Crossed-beam energy transfer: Polarization effects and evidence of saturation

D. Turnbull; A. Colaïtis; R. K. Follett; J. P. Palastro; D. H. Froula; P. Michel; C. Goyon; T. Chapman; L. Divol; G. E. Kemp; D. Mariscal; S. Patankar; B. B. Pollock; S J Ross; J. D. Moody; E. R. Tubman; N. C. Woolsey

doi:10.1088/1361-6587/aab6d3

Crossed-beam energy transfer: Polarization effects and evidence of saturation

D. Turnbull, A. Colaïtis, R. K. Follett, J. P. Palastro, D. H. Froula, P. Michel, C. Goyon, T. Chapman, L. Divol, G. E. Kemp, D. Mariscal, S. Patankar, B. B. Pollock, S J Ross, J. D. Moody, E. R. Tubman, N. C. Woolsey

Research output: Contribution to journal › Article › peer-review

Abstract

Recent results on crossed-beam energy transfer are presented. Wavelength tuning was used to vary the amount of energy transfer between two beams in a quasi-stationary plasma with carefully controlled conditions. The amount of transfer agreed well with calculations assuming linear ion acoustic waves (IAWs) with amplitudes up to . Increasing the initial probe intensity to access larger IAW amplitudes for otherwise fixed conditions yields evidence of saturation. The ability to manipulate a beam's polarization, which results from the anisotropic nature of the interaction, is revisited; an example is provided to demonstrate how polarization effects in a multibeam situation can dramatically enhance the expected amount of energy transfer.

Original language	English
Article number	054017
Number of pages	10
Journal	Plasma Physics and Controlled Fusion
Volume	60
Issue number	5
DOIs	https://doi.org/10.1088/1361-6587/aab6d3
Publication status	Published - 5 Apr 2018

Bibliographical note

Keywords

CBET
crossed-beam energy transfer
inertial confinement fusion
ion acoustic waves
stimulated Brillouin scattering

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10.1088/1361-6587/aab6d3

AAC2017_PPCF_Turnbull
© 2018 IOP Publishing Ltd. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy.
Accepted author manuscript, 857 KBLicence: CC BY-NC-ND

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Turnbull, D., Colaïtis, A., Follett, R. K., Palastro, J. P., Froula, D. H., Michel, P., Goyon, C., Chapman, T., Divol, L., Kemp, G. E., Mariscal, D., Patankar, S., Pollock, B. B., Ross, S. J., Moody, J. D., Tubman, E. R., & Woolsey, N. C. (2018). Crossed-beam energy transfer: Polarization effects and evidence of saturation. Plasma Physics and Controlled Fusion, 60(5), Article 054017. https://doi.org/10.1088/1361-6587/aab6d3

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abstract = "Recent results on crossed-beam energy transfer are presented. Wavelength tuning was used to vary the amount of energy transfer between two beams in a quasi-stationary plasma with carefully controlled conditions. The amount of transfer agreed well with calculations assuming linear ion acoustic waves (IAWs) with amplitudes up to . Increasing the initial probe intensity to access larger IAW amplitudes for otherwise fixed conditions yields evidence of saturation. The ability to manipulate a beam's polarization, which results from the anisotropic nature of the interaction, is revisited; an example is provided to demonstrate how polarization effects in a multibeam situation can dramatically enhance the expected amount of energy transfer.",

keywords = "CBET, crossed-beam energy transfer, inertial confinement fusion, ion acoustic waves, stimulated Brillouin scattering",

author = "D. Turnbull and A. Cola{\"i}tis and Follett, {R. K.} and Palastro, {J. P.} and Froula, {D. H.} and P. Michel and C. Goyon and T. Chapman and L. Divol and Kemp, {G. E.} and D. Mariscal and S. Patankar and Pollock, {B. B.} and Ross, {S J} and Moody, {J. D.} and Tubman, {E. R.} and Woolsey, {N. C.}",

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Turnbull, D, Colaïtis, A, Follett, RK, Palastro, JP, Froula, DH, Michel, P, Goyon, C, Chapman, T, Divol, L, Kemp, GE, Mariscal, D, Patankar, S, Pollock, BB, Ross, SJ, Moody, JD, Tubman, ER & Woolsey, NC 2018, 'Crossed-beam energy transfer: Polarization effects and evidence of saturation', Plasma Physics and Controlled Fusion, vol. 60, no. 5, 054017. https://doi.org/10.1088/1361-6587/aab6d3

TY - JOUR

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T2 - Polarization effects and evidence of saturation

AU - Turnbull, D.

AU - Colaïtis, A.

AU - Follett, R. K.

AU - Palastro, J. P.

AU - Froula, D. H.

AU - Michel, P.

AU - Goyon, C.

AU - Chapman, T.

AU - Divol, L.

AU - Kemp, G. E.

AU - Mariscal, D.

AU - Patankar, S.

AU - Pollock, B. B.

AU - Ross, S J

AU - Moody, J. D.

AU - Tubman, E. R.

AU - Woolsey, N. C.

PY - 2018/4/5

Y1 - 2018/4/5

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AB - Recent results on crossed-beam energy transfer are presented. Wavelength tuning was used to vary the amount of energy transfer between two beams in a quasi-stationary plasma with carefully controlled conditions. The amount of transfer agreed well with calculations assuming linear ion acoustic waves (IAWs) with amplitudes up to . Increasing the initial probe intensity to access larger IAW amplitudes for otherwise fixed conditions yields evidence of saturation. The ability to manipulate a beam's polarization, which results from the anisotropic nature of the interaction, is revisited; an example is provided to demonstrate how polarization effects in a multibeam situation can dramatically enhance the expected amount of energy transfer.

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KW - inertial confinement fusion

KW - ion acoustic waves

KW - stimulated Brillouin scattering

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VL - 60

JO - Plasma Physics and Controlled Fusion

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Crossed-beam energy transfer: Polarization effects and evidence of saturation

Abstract

Bibliographical note

Keywords

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Other files and links

Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

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Crossed-beam energy transfer: Polarization effects and evidence of saturation

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Projects

Physics of Ignition: Collaboration with the National Ignition Facility: Diagnosing hot-spot mix via X-ray spectroscopy

Cite this