10.14489/td.2015.07.pp.016-020

2015, 07 July

DOI: 10.14489/td.2015.07.pp.016-020

Gorshkov V. A.
THE DENSITY ESTIMATION OF MULTICOMPONENT OBJECTS WHEN USING SOURCES WITH CONTINUOUS SPECTRUM
(pp. 16-20)

Abstract. The primary method of density estimation of the object with complex chemical composition is the dual densitometry. This method has been successfully used in densitometry of infinitely thin liquid with uniform density and composition. But this method is not applicable for objects consisting of components with different chemical composition, density and thickness. It is shown, that densitometry on the base of the X-ray sources with continuous energy spectra has significant systematic error. The paper presents a method of unbiased density estimation in the finite thickness objects with inhomogeneous chemical composition on the base of sources with continuous spectra.

Keywords: density, dual energy densitometry, X-rays, continuous spectrum, heterogeneous object.

+ - About the Authors Click to collapse

V. A. Gorshkov
JSC NIIIN MSIA “Spectrum”, Moscow, Russia. E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Gorshkov V. A. (2014). Features of dual-energy x-ray densitometry of multi-component objects. Kontrol'. Diagnostika, (10), 25-30. doi: 10.14489/td.2014.010.pp.025-030.
2. Gorshkov V. A. (2015). The mass absorption coeffi-cient and the effective atomic number of a multicomponent object for the continuous spectrum of the radiation. Kontrol'. Diagnostika, (6), pp. 34-40. doi: 10.14489/td.2015.006. pp.034-040
3. Evert U., Artem'ev B. V., Buklei A. A. (2010). Ra-diology and radiographic methods. Kontrol'. Diagnostika, (2), pp. 19-20.
4. Kliuev V. V. (Ed.), Sosnin F. R., Kovalev A. V. et al. (2003). Nondestructive testing and diagnostics: handbook. (2nd (Revised and Supplemented) ed.). Moscow: Mashinostroenie.
5. Chakhlov S. V., Osipov S. P. (2013). Dual high-energy method to identificate substancies of test ob-ject. Kontrol'. Diagnostika, (9), pp. 9-17.
6. Aparo M., Mattia B., Frazzoli F. V. and Zeppa P. (1983). Dual-energy x-ray absorptiometer for nondestructive assay of mixed special nuclear material in solution. Fifth annual symposium on safeguards and nuclear materials management. Versailles, France, April 19 – 21, 1983 (European Safeguards Research and Development Association, Brussels, Belgium, 1983). Versailles.
7. Bardone G., Aparo M. and Frazzoli F. V. (1980). Dual-energy x-ray absorptiometry for the assay of mixed special nuclear material in solution. Second annual sympo-sium on safeguards and nuclear materials management, Edinburgh, Scotland, March 26 – 28, 1980 (European Safe-guards Research and Development Association, Brussels, Belgium, 1980). Edinburgh.
8. Derzhi N. (2013). Method for estimating effective atomic number and bulk density of rock samples using dual energy x-ray computed tomographic imaging. US Patent No. 20130028371. USA.
9. Heismann B. J., Leppert J. and Stierstorfer K. (2003). Density and atomic number measurements with spectral x-ray attenuation method. J. Appl. Phys., (94).
10. Ji Sung Park and Jong Kyung Kim. (2011). Calcula-tion of effective atomic number and normal density using a source weighting method in a dual energy x-ray inspection system. Journal of the Korean Physical Society, 59(4), pp. 2709-2713. doi: 10.3938/jkps.59.2709
11. Murty R. C. (2007). Effective atomic numbers of heterogeneous materials. Nature, (207), pp. 398-399.
12. Taylor M. L. et al. (2012). Robust calculation of ef-fective atomic numbers: The Auto-Zeff software. Medical Physics, 39, pp. 1769-1778.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2015.07.pp.016-020

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.