3632319 mu-XANES micro X-ray absorption near edge structure 30 3632322 muXANES muX-ray absorption near-edge spectroscopy 2 3632324 muXANES micro X-ray absorption near edge structure spectroscopy 1 3632323 muXANES Microfocused X-ray absorption near edge spectroscopy 1 3632321 muXANES muXRD, microbeam Ca K-edge X-ray absorption near-edge structure spectroscopy 1