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Proceedings Paper

Measurements of elastic and inelastic scattering cross-sections using monoenergetic K(alpha) radiation
Author(s): Donepudi V. Rao; S. M. Seltzer; John H. Hubbell; Roberto Cesareo; Antonio Brunetti; Giovanni E. Gigante
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Paper Abstract

Elastic and inelastic scattering cross-sections for low, medium and high Z atoms are measured in vacuum using an x- ray tube with a secondary targets as an excitation source. Monoenergetic K(alpha) radiation emitted from the secondary target is used to excite the sample. Monoenergetic radiation emitted from the secondary target is used to excite the sample. Monoenergetic radiation is also produced using two secondary targets coupled to an x-ray tube and the radiation from the second target of the system is used to excite the sample. Elastic and inelastic scattering of K(alpha) X-ray line energies of the secondary target by the sample are recorded with Hp Ge and Si(Li) detectors. Using this system the degree of monochromaticity of the secondary emission and the geometrical effects of the measuring system is estimated. The efficiency is large because the secondary target acts as a converter. Experimental results based on this system will be presented and compared with theoretical estimates. The importance of the dat and the potential use of the system for few applications in the field of medicine and archaeometry will also be presented.

Paper Details

Date Published: 18 December 2000
PDF: 12 pages
Proc. SPIE 4142, Penetrating Radiation Systems and Applications II, (18 December 2000); doi: 10.1117/12.410577
Show Author Affiliations
Donepudi V. Rao, National Institute of Standards and Technology (India)
S. M. Seltzer, National Institute of Standards and Technology (United States)
John H. Hubbell, National Institute of Standards and Technology (United States)
Roberto Cesareo, Univ. degli Studi di Sassari (Italy)
Antonio Brunetti, Univ. degli Studi di Sassari (Italy)
Giovanni E. Gigante, Univ. degli Studi di Roma La Sapieza (Italy)


Published in SPIE Proceedings Vol. 4142:
Penetrating Radiation Systems and Applications II
F. Patrick Doty; H. Bradford Barber; Hans Roehrig; Edward J. Morton, Editor(s)

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