The role of segregations and oxygen doping in the photostimulation mechanism of Hesse, S. ; Zimmermann, J. ; von Seggern, H. ; Ehrenberg, H. ; Fuess, H. Abstract Publication: Radiation Measurements Pub Date: April 2007 DOI: 10.1016/j.radmeas.2007.01.057 Bibcode: 2007RadM...42..638H