Details

Autor(en) / Beteiligte

• Gollub, S.L.
• Mitchell, C.A.
• Rogers, B.R.
• Walker, D.G.

Titel

Evaluating displacement damage in cerium-doped yttrium borate using photoluminescence lifetime

Ist Teil von

• Optical materials, 2015-07, Vol.45, p.1-8

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2015

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •YBO:Ce powder at various doping levels was fabricated and irradiated with protons.•Photoluminescence (spectral and lifetime) of the YBO:Ce was measured before and after proton irradiation.•Degradation of PL lifetime was observed after 1014H+/cm2.•Different doping levels displayed different levels of sensitivity to the radiation. The photoluminescence lifetime and spectrum of YBO3:Ce3+ are observed before and after proton bombardment. The optical properties change under irradiation, and thus the material can record information about the radiation exposure. As the fluence of 1MeV protons increases beyond 1014proton/cm2, the lifetime of YBO3:Ce3+ decreases nearly exponentially. Furthermore, by changing the concentration of cerium, the sensitivity of the material to the radiation induced defects is controllable such that lower-doped YBO3:Ce3+ is more sensitive to damage.