Measurement of L X-ray fluorescence cross-sections for elements with 45 <= Z <= 50 using synchrotron radiation at 8 keV

作者：Bonzi Edgardo V^*; Badiger Nagappa M; Grad Gabriela B; Barrea Raul A; Figueroa Rodolfo G

来源：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms , 2011, 269(19): 2084-2089.

DOI：10.1016/j.nimb.2011.06.016

• Fluorescence cross-sections
• Synchrotron radiation
• L X-rays
• Photoionization

The L shell fluorescence cross-sections of the elements in range 45 <= Z <= 50 have been determined at 8 keV using Synchrotron radiation. The individual L X-ray photons, Ll, L alpha, L beta(l), L beta(II), L gamma(l), and L gamma(II) produced in the target were measured with high resolution Si(Li) detector. The experimental set-up provided a low background by using linearly polarized monoenergetic photon beam, improving the signal-to-noise ratio. The experimental cross-sections obtained in this work were compared with available experimental data from Scofield [1,2] Krause [3,4] and Scofield and Puri et al. [5,6].
These experimental values closely agree with the theoretical values calculated using Scofield and Krause data, except for the case of L gamma, where values measured of this work are slighter higher.

• 出版日期2011-10-1