapidity distribution of relativistic singly charged particles in heavy-ion collisions at high energy

1999 ◽  
Vol 77 (4) ◽  
pp. 313-318 ◽  
Author(s):  
F -H Liu ◽  
Y A Panebratsev
Keyword(s):  
Experimental Data ◽  
Heavy Ion Collisions ◽  
Charged Particles ◽  
Heavy Ion ◽  
High Energy ◽  
Pseudorapidity Distribution ◽  
Ion Collisions ◽  
Singly Charged

The pseudorapidity distribution of relativistic singly charged particles produced in high-energy heavy-ion collisions is described by the thermalized cylinder picture. The calculated results are in agreement with the experimental data of lead-induced interactions at 158A GeV/c. PACS Nos.:25.75.-q and 25.75.Dw

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