@article {Ito2023,
	title = {Intensity Ratio of Kβ/Kα in Selected Elements from Mg to Cu, and the Chemical Effects of Cr Kα1,2 Diagram Lines and Cr Kβ/Kα Intensity Ratio in Cr Compounds},
	journal = {International Journal of Molecular Sciences},
	volume = {24},
	year = {2023},
	note = {n/a},
	month = {3},
	pages = {5570},
	publisher = {MDPI AG},
	abstract = {<p>K$_{\alpha , \beta}$ X-ray lines from photon excitation were measured in selected elements from Mg to Cu using a high-resolution double-crystal X-ray spectrometer with a proportional counter, and the K$_beta$/K$_\alpha$ intensity ratio for each element was obtained, after correcting for self-absorption, detection efficiency, and crystal reflectance. This intensity ratio increases rapidly from Mg to Ca but, in the 3d elements region, the increase becomes slower. This is related to the intensity of the Kβ line involving valence electrons. The slow increase of this ratio in the 3d elements region is thought to be due to the correlation between 3d and 4s electrons. Moreover, the chemical shifts, FWHM, asymmetry indices, and Kβ/Kα intensity ratios of the Cr compounds, due to different valences, were also investigated using the same double-crystal X-ray spectrometer. The chemical effects were clearly observed, and the Kβ/Kα intensity ratio was found to be compound-dependent for Cr.</p>
},
	issn = {14220067},
	doi = {10.3390/ijms24065570},
	author = {Yoshiaki Ito and Tatsunori Tochio and Michiru Yamashita and Sei Fukushima and Takashi Shoji and Katarzyna S{\l}abkowska and {\L}ukasz Syrocki and Marek Polasik and Jana Pade{\v z}nik Gomilsek and Marques, Jos{\'e} Pires and Jorge Miguel Sampaio and Guerra, Mauro and Machado, Jorge and Jos{\'e} Paulo Santos and Assala Hamidani and Abdelhalim Kahoul and Indelicato, Paul and Parente, Fernando}
}
