This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Molybdenum specimen chart. en chart for scan of Molybdenum specimen The tall peak on the left side is the characteristic alpha line at two theta of degrees Second and third order lines also appear original based on Xray Spectroscopy output data Charles Miller created unpublished physics Xray spectrometry