Talbot-Lau x-ray density diagnostic for High Energy Density plasmas

M. P. Valdivia; D. Stutman; M. Finkenthal; S. P. Regan; C. Stoeckl; C. Mileham; I. Begishev

doi:10.1109/SOFE.2015.7482292

Talbot-Lau x-ray density diagnostic for High Energy Density plasmas

M. P. Valdivia, D. Stutman, M. Finkenthal, S. P. Regan, C. Stoeckl, C. Mileham, I. Begishev

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Phase-contrast x-ray diagnostics can detect density gradients in low-Z matter with the sensitivity and spatial resolution required in High Energy Density (HED) plasma experiments. Talbot-Lau interferometry measures x-ray beam deviations due to refraction index gradients in its path. It can simultaneously provide x-ray attenuation, refraction, elemental composition, and scatter images of a low-Z object. We have developed the Talbot-Lau Moiré X-ray Deflectometry (TXD) single image technique based on phase-retrieval. The results obtained at 8 and 17 keV with high magnification using low-Z test objects suggest a clear advantage of TXD as HED electron density diagnostic over conventional radiography. The Moiré technique can detect sharp and smooth density gradients with source-limited spatial resolution. Also, TXD can use extended, incoherent, line or continuum x-ray sources, allowing for a wide range of backlighters.

Original language	English
Title of host publication	2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479982646
DOIs	https://doi.org/10.1109/SOFE.2015.7482292
State	Published - 31 May 2016
Externally published	Yes
Event	26th IEEE Symposium on Fusion Engineering, SOFE 2015 - Austin, United States Duration: 31 May 2015 → 4 Jun 2015

Publication series

Name	Proceedings - Symposium on Fusion Engineering
Volume	2016-May

Conference

Conference	26th IEEE Symposium on Fusion Engineering, SOFE 2015
Country/Territory	United States
City	Austin
Period	31/05/15 → 4/06/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

HED diagnostic
Phase-shift
Refraction diagnostics
X-ray imaging

Access to Document

10.1109/SOFE.2015.7482292

Cite this

Valdivia, M. P., Stutman, D., Finkenthal, M., Regan, S. P., Stoeckl, C., Mileham, C., & Begishev, I. (2016). Talbot-Lau x-ray density diagnostic for High Energy Density plasmas. In 2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015 Article 7482292 (Proceedings - Symposium on Fusion Engineering; Vol. 2016-May). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SOFE.2015.7482292

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title = "Talbot-Lau x-ray density diagnostic for High Energy Density plasmas",

abstract = "Phase-contrast x-ray diagnostics can detect density gradients in low-Z matter with the sensitivity and spatial resolution required in High Energy Density (HED) plasma experiments. Talbot-Lau interferometry measures x-ray beam deviations due to refraction index gradients in its path. It can simultaneously provide x-ray attenuation, refraction, elemental composition, and scatter images of a low-Z object. We have developed the Talbot-Lau Moir{\'e} X-ray Deflectometry (TXD) single image technique based on phase-retrieval. The results obtained at 8 and 17 keV with high magnification using low-Z test objects suggest a clear advantage of TXD as HED electron density diagnostic over conventional radiography. The Moir{\'e} technique can detect sharp and smooth density gradients with source-limited spatial resolution. Also, TXD can use extended, incoherent, line or continuum x-ray sources, allowing for a wide range of backlighters.",

keywords = "HED diagnostic, Phase-shift, Refraction diagnostics, X-ray imaging",

author = "Valdivia, {M. P.} and D. Stutman and M. Finkenthal and Regan, {S. P.} and C. Stoeckl and C. Mileham and I. Begishev",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 26th IEEE Symposium on Fusion Engineering, SOFE 2015 ; Conference date: 31-05-2015 Through 04-06-2015",

year = "2016",

month = may,

day = "31",

doi = "10.1109/SOFE.2015.7482292",

language = "אנגלית",

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Valdivia, MP, Stutman, D, Finkenthal, M, Regan, SP, Stoeckl, C, Mileham, C & Begishev, I 2016, Talbot-Lau x-ray density diagnostic for High Energy Density plasmas. in 2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015., 7482292, Proceedings - Symposium on Fusion Engineering, vol. 2016-May, Institute of Electrical and Electronics Engineers Inc., 26th IEEE Symposium on Fusion Engineering, SOFE 2015, Austin, United States, 31/05/15. https://doi.org/10.1109/SOFE.2015.7482292

Talbot-Lau x-ray density diagnostic for High Energy Density plasmas. / Valdivia, M. P.; Stutman, D.; Finkenthal, M. et al.
2015 IEEE 26th Symposium on Fusion Engineering, SOFE 2015. Institute of Electrical and Electronics Engineers Inc., 2016. 7482292 (Proceedings - Symposium on Fusion Engineering; Vol. 2016-May).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Stutman, D.

AU - Finkenthal, M.

AU - Regan, S. P.

AU - Stoeckl, C.

AU - Mileham, C.

AU - Begishev, I.

PY - 2016/5/31

Y1 - 2016/5/31

N2 - Phase-contrast x-ray diagnostics can detect density gradients in low-Z matter with the sensitivity and spatial resolution required in High Energy Density (HED) plasma experiments. Talbot-Lau interferometry measures x-ray beam deviations due to refraction index gradients in its path. It can simultaneously provide x-ray attenuation, refraction, elemental composition, and scatter images of a low-Z object. We have developed the Talbot-Lau Moiré X-ray Deflectometry (TXD) single image technique based on phase-retrieval. The results obtained at 8 and 17 keV with high magnification using low-Z test objects suggest a clear advantage of TXD as HED electron density diagnostic over conventional radiography. The Moiré technique can detect sharp and smooth density gradients with source-limited spatial resolution. Also, TXD can use extended, incoherent, line or continuum x-ray sources, allowing for a wide range of backlighters.

AB - Phase-contrast x-ray diagnostics can detect density gradients in low-Z matter with the sensitivity and spatial resolution required in High Energy Density (HED) plasma experiments. Talbot-Lau interferometry measures x-ray beam deviations due to refraction index gradients in its path. It can simultaneously provide x-ray attenuation, refraction, elemental composition, and scatter images of a low-Z object. We have developed the Talbot-Lau Moiré X-ray Deflectometry (TXD) single image technique based on phase-retrieval. The results obtained at 8 and 17 keV with high magnification using low-Z test objects suggest a clear advantage of TXD as HED electron density diagnostic over conventional radiography. The Moiré technique can detect sharp and smooth density gradients with source-limited spatial resolution. Also, TXD can use extended, incoherent, line or continuum x-ray sources, allowing for a wide range of backlighters.

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Talbot-Lau x-ray density diagnostic for High Energy Density plasmas

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Keywords

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