COINCIDENCE X-RAY FLUORESCENCE (CXRF) SPECTROMETRY FOR IN VIVO QUANTITATIVE MEASUREMENT OF BONE LEAD
作者： Weijun Guo , Robin P. Gardner
DOI:
关键词: X-ray fluorescence 、 Coincidence 、 Data acquisition 、 Analytical chemistry 、 Sensitivity (control systems) 、 Chemistry 、 Computational physics 、 Monte Carlo method 、 Photon 、 Spectrometer 、 Rayleigh scattering
摘要: In previous work, the main interfering background for in vivo lead bone measurement was found to be from back-scattered Compton and Rayleigh source photons, which is, therefore, also problem improvement of sensitivity. Based on physics atomic transition, certain fractions characteristic K-series X-rays L-series are true coincidence. With an advanced CAMAC data acquisition system, experimental results presented preliminary quantitative methods analyzing coincidence spectra treated. A prototype spectrometer proposed work is studied by benchmarked Monte Carlo simulation this work. Additional information provided method (CXRF) sensitivity improved.
icdd.com参考文章(13)
Handbook of X-Ray Spectrometry 0-8247-0600-5. ,(2001) , 10.1201/9780203908709
Ron Jenkins, Quantitative x-ray spectrometry ,(1981)
Glenn F. Knoll, Radiation detection and measurement ,(1979)
James H. Scofield, Relativistic Hartree-Slater Values for K and L X-Ray Emission Rates Atomic Data and Nuclear Data Tables. ,vol. 14, pp. 121- 137 ,(1974) , 10.1016/S0092-640X(74)80019-7
Q. Ao, S.H. Lee, R.P. Gardner, Development of the specific purpose Monte Carlo code CEARXRF for the design and use of in vivo X-ray fluorescence analysis systems for lead in bone Applied Radiation and Isotopes. ,vol. 48, pp. 1403- 1412 ,(1997) , 10.1016/S0969-8043(97)00136-X
Weijun Guo, Robin P. Gardner, Walid A. Metwally, Preliminary studies on K and L coincidence spectroscopy for optimizing the in vivo XRF measurement of lead in bone Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 213, pp. 574- 578 ,(2004) , 10.1016/S0168-583X(03)01674-4
H.S. Murrieta, E.P. Muñoz, E. Adem, G. Burillo, M. Vazquez, E.B. Cabrera, Effect of irradiation dose, storage time and temperature on the ESR signal in irradiated oat, and corn and wheat Applied Radiation and Isotopes. ,vol. 47, pp. 1657- 1661 ,(1996) , 10.1016/S0969-8043(96)00238-2
Weijun Guo, Robin P Gardner, Andrew C Todd, Using the Monte Carlo – Library Least-Squares (MCLLS) approach for the in vivo XRF measurement of lead in bone Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 516, pp. 586- 593 ,(2004) , 10.1016/J.NIMA.2003.09.030
R.H. Martin, J.G.V. Taylor, The standardization of 125I: a comparison of three methods Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 312, pp. 64- 66 ,(1992) , 10.1016/0168-9002(92)90128-Q
Sang Hoon Lee, Robin P. Gardner, Andrew C. Todd, Preliminary studies on combining the K and L XRF methods for in vivo bone lead measurement. Applied Radiation and Isotopes. ,vol. 54, pp. 893- 904 ,(2001) , 10.1016/S0969-8043(00)00350-X