Measurement of Transverse Wakefields Induced by a Misaligned Positron Bunch in a Hollow Channel Plasma Accelerator

Lindstrøm, C. A.; Adli, E.; Allen, J. M.; An, W.; Beekman, C.; Clarke, C. I.; Clayton, C. E.; Corde, S.; Doche, A.; Frederico, J.; Gessner, S. J.; Green, S. Z.; Hogan, M. J.; Joshi, C.; Litos, M.; Lu, W.; Marsh, K. A.; Mori, W. B.; O’Shea, B. D.; Vafaei-Najafabadi, N.; Yakimenko, V.

doi:10.1103/PhysRevLett.120.124802

Title: Measurement of Transverse Wakefields Induced by a Misaligned Positron Bunch in a Hollow Channel Plasma Accelerator

Journal Article · 23 March 2018 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.120.124802 · OSTI ID:1429140

Lindstrøm, C. A.; Adli, E.; Allen, J. M.; An, W.; Beekman, C.; Clarke, C. I.; Clayton, C. E.; Corde, S.; Doche, A.; Frederico, J.; Gessner, S. J.; Green, S. Z.; Hogan, M. J.; Joshi, C.; Litos, M.; Lu, W.; Marsh, K. A.; Mori, W. B.; O’Shea, B. D.; Vafaei-Najafabadi, N. more »

Hollow channel plasma wakefield acceleration is a proposed method to provide high acceleration gradients for electrons and positrons alike: a key to future lepton colliders. However, beams which are misaligned from the channel axis induce strong transverse wakefields, deflecting beams and reducing the collider luminosity. This undesirable consequence sets a tight constraint on the alignment accuracy of the beam propagating through the channel. Direct measurements of beam misalignment-induced transverse wakefields are therefore essential for designing mitigation strategies. We present the first quantitative measurements of transverse wakefields in a hollow plasma channel, induced by an off-axis 20 GeV positron bunch, and measured with another 20 GeV lower charge trailing positron probe bunch. Furthermore, the measurements are largely consistent with theory.

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

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-76SF00515; SC0010064; SC0008491; SC0008316; 230450; PHY-1415386; OCI-1036224; ACI-1339893; PHY-0960344; 715807; 11425521; 11535006; 11175102; 2013CBA01501

OSTI ID:: 1429140

Alternate ID(s):: OSTI ID: 1436473

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Vol. 120 Journal Issue: 12; ISSN 0031-9007

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 31 works

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Cited By (4)

Positron transport and acceleration in beam-driven plasma wakefield accelerators using plasma columns Diederichs, S.; Mehrling, T. J.; Benedetti, C. Physical Review Accelerators and Beams, Vol. 22, Issue 8 https://doi.org/10.1103/physrevaccelbeams.22.081301	journal	August 2019
Positron transport and acceleration in beam-driven plasma wakefield accelerators using plasma columns Diederichs, S.; Mehrling, T. J.; Benedetti, C. Physical Review Accelerators and Beams, Vol. 22, Issue 8 https://doi.org/10.1103/physrevaccelbeams.22.081301	journal	August 2019
Plasma-based accelerators: then and now Joshi, C. Plasma Physics and Controlled Fusion, Vol. 61, Issue 10 https://doi.org/10.1088/1361-6587/ab396a	journal	August 2019
Near-Ideal Dechirper for Plasma-Based Electron and Positron Acceleration Using a Hollow Channel Plasma Wu, Y. P.; Hua, J. F.; Pai, C. -H. Physical Review Applied, Vol. 12, Issue 6 https://doi.org/10.1103/physrevapplied.12.064011	journal	December 2019