Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography

J. A. King; K. Akli; R. A. Snavely; B. Zhang; M. H. Key; C. D. Chen; M. Chen; S. P. Hatchett; J. A. Koch; A. J. MacKinnon; P. K. Patel; T. Phillips; R. P.J. Town; R. R. Freeman; M. Borghesi; L. Romagnani; M. Zepf; T. Cowan; R. Stephens; K. L. Lancaster; C. D. Murphy; P. Norreys; C. Stoeckl

doi:10.1063/1.1940091

Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography

J. A. King
, K. Akli
, R. A. Snavely
, B. Zhang
, M. H. Key
, C. D. Chen
, M. Chen
, S. P. Hatchett
, J. A. Koch
, A. J. MacKinnon
, P. K. Patel
, T. Phillips
, R. P.J. Town
, R. R. Freeman
, M. Borghesi
, L. Romagnani
, M. Zepf
, T. Cowan
, R. Stephens
, K. L. Lancaster

C. D. Murphy, P. Norreys, C. Stoeckl

University of California, Davis
Lawrence Livermore National Laboratory
The Ohio State University
Queen's University of Belfast
General Atomics
CCLRC Rutherford Appleton Laboratory
Imperial College London
University of Rochester Laboratory for Laser Energetics

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

22 Citations (Scopus)

Abstract

Kα radiation generated by interaction of an ultrashort (1 ps) laser with thin (25 μm) Ti foils at high intensity (2× 1016 W cm2) is analyzed using data from a spherical Bragg crystal imager and a single hit charge-coupled device spectrometer together with Monte Carlo simulations of Kα brightness. Laser to Kα and electron conversion efficiencies have been determined. We have also measured an effective crystal reflectivity of 3.75±2%. Comparison of imager data with data from the relatively broadband single hit spectrometer has revealed a reduction in crystal collection efficiency for high Kα yield. This is attributed to a shift in the K -shell spectrum due to Ti ionization.

Original language	English
Article number	076102
Journal	Review of Scientific Instruments
Volume	76
Issue number	7
DOIs	https://doi.org/10.1063/1.1940091
Publication status	Published - 1 Jul 2005
Externally published	Yes

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King, J. A., Akli, K., Snavely, R. A., Zhang, B., Key, M. H., Chen, C. D., Chen, M., Hatchett, S. P., Koch, J. A., MacKinnon, A. J., Patel, P. K., Phillips, T., Town, R. P. J., Freeman, R. R., Borghesi, M., Romagnani, L., Zepf, M., Cowan, T., Stephens, R., ... Stoeckl, C. (2005). Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography. Review of Scientific Instruments, 76(7), Article 076102. https://doi.org/10.1063/1.1940091

@article{b05bced1798c416b967ed27f73f8ae39,

title = "Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography",

abstract = "Kα radiation generated by interaction of an ultrashort (1 ps) laser with thin (25 μm) Ti foils at high intensity (2{\texttimes} 1016 W cm2) is analyzed using data from a spherical Bragg crystal imager and a single hit charge-coupled device spectrometer together with Monte Carlo simulations of Kα brightness. Laser to Kα and electron conversion efficiencies have been determined. We have also measured an effective crystal reflectivity of 3.75±2\%. Comparison of imager data with data from the relatively broadband single hit spectrometer has revealed a reduction in crystal collection efficiency for high Kα yield. This is attributed to a shift in the K -shell spectrum due to Ti ionization.",

author = "King, \{J. A.\} and K. Akli and Snavely, \{R. A.\} and B. Zhang and Key, \{M. H.\} and Chen, \{C. D.\} and M. Chen and Hatchett, \{S. P.\} and Koch, \{J. A.\} and MacKinnon, \{A. J.\} and Patel, \{P. K.\} and T. Phillips and Town, \{R. P.J.\} and Freeman, \{R. R.\} and M. Borghesi and L. Romagnani and M. Zepf and T. Cowan and R. Stephens and Lancaster, \{K. L.\} and Murphy, \{C. D.\} and P. Norreys and C. Stoeckl",

year = "2005",

month = jul,

day = "1",

doi = "10.1063/1.1940091",

language = "English",

volume = "76",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics",

number = "7",

}

King, JA, Akli, K, Snavely, RA, Zhang, B, Key, MH, Chen, CD, Chen, M, Hatchett, SP, Koch, JA, MacKinnon, AJ, Patel, PK, Phillips, T, Town, RPJ, Freeman, RR, Borghesi, M, Romagnani, L, Zepf, M, Cowan, T, Stephens, R, Lancaster, KL, Murphy, CD, Norreys, P & Stoeckl, C 2005, 'Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography', Review of Scientific Instruments, vol. 76, no. 7, 076102. https://doi.org/10.1063/1.1940091

TY - JOUR

T1 - Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography

AU - King, J. A.

AU - Akli, K.

AU - Snavely, R. A.

AU - Zhang, B.

AU - Key, M. H.

AU - Chen, C. D.

AU - Chen, M.

AU - Hatchett, S. P.

AU - Koch, J. A.

AU - MacKinnon, A. J.

AU - Patel, P. K.

AU - Phillips, T.

AU - Town, R. P.J.

AU - Freeman, R. R.

AU - Borghesi, M.

AU - Romagnani, L.

AU - Zepf, M.

AU - Cowan, T.

AU - Stephens, R.

AU - Lancaster, K. L.

AU - Murphy, C. D.

AU - Norreys, P.

AU - Stoeckl, C.

PY - 2005/7/1

Y1 - 2005/7/1

N2 - Kα radiation generated by interaction of an ultrashort (1 ps) laser with thin (25 μm) Ti foils at high intensity (2× 1016 W cm2) is analyzed using data from a spherical Bragg crystal imager and a single hit charge-coupled device spectrometer together with Monte Carlo simulations of Kα brightness. Laser to Kα and electron conversion efficiencies have been determined. We have also measured an effective crystal reflectivity of 3.75±2%. Comparison of imager data with data from the relatively broadband single hit spectrometer has revealed a reduction in crystal collection efficiency for high Kα yield. This is attributed to a shift in the K -shell spectrum due to Ti ionization.

AB - Kα radiation generated by interaction of an ultrashort (1 ps) laser with thin (25 μm) Ti foils at high intensity (2× 1016 W cm2) is analyzed using data from a spherical Bragg crystal imager and a single hit charge-coupled device spectrometer together with Monte Carlo simulations of Kα brightness. Laser to Kα and electron conversion efficiencies have been determined. We have also measured an effective crystal reflectivity of 3.75±2%. Comparison of imager data with data from the relatively broadband single hit spectrometer has revealed a reduction in crystal collection efficiency for high Kα yield. This is attributed to a shift in the K -shell spectrum due to Ti ionization.

U2 - 10.1063/1.1940091

DO - 10.1063/1.1940091

M3 - Article

AN - SCOPUS:22944463021

SN - 0034-6748

VL - 76

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 7

M1 - 076102

ER -

Characterization of a picosecond laser generated 4.5 keV Ti K -alpha source for pulsed radiography

Abstract

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