A bent silicon crystal in the Laue geometry to resolve actinide x-ray fluorescence for x-ray absorption spectroscopy

A. J. Kropf; J. A. Fortner; R. J. Finch; J. C. Cunnane; C. Karanfil

doi:10.1238/Physica.Topical.115a00998

A bent silicon crystal in the Laue geometry to resolve actinide x-ray fluorescence for x-ray absorption spectroscopy

A. J. Kropf, J. A. Fortner, R. J. Finch, J. C. Cunnane, C. Karanfil

Research output: Contribution to journal › Conference article › peer-review

14 Scopus citations

Abstract

A highly strained, curved silicon crystal in the Laue geometry has been used as a large area x-ray fluorescence analyzer for x-ray absorption spectroscopy. The analyzer is able to resolve the Lα fluorescence lines for neighboring actinide elements. A large gain in the signal-to-background ratio has been achieved for low levels of Mo, Np, and Pu in a UO₂ matrix. We have determined the chemical state of these elements in approved testing materials of uranium oxide spent nuclear fuel. Due to inelastic scattering from the predominant uranium, the concentration of Np measured, 0.6(2)?mg?Np/gram U, may be approaching the sensitivity limits for quantitative structural spectroscopy measurements.

Original language	English
Pages (from-to)	998-1000
Number of pages	3
Journal	Physica Scripta
Volume	T115
DOIs	https://doi.org/10.1238/Physica.Topical.115a00998
State	Published - 2005
Externally published	Yes
Event	12th X-ray Absorption Fine Structure International Conference, XAFS12 - Malmo, Sweden Duration: Jun 23 2003 → Jun 27 2003

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10.1238/Physica.Topical.115a00998

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title = "A bent silicon crystal in the Laue geometry to resolve actinide x-ray fluorescence for x-ray absorption spectroscopy",

abstract = "A highly strained, curved silicon crystal in the Laue geometry has been used as a large area x-ray fluorescence analyzer for x-ray absorption spectroscopy. The analyzer is able to resolve the Lα fluorescence lines for neighboring actinide elements. A large gain in the signal-to-background ratio has been achieved for low levels of Mo, Np, and Pu in a UO2 matrix. We have determined the chemical state of these elements in approved testing materials of uranium oxide spent nuclear fuel. Due to inelastic scattering from the predominant uranium, the concentration of Np measured, 0.6(2)?mg?Np/gram U, may be approaching the sensitivity limits for quantitative structural spectroscopy measurements.",

author = "Kropf, {A. J.} and Fortner, {J. A.} and Finch, {R. J.} and Cunnane, {J. C.} and C. Karanfil",

year = "2005",

doi = "10.1238/Physica.Topical.115a00998",

language = "English",

volume = "T115",

pages = "998--1000",

journal = "Physica Scripta",

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note = "12th X-ray Absorption Fine Structure International Conference, XAFS12 ; Conference date: 23-06-2003 Through 27-06-2003",

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TY - JOUR

T1 - A bent silicon crystal in the Laue geometry to resolve actinide x-ray fluorescence for x-ray absorption spectroscopy

AU - Kropf, A. J.

AU - Fortner, J. A.

AU - Finch, R. J.

AU - Cunnane, J. C.

AU - Karanfil, C.

PY - 2005

Y1 - 2005

N2 - A highly strained, curved silicon crystal in the Laue geometry has been used as a large area x-ray fluorescence analyzer for x-ray absorption spectroscopy. The analyzer is able to resolve the Lα fluorescence lines for neighboring actinide elements. A large gain in the signal-to-background ratio has been achieved for low levels of Mo, Np, and Pu in a UO2 matrix. We have determined the chemical state of these elements in approved testing materials of uranium oxide spent nuclear fuel. Due to inelastic scattering from the predominant uranium, the concentration of Np measured, 0.6(2)?mg?Np/gram U, may be approaching the sensitivity limits for quantitative structural spectroscopy measurements.

AB - A highly strained, curved silicon crystal in the Laue geometry has been used as a large area x-ray fluorescence analyzer for x-ray absorption spectroscopy. The analyzer is able to resolve the Lα fluorescence lines for neighboring actinide elements. A large gain in the signal-to-background ratio has been achieved for low levels of Mo, Np, and Pu in a UO2 matrix. We have determined the chemical state of these elements in approved testing materials of uranium oxide spent nuclear fuel. Due to inelastic scattering from the predominant uranium, the concentration of Np measured, 0.6(2)?mg?Np/gram U, may be approaching the sensitivity limits for quantitative structural spectroscopy measurements.

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U2 - 10.1238/Physica.Topical.115a00998

DO - 10.1238/Physica.Topical.115a00998

M3 - Conference article

AN - SCOPUS:33750878242

SN - 0281-1847

VL - T115

SP - 998

EP - 1000

JO - Physica Scripta

JF - Physica Scripta

T2 - 12th X-ray Absorption Fine Structure International Conference, XAFS12

Y2 - 23 June 2003 through 27 June 2003

ER -

A bent silicon crystal in the Laue geometry to resolve actinide x-ray fluorescence for x-ray absorption spectroscopy

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