On measuring 70 GeV proton dechanneling lengths in silicon crystals (110) and (111)

Biryukov, V.M.; Chesnokov, Yu. A.; Galyaev, N.A.; Kotov, V.I.; Narsky, I.; Tsarik, S.V.; Zapolsky, V. N.; Fedin, O. L.; Gordeeva, M.A.; Platonov, Yu.P.; Smimov, A.I.

doi:10.1016/0168-583x(94)95286-8

Cited by 27 publications

(3 citation statements)

References 8 publications

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“…In fact, most of previous theories were suited for the available "thick" crystals, i.e. for crystals with length along the beam much longer than the nuclear dechanneling length [33,34,35,36].…”

Section: Introductionmentioning

confidence: 99%

Steering efficiency of a ultrarelativistic proton beam in a thin bent crystal

et al. 2014

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Crystals with small thickness along the beam exhibit top performance for steering particle beams through planar channeling. For such crystals, the effect of nuclear dechanneling plays an important role because it affects their efficiency. We addressed the problem through experimental work carried out with 400 GeV/c protons at fixed-target facilities of CERN-SPS. The dependence of efficiency vs. curvature radius has been investigated and compared favourably to the results of modeling. A realistic estimate of the performance of a crystal designed for LHC energy including nuclear dechanneling has been achieved.

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Section: Introductionmentioning

confidence: 99%

Steering efficiency of a ultrarelativistic proton beam in a thin bent crystal

et al. 2014

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“…The TCMC has been modeled in the emulation by starting from TCMC parameters achieved through the characterization with white-light interferometry. Emulation makes use of analytical approximations [17][18][19] and experimental data [2,7] to calculate the cross section of main coherent and incoherent phenomena. Coherent and incoherent phenomena taken into account include channeling (CH), dechanneling (DCH), VR, VC and multiple scattering.…”

Section: Emulation Of Particle Dynamicsmentioning

confidence: 99%

A topologically connected multistrip crystal for efficient steering of high-energy beam

et al. 2012

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Multiple volume reflection has been recognized as an efficient method to steer highenergy particle beams for beam extraction or collimation. A multistrip silicon crystal has been designed, consisting in an array of mutually aligned 16 silicon strips to cause multiple volume reflection. The multistrip was fabricated from one individual wafer and given the shape of a topologically connected crystal, which proved to be the best configuration for alignment. Full characterization of such a crystal has been carried out. The crystal was extensively tested at the H8 CERN line with 400 GeV/c protons. Record deflection efficiency of (96.0 ± 0.5)% for a mean deflection angle of (112.2 ± 0.1) µrad was obtained. Since the performance of volume reflection is energy dependent, a specific emulation code has been developed to predict multistrip behavior at various energies.

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“…Bending of charged particle rays would be achieved by employing a multilayered shield with each layer composed of pieces of bent crystals. Strong fields of bent crystalline planes and axes have an ability of bending charged particles entering planar and axial channels under certain conditions [3] [4] [5] [6].…”

Section: Introductionmentioning

confidence: 99%

Channeling in Bent Crystallites: A New Method to Enhance the Radiation Shielding Efficiency*

Rana¹

2018

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A new method is proposed here aiming at designing a shielding wall with the efficiency significantly higher than that of traditional designs. This new design arises from the idea of using channeling in multilayered shielding wall structure, each layer composed of bent crystallites distributed in a way that each layer covers a small section of 2π angular range of which wall is exposed. Part of the incident charged particles will get channeled in bent crystallites in each layer. Bending of channeled particles in bent crystallites will change their directions in the wall increasing their path lengths in the wall which would enhance its shielding efficiency for charged particle radiations. Proposed design is useful for radiation shielding in fission power plants, future fusion reactors and air travel.

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On measuring 70 GeV proton dechanneling lengths in silicon crystals (110) and (111)

Cited by 27 publications

References 8 publications

Steering efficiency of a ultrarelativistic proton beam in a thin bent crystal

Steering efficiency of a ultrarelativistic proton beam in a thin bent crystal

A topologically connected multistrip crystal for efficient steering of high-energy beam

Channeling in Bent Crystallites: A New Method to Enhance the Radiation Shielding Efficiency*

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