A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging

R.M. Deas, L.A. Wilson, D. Rusby, A. Alejo, R. Allott, P.P. Black, S.E. Black, M. Borghesi, C.M. Brenner, J. Bryant, R.J. Clarke, J.C. Collier, B. Edwards, P. Foster, J. Greenhalgh, C. Hernandez-Gomez, S. Kar, D. Lockley, R.M. Moss, Z. Najmudin & 6 others R. Pattathil, D. Symes, M.D. Whittle, J.C. Wood, P. McKenna, D. Neely

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

X-ray backscatter imaging can be used for a wide range of imaging applications, in particular for industrial inspection and portal security. Currently, the application of this imaging technique to the detection of landmines is limited due to the surrounding sand or soil strongly attenuating the 10s to 100s of keV X-rays required for backscatter imaging. Here, we introduce a new approach involving a 140 MeV short-pulse (< 100 fs) electron beam generated by laser wakefield acceleration to probe the sample, which produces Bremsstrahlung X-rays within the sample enabling greater depths to be imaged. A variety of detector and scintillator configurations are examined, with the best time response seen from an absorptive coated BaF2 scintillator with a bandpass filter to remove the slow scintillation emission components. An X-ray backscatter image of an array of different density and atomic number items is demonstrated. The use of a compact laser wakefield accelerator to generate the electron source, combined with the rapid development of more compact, efficient and higher repetition rate high power laser systems will make this system feasible for applications in the field.
LanguageEnglish
Pages791-797
Number of pages7
Journal Journal of X-Ray Science and Technology
Volume23
Issue number6
DOIs
Publication statusPublished - 17 Dec 2015

Fingerprint

Pulsed lasers
Lasers
X-Rays
Imaging techniques
X rays
Phosphors
scintillation counters
lasers
x rays
Electrons
Electron sources
electron sources
time response
High power lasers
Scintillation
Bandpass filters
bandpass filters
imaging techniques
bremsstrahlung
high power lasers

Keywords

  • X-ray backscatter
  • X-ray radar
  • X-ray imaging systems
  • X-ray
  • detection

Cite this

Deas, R. M., Wilson, L. A., Rusby, D., Alejo, A., Allott, R., Black, P. P., ... Neely, D. (2015). A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging. Journal of X-Ray Science and Technology, 23(6), 791-797. https://doi.org/10.3233/XST-150520
Deas, R.M. ; Wilson, L.A. ; Rusby, D. ; Alejo, A. ; Allott, R. ; Black, P.P. ; Black, S.E. ; Borghesi, M. ; Brenner, C.M. ; Bryant, J. ; Clarke, R.J. ; Collier, J.C. ; Edwards, B. ; Foster, P. ; Greenhalgh, J. ; Hernandez-Gomez, C. ; Kar, S. ; Lockley, D. ; Moss, R.M. ; Najmudin, Z. ; Pattathil, R. ; Symes, D. ; Whittle, M.D. ; Wood, J.C. ; McKenna, P. ; Neely, D. / A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging. In: Journal of X-Ray Science and Technology. 2015 ; Vol. 23, No. 6. pp. 791-797.
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Deas, RM, Wilson, LA, Rusby, D, Alejo, A, Allott, R, Black, PP, Black, SE, Borghesi, M, Brenner, CM, Bryant, J, Clarke, RJ, Collier, JC, Edwards, B, Foster, P, Greenhalgh, J, Hernandez-Gomez, C, Kar, S, Lockley, D, Moss, RM, Najmudin, Z, Pattathil, R, Symes, D, Whittle, MD, Wood, JC, McKenna, P & Neely, D 2015, 'A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging' Journal of X-Ray Science and Technology, vol. 23, no. 6, pp. 791-797. https://doi.org/10.3233/XST-150520

A laser driven pulsed X-ray backscatter technique for enhanced penetrative imaging. / Deas, R.M.; Wilson, L.A.; Rusby, D.; Alejo, A.; Allott, R.; Black, P.P.; Black, S.E.; Borghesi, M.; Brenner, C.M.; Bryant, J.; Clarke, R.J.; Collier, J.C.; Edwards, B.; Foster, P.; Greenhalgh, J.; Hernandez-Gomez, C.; Kar, S.; Lockley, D.; Moss, R.M.; Najmudin, Z.; Pattathil, R.; Symes, D.; Whittle, M.D.; Wood, J.C.; McKenna, P.; Neely, D.

In: Journal of X-Ray Science and Technology, Vol. 23, No. 6, 17.12.2015, p. 791-797.

Research output: Contribution to journalArticle

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AU - Deas, R.M.

AU - Wilson, L.A.

AU - Rusby, D.

AU - Alejo, A.

AU - Allott, R.

AU - Black, P.P.

AU - Black, S.E.

AU - Borghesi, M.

AU - Brenner, C.M.

AU - Bryant, J.

AU - Clarke, R.J.

AU - Collier, J.C.

AU - Edwards, B.

AU - Foster, P.

AU - Greenhalgh, J.

AU - Hernandez-Gomez, C.

AU - Kar, S.

AU - Lockley, D.

AU - Moss, R.M.

AU - Najmudin, Z.

AU - Pattathil, R.

AU - Symes, D.

AU - Whittle, M.D.

AU - Wood, J.C.

AU - McKenna, P.

AU - Neely, D.

PY - 2015/12/17

Y1 - 2015/12/17

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KW - X-ray backscatter

KW - X-ray radar

KW - X-ray imaging systems

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KW - detection

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