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<identifier>oai:HAL:hal-00411432v1</identifier>
<datestamp>2018-01-11</datestamp>
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<publisher>HAL CCSD</publisher>
<title lang=en>Near-threshold absolute M-shell x-ray production cross sections of Au and Bi by electron impact</title>
<creator>Merlet, Claude</creator>
<creator>Llovet, X.</creator>
<creator>Salvat, F.</creator>
<contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor>
<contributor>Serveis Cientificotècnics, Universitat de Barcelona ; Université du Québec</contributor>
<contributor>Facultat de Física (ECM), Universitat de Barcelona ; Université du Québec</contributor>
<description>International audience</description>
<source>ISSN: 1050-2947</source>
<source>EISSN: 1094-1622</source>
<source>Physical Review A</source>
<publisher>American Physical Society</publisher>
<identifier>hal-00411432</identifier>
<identifier>https://hal.archives-ouvertes.fr/hal-00411432</identifier>
<source>https://hal.archives-ouvertes.fr/hal-00411432</source>
<source>Physical Review A, American Physical Society, 2008, 78 (2), pp.022704. 〈10.1103/PhysRevA.78.022704〉</source>
<identifier>DOI : 10.1103/PhysRevA.78.022704</identifier>
<relation>info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.78.022704</relation>
<language>en</language>
<subject lang=en>bismuth</subject>
<subject lang=en>electron impact ionisation</subject>
<subject lang=en>gold</subject>
<subject>[SPI.MAT] Engineering Sciences [physics]/Materials</subject>
<type>info:eu-repo/semantics/article</type>
<type>Journal articles</type>
<description lang=en>Absolute M-shell x-ray production cross sections have been measured and calculated for Au and Bi for electron incident energies from close to the ionization threshold up to 38 keV. The experimental cross sections were deduced from M alpha x-ray intensities emitted from ultrathin Au and Bi samples deposited on self-supporting C films. The measurements were performed on an electron microprobe using several wavelength-dispersive spectrometers. The x-ray production cross sections were also evaluated theoretically using ionization cross sections calculated from the plane-wave and the distorted-wave Born approximations. Experimental results are compared with the calculated cross sections and also with the results of two analytical formulas widely used in many applications. Good agreement is found between the measured cross sections and the predictions from the distorted-wave Born approximation, which indicates that this approximation is suited for the calculation of M-shell ionization cross sections of heavy elements.</description>
<date>2008</date>
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