Measurement of latent tracks in amorphous SiO2 using small angle X-ray scattering

P. Kluth; C. S. Schnohr; D. J. Sprouster; A. P. Byrne; D. J. Cookson; M. C. Ridgway

doi:10.1016/j.nimb.2008.03.182

Measurement of latent tracks in amorphous SiO₂ using small angle X-ray scattering

P. Kluth^*, C. S. Schnohr, D. J. Sprouster, A. P. Byrne, D. J. Cookson, M. C. Ridgway

^*Corresponding author for this work

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

42 Citations (Scopus)

Abstract

In this paper we present preliminary yet promising results on the measurement of latent ion tracks in amorphous, 2 μm thick SiO₂ layers using small angle X-ray scattering (SAXS). The tracks were generated by ion irradiation with 89 MeV Au ions to fluences between 3 × 10¹⁰ and 3 × 10¹² ions/cm². Transmission SAXS measurements show distinct scattering from the irradiated SiO₂ as compared to the unirradiated material. Analysis of the SAXS spectra using a cylindrical model suggests a core-shell like density distribution in the ion tracks with a lower density core and a higher density shell as compared to unirradiated material. The total track radius of ∼48 Å is in very good agreement with previous experiments and calculations based on an inelastic thermal spike model.

Original language	English
Pages (from-to)	2994-2997
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	266
Issue number	12-13
DOIs	https://doi.org/10.1016/j.nimb.2008.03.182
Publication status	Published - Jun 2008

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title = "Measurement of latent tracks in amorphous SiO2 using small angle X-ray scattering",

abstract = "In this paper we present preliminary yet promising results on the measurement of latent ion tracks in amorphous, 2 μm thick SiO2 layers using small angle X-ray scattering (SAXS). The tracks were generated by ion irradiation with 89 MeV Au ions to fluences between 3 × 1010 and 3 × 1012 ions/cm2. Transmission SAXS measurements show distinct scattering from the irradiated SiO2 as compared to the unirradiated material. Analysis of the SAXS spectra using a cylindrical model suggests a core-shell like density distribution in the ion tracks with a lower density core and a higher density shell as compared to unirradiated material. The total track radius of ∼48 {\AA} is in very good agreement with previous experiments and calculations based on an inelastic thermal spike model.",

keywords = "Latent tracks, SAXS, SiO, Swift heavy ion irradiation",

author = "P. Kluth and Schnohr, {C. S.} and Sprouster, {D. J.} and Byrne, {A. P.} and Cookson, {D. J.} and Ridgway, {M. C.}",

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T1 - Measurement of latent tracks in amorphous SiO2 using small angle X-ray scattering

AU - Kluth, P.

AU - Schnohr, C. S.

AU - Sprouster, D. J.

AU - Byrne, A. P.

AU - Cookson, D. J.

AU - Ridgway, M. C.

PY - 2008/6

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N2 - In this paper we present preliminary yet promising results on the measurement of latent ion tracks in amorphous, 2 μm thick SiO2 layers using small angle X-ray scattering (SAXS). The tracks were generated by ion irradiation with 89 MeV Au ions to fluences between 3 × 1010 and 3 × 1012 ions/cm2. Transmission SAXS measurements show distinct scattering from the irradiated SiO2 as compared to the unirradiated material. Analysis of the SAXS spectra using a cylindrical model suggests a core-shell like density distribution in the ion tracks with a lower density core and a higher density shell as compared to unirradiated material. The total track radius of ∼48 Å is in very good agreement with previous experiments and calculations based on an inelastic thermal spike model.

AB - In this paper we present preliminary yet promising results on the measurement of latent ion tracks in amorphous, 2 μm thick SiO2 layers using small angle X-ray scattering (SAXS). The tracks were generated by ion irradiation with 89 MeV Au ions to fluences between 3 × 1010 and 3 × 1012 ions/cm2. Transmission SAXS measurements show distinct scattering from the irradiated SiO2 as compared to the unirradiated material. Analysis of the SAXS spectra using a cylindrical model suggests a core-shell like density distribution in the ion tracks with a lower density core and a higher density shell as compared to unirradiated material. The total track radius of ∼48 Å is in very good agreement with previous experiments and calculations based on an inelastic thermal spike model.

KW - Latent tracks

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KW - Swift heavy ion irradiation

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JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 12-13

ER -

Measurement of latent tracks in amorphous SiO₂ using small angle X-ray scattering

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