Keywords: XPS PHYSICS.png This schematic depicts the process known as the Photo-electric Effect as it pertains to XPS own original caption I created this work entirely by myself 1 2010-06-10 Bvcrist Bvcrist Original upload log page en wikipedia XPS_PHYSICS png 2010-06-13 23 37 Bvcrist 1113×835× 742750 bytes <nowiki> I created this work entirely by myself Jun10 2010 BVCrist </nowiki> XPS spectroscopy |