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Channeling 2012

23–28 Sept 2012
Alghero, Sardegna, Italy
Europe/Rome timezone

Session

S3.2 Channeling & Crystal Collimation

25 Sept 2012, 11:10
Alghero, Sardegna, Italy

Alghero, Sardegna, Italy

Hotel Calabona

Presentation materials

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  1. 4. Transmission Axial and Planar Channeling of Protons from Ultra Thin(55nm) Si.
    Mr MALLIKARJUNA RAO MOTAPOTHULA (GRADUATE STUDENT)
    25/09/2012, 11:10
    Channeling & Crystal Collimation
    The report contained information about my project includes the fabrication of thin silicon [001] membranes (55nm) and the experimental observation of Rainbow Channeling fine angular distributions through these membranes using a nuclear microprobe facility. The observation of these fine angular structures in the channeling patterns will be the first experimental proof of the simulations done by...
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  2. 98. Deflection of MeV Protons by an Unbent Half-Wavelength Silicon Crystal
    Dr Andrea Mazzolari (Ferrara)
    25/09/2012, 11:40
    Channeling & Crystal Collimation
    Channeling effect in bent crystals is used as a power tool for beam steering. Motion of a channeled particle is characterized by oscillations between neighbor bent atomic planes. We studied the interaction between a 2 MeV proton beam and an unbent crystal as thin as 92 nm, i.e. half of the oscillation wavelength, demonstrating that also an unbent crystal can be used to steer charged particle...
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  3. 105. Multiple Scattering and Volume Capture of Charged Particles in Bent Crystals
    Dr Micola Bondarenco (Kharkov Institute of Physics and Technology)
    25/09/2012, 12:00
    Channeling & Crystal Collimation
    Recent results [1] on incoherent multiple scattering for charged particles passing through bent crystals in planar orientation are surveyed. Regions in the crystal bending radius vs. particle energy ($R$, $E$) plane are determined, where: i- the number of bent atomic planes crossed by the particle within the intrinsic volume reflection region of extent $\sim R\theta_c$ is greater than...
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  4. 21. Theoretical and experimental study of beam focusing with the help of bent single crystals.
    Dr Vladimir Maisheev (IHEP, Protvino, Russia)
    25/09/2012, 12:20
    Channeling & Crystal Collimation
    The mathematical description of beam focusing with the help of bent single crystals is proposed. The description allows us to calculate the parameters of beam focusing at the arbitrary shape of cut of crystal edge and for crystals with the variable curvature. The results of recent ( April, 2012) experiment on the external proton beam line of IHEP accelerator are presented.
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  5. 65. The effect of electron beam reflection in axial channeling Mode
    Ilya Polimatidi (Lomonosov Moscow State University)
    25/09/2012, 12:40
    Channeling & Crystal Collimation
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