Title :
Radiation damage in undoped and barium doped cerium fluoride
Author :
Woody, C.L. ; Kierstead, J.A. ; Levy, P.W. ; Stoll, S.P.
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
fDate :
8/1/1994 12:00:00 AM
Abstract :
Radiation damage has been measured in undoped and barium doped cerium fluoride using 60Co gamma rays. The effects of damage are mainly seen as the formation of absorption bands in the 300-350 nm and 500-600 nm regions. The bands produced at 300-350 nm result in a significant loss in detectable light output from all crystals. Recovery has been measured as a function of time at room temperature, along with the recovery induced by thermal and optical annealing. Measurements were made shortly after irradiation in order to study the effects of short term recovery. Thermoluminescence glow curves for both the doped and undoped material are also presented. Finally, it was found that neither material exhibit any significant phosphorescence after irradiation
Keywords :
annealing; barium; cerium compounds; gamma-ray absorption; gamma-ray effects; luminescence of inorganic solids; scintillation; scintillation counters; thermoluminescence; 300 to 350 nm; 500 to 600 nm; 60Co gamma rays; CeF3; CeF3:Ba; Co; absorption bands; crystals; detectable light output; doped material; optical annealing; radiation damage; room temperature; short term recovery; thermal annealing; thermoluminescence glow curves; undoped material; Annealing; Barium; Cerium; Crystals; Electromagnetic wave absorption; Gamma rays; Optical losses; Optical materials; Temperature; Time measurement;
Journal_Title :
Nuclear Science, IEEE Transactions on
