Table 7. Summary of All Experimentally Investigated Core Levels on XPS, Their Content, And Theoretically Derived, Ideological Formulae for BCW (Normalized to W) and CCWO (Normalized to Ce) Based on Given Total Atomic Ratios.

Material	Core level	s–o split	Position (eV)	fwhm(eV)	Total atom (%)	Ratio
BCW	W 4f	7/2	33.4, 34.4	1.65, 0.86	8.96	1
		5/2	35.4, 36.4	1.13, 0.88
	O 1s		529.9, 531.8	1.78, 2.68	61.01	6.81
	Ba 3d	5/2	780.4, 783.2	2.21, 1.47	19.46	2.17
		3/2	793.2, 795.5	1.16, 1.88
	Ce 3d	5/2	880.6, 883.1, 886.2, 889.6, 896.0	1.08, 2.20, 2.56, 3.64, 1.03	10.57	1.18
		3/2	898.3, 900.2, 903.0, 905.2, 917.3	1.91, 2.63, 2.31, 3.09, 2.51
CCWO	W 4f	7/2	34.6, 36.4	1.27, 1.96	9.56	1.92
		5/2	36.5, 38.1	1.39, 1.76
	Ca 2p	3/2	345.8, 347.2	1.23, 2.00	15.56	3.12
		1/2	349.2, 350.7	1.03, 1.94
	O 1s		531.4, 532.6	1.59, 2.60	64.92	13.04
	Ce 3d	5/2	880.5, 883.4, 885.8, 889.0, 896.8	3.53, 3.66, 2.26, 2.85, 3.17	9.96	2
		3/2	899.8, 902.3, 904.4, 907.6, 915.4	3.22, 3.73, 3.02, 3.07, 2.84