Azimuthal and polar angle dependence of L X-ray differential cross-sections of Yb at 59.54 keV photon energy
Özet
The azimuthal and polar angle dependence of L X-ray was investigated in the same experimental setup to remove the existing ambiguity about alignments measurements. We measured Ll, L alpha, L beta and L gamma X-ray differential cross sections of Yb for several different azimuthal angles (30 degrees, 20 degrees, 10 degrees, 0 degrees, -10 degrees and 20 degrees) and polar angles (90 degrees, 100 degrees, 110 degrees, 120 degrees, 130 degrees and 140 degrees) at 59.54 keV photon energy by using a Si(Li) detector. The azimuthal angle dependence of Ll and L alpha X-rays were observed. The azimuthal anisotropy of L beta and L gamma X-rays were not observed. On the other hand, differential cross-sections for L beta and L gamma X-rays were found independent on the polar angle within experimental error, those for Ll and L alpha X-rays depended on the polar angles. Azimuthal and polar angles dependence of L X-ray differential cross-sections contrast with the other experimental and theoretical results, which report evidence of the isotropic emission of Ll and L alpha X-rays following photoionization. (C) 2015 Elsevier B.V. All rights reserved.
Atıf için künye
AKKUS, T., ŞAHİN, Y., & Yılmaz, D. (2016). Azimuthal and polar angle dependence of L X-ray differential cross-sections of Yb at 59.54 keV photon energy. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 366, 145–149. https://doi.org/10.1016/j.nimb.2015.10.070
BibTeX
@article{akkus2016-62927,
author = {AKKUS, Tuba and ŞAHİN, Yılmaz and Yılmaz, Demet},
title = {Azimuthal and polar angle dependence of L X-ray differential cross-sections of Yb at 59.54 keV photon energy},
journal = {NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS},
year = {2016},
volume = {366},
pages = {145--149},
issn = {0168-583X},
doi = {10.1016/j.nimb.2015.10.070},
url = {https://akademik.atauni.edu.tr/yayinlar/62927-azimuthal-and-polar-angle-dependence-of-l-x-ray-differential-cross-sections-of}
}