Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography

C. D. Armstrong; C. M. Brenner; C. Jones; D. R. Rusby; Z. E. Davidson; J. Wragg; S. Richards; C. Spindloe; P. Oliveira; M. Notley; R. Clarke; S. R. Mirfayzi; S. Kar; Y. Li; T. Scott; P. Mckenna; D. Neely

doi:10.1017/hpl.2019.8

Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography

C. D. Armstrong^*, C. M. Brenner, C. Jones, D. R. Rusby, Z. E. Davidson, J. Wragg, S. Richards, C. Spindloe, P. Oliveira, M. Notley, R. Clarke, S. R. Mirfayzi, S. Kar, Y. Li, T. Scott, P. Mckenna, D. Neely

^*Corresponding author for this work

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

7 Citations (Scopus)

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Abstract

Laser-solid interactions are highly suited as a potential source of high energy X-rays for nondestructive imaging. A bright, energetic X-ray pulse can be driven from a small source, making it ideal for high resolution X-ray radiography. By limiting the lateral dimensions of the target we are able to confine the region over which X-rays are produced, enabling imaging with enhanced resolution and contrast. Using constrained targets we demonstrate experimentally a X-ray source, improving the image quality compared to unconstrained foil targets. Modelling demonstrates that a larger sheath field envelope around the perimeter of the constrained targets increases the proportion of electron current that recirculates through the target, driving a brighter source of X-rays.

Original language	English
Article number	e24
Journal	High Power Laser Science and Engineering
Early online date	19 Apr 2019
DOIs	https://doi.org/10.1017/hpl.2019.8
Publication status	Early online date - 19 Apr 2019

Keywords

bremsstrahlung
high power laser
nondestructive imaging
radiography
X-ray

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Nuclear Energy and Engineering

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bremsstrahlung_emission_from_high_power_laser_interactions_with_constrained_targets_for_industrial_radiography
Copyright 2020 Elsevier. This manuscript is distributed under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited.
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Armstrong, C. D., Brenner, C. M., Jones, C., Rusby, D. R., Davidson, Z. E., Wragg, J., Richards, S., Spindloe, C., Oliveira, P., Notley, M., Clarke, R., Mirfayzi, S. R., Kar, S., Li, Y., Scott, T., Mckenna, P., & Neely, D. (2019). Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography. High Power Laser Science and Engineering, [e24]. https://doi.org/10.1017/hpl.2019.8

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title = "Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography",

abstract = "Laser-solid interactions are highly suited as a potential source of high energy X-rays for nondestructive imaging. A bright, energetic X-ray pulse can be driven from a small source, making it ideal for high resolution X-ray radiography. By limiting the lateral dimensions of the target we are able to confine the region over which X-rays are produced, enabling imaging with enhanced resolution and contrast. Using constrained targets we demonstrate experimentally a X-ray source, improving the image quality compared to unconstrained foil targets. Modelling demonstrates that a larger sheath field envelope around the perimeter of the constrained targets increases the proportion of electron current that recirculates through the target, driving a brighter source of X-rays.",

keywords = "bremsstrahlung, high power laser, nondestructive imaging, radiography, X-ray",

author = "Armstrong, {C. D.} and Brenner, {C. M.} and C. Jones and Rusby, {D. R.} and Davidson, {Z. E.} and J. Wragg and S. Richards and C. Spindloe and P. Oliveira and M. Notley and R. Clarke and Mirfayzi, {S. R.} and S. Kar and Y. Li and T. Scott and P. Mckenna and D. Neely",

year = "2019",

month = apr,

day = "19",

doi = "10.1017/hpl.2019.8",

language = "English",

journal = "High Power Laser Science and Engineering",

issn = "2095-4719",

publisher = "Cambridge University Press",

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Armstrong, CD, Brenner, CM, Jones, C, Rusby, DR, Davidson, ZE, Wragg, J, Richards, S, Spindloe, C, Oliveira, P, Notley, M, Clarke, R, Mirfayzi, SR, Kar, S, Li, Y, Scott, T, Mckenna, P & Neely, D 2019, 'Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography', High Power Laser Science and Engineering. https://doi.org/10.1017/hpl.2019.8

TY - JOUR

T1 - Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography

AU - Armstrong, C. D.

AU - Brenner, C. M.

AU - Jones, C.

AU - Rusby, D. R.

AU - Davidson, Z. E.

AU - Wragg, J.

AU - Richards, S.

AU - Spindloe, C.

AU - Oliveira, P.

AU - Notley, M.

AU - Clarke, R.

AU - Mirfayzi, S. R.

AU - Kar, S.

AU - Li, Y.

AU - Scott, T.

AU - Mckenna, P.

AU - Neely, D.

PY - 2019/4/19

Y1 - 2019/4/19

N2 - Laser-solid interactions are highly suited as a potential source of high energy X-rays for nondestructive imaging. A bright, energetic X-ray pulse can be driven from a small source, making it ideal for high resolution X-ray radiography. By limiting the lateral dimensions of the target we are able to confine the region over which X-rays are produced, enabling imaging with enhanced resolution and contrast. Using constrained targets we demonstrate experimentally a X-ray source, improving the image quality compared to unconstrained foil targets. Modelling demonstrates that a larger sheath field envelope around the perimeter of the constrained targets increases the proportion of electron current that recirculates through the target, driving a brighter source of X-rays.

AB - Laser-solid interactions are highly suited as a potential source of high energy X-rays for nondestructive imaging. A bright, energetic X-ray pulse can be driven from a small source, making it ideal for high resolution X-ray radiography. By limiting the lateral dimensions of the target we are able to confine the region over which X-rays are produced, enabling imaging with enhanced resolution and contrast. Using constrained targets we demonstrate experimentally a X-ray source, improving the image quality compared to unconstrained foil targets. Modelling demonstrates that a larger sheath field envelope around the perimeter of the constrained targets increases the proportion of electron current that recirculates through the target, driving a brighter source of X-rays.

KW - bremsstrahlung

KW - high power laser

KW - nondestructive imaging

KW - radiography

KW - X-ray

U2 - 10.1017/hpl.2019.8

DO - 10.1017/hpl.2019.8

M3 - Article

AN - SCOPUS:85064854352

JO - High Power Laser Science and Engineering

JF - High Power Laser Science and Engineering

SN - 2095-4719

M1 - e24

ER -

Bremsstrahlung emission from high power laser interactions with constrained targets for industrial radiography

Abstract

Keywords

ASJC Scopus subject areas

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