Observation of Quasichanneling Oscillations

Wistisen, T. N.; Mikkelsen, R. E.; Uggerhoj, U. I.; Wienands, U.; Markiewicz, T. W.; Gessner, S.; Hogan, M. J.; Noble, R. J.; Holtzapple, R.; Tucker, S.; Guidi, V.; Mazzolari, A.; Bagli, E.; Bandiera, L.; Sytov, A.

doi:10.1103/PhysRevLett.119.024801

Title: Observation of Quasichanneling Oscillations

Journal Article · Thu Jul 13 00:00:00 EDT 2017 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.119.024801· OSTI ID:1374385

Wistisen, T. N. ^[1]; Mikkelsen, R. E. ^[1]; Uggerhoj, U. I. ^[1]; Wienands, U. ^[2]; Markiewicz, T. W. ^[2]; Gessner, S. ^[2]; Hogan, M. J. ^[2]; Noble, R. J. ^[2]; Holtzapple, R. ^[3]; Tucker, S. ^[4]; Guidi, V. ^[4]; Mazzolari, A. ^[4]; Bagli, E. ^[4]; Bandiera, L. ^[4]; Sytov, A. ^[4]

Aarhus Univ., Aarhus (Denmark)
SLAC National Accelerator Lab., Menlo Park, CA (United States)
California Polytechnic State Univ., San Luis Obispo, CA (United States)
Univ. of Ferrara, Ferrara (Italy)

Here, we report on the first experimental observations of quasichanneling oscillations, recently seen in simulations and described theoretically. Although above-barrier particles penetrating a single crystal are generally seen as behaving almost as in an amorphous substance, distinct oscillation peaks nevertheless appear for particles in that category. The quasichanneling oscillations were observed at SLAC National Accelerator Laboratory by aiming 20.35 GeV positrons and electrons at a thin silicon crystal bent to a radius of R = 0.15 m, exploiting the quasimosaic effect. For electrons, two relatively faint quasichanneling peaks were observed, while for positrons, seven quasichanneling peaks were clearly identified.

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Research Organization:: SLAC National Accelerator Lab., Menlo Park, CA (United States)

Sponsoring Organization:: USDOE

Contributing Organization:: SLAC E-212 Collaboration

Grant/Contract Number:: PHYS-1535696; PHY-1068662; AC02-76SF00515

OSTI ID:: 1374385

Alternate ID(s):: OSTI ID: 1369588

Journal Information:: Physical Review Letters, Vol. 119, Issue 2; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 16 works

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References (10)

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High-energy channeling — applications in beam bending and extraction Møller, Søren Pape Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 361, Issue 3 https://doi.org/10.1016/0168-9002(95)00181-6	journal	July 1995
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Observation of Deflection of a Beam of Multi-GeV Electrons by a Thin Crystal Wienands, U.; Markiewicz, T. W.; Nelson, J. Physical Review Letters, Vol. 114, Issue 7 https://doi.org/10.1103/PhysRevLett.114.074801	journal	February 2015
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Cited By (8)

A method to align a bent crystal for channeling experiments by using quasichanneling oscillations Sytov, A. I.; Guidi, V.; Tikhomirov, V. V. Journal of Instrumentation, Vol. 13, Issue 04 https://doi.org/10.1088/1748-0221/13/04/c04031	journal	April 2018
Photon emission by volume reflected electrons in bent crystals Nielsen, C. F.; Uggerhøj, U. I.; Holtzapple, R. Physical Review Accelerators and Beams, Vol. 22, Issue 11 https://doi.org/10.1103/physrevaccelbeams.22.114701	journal	November 2019
Numerical approach to the semiclassical method of radiation emission for arbitrary electron spin and photon polarization Wistisen, T. N.; Di Piazza, A. Physical Review D, Vol. 100, Issue 11 https://doi.org/10.1103/physrevd.100.116001	journal	December 2019
Steering of Sub-GeV electrons by ultrashort Si and Ge bent crystals Sytov, A. I.; Bandiera, L.; De Salvador, D. The European Physical Journal C, Vol. 77, Issue 12 https://doi.org/10.1140/epjc/s10052-017-5456-7	journal	December 2017
Channeling and radiation experiments at SLAC Wienands, U.; Gessner, S.; Hogan, M. J. International Journal of Modern Physics A, Vol. 34, Issue 34 https://doi.org/10.1142/s0217751x19430061	journal	December 2019
Channeling and radiation experiments at SLAC Wienands, U.; Gessner, S.; Hogan, M. J. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 402 https://doi.org/10.1016/j.nimb.2017.03.097	journal	July 2017
Steering of Sub-GeV electrons by ultrashort Si and Ge bent crystals Sytov, A. I.; Bandiera, L.; De Salvador, D. arXiv https://doi.org/10.48550/arxiv.1709.01482	text	January 2017
Numerical approach to the semiclassical method of radiation emission for arbitrary electron spin and photon polarization Wistisen, T. N.; Di Piazza, A. arXiv https://doi.org/10.48550/arxiv.1909.12899	text	January 2019

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