X-ray emission spectroscopy X-ray microemission spectroscopy CHMO:0000315 XRMF spectroscopy X-ray microemission X-ray microemission spectrometry X-ray microfluorescence spectrometry XRME spectrometry XRMF spectrometry XRMF XRME spectroscopy XRME X-ray microfluorescence spectroscopy X-ray microfluorescence X-ray microemission spectroscopy X-ray spectroscopy where the sample is bombarded with a finely focused (<10 m diameter) X-ray beam and the energies and intensities of the X-rays emitted due to core-to-core transitions (known as 'X-ray fluorescence') are detected.