A radioluminescence study of spectral and dose characteristics of common luminophors.
Many synthetic materials are used as thermoluminescence dosemeters for the measurement of the absorbed dose from ionising radiation sources. A part of the absorbed energy leads to a prompt luminescence (radioluminescence, abbreviated RL) which dose behaviour mainly corresponds with the densitity of charge carriers in the respective traps or recombination sites. The RL reported in this study was stimulated using two 137Cs sources with activities of 3.7 MBq (spectral measurements) or 5 MBq (dosimetry studies), respectively, and was recorded steadily during stimulation. This presentation gives a comprehensive survey of the spectral and dose dependent RL properties of a number of luminescent materials like LiF:Mg,Ti, Al2O3:C, CaSO4:Dy, CaF2:Mn, Li2B4O7:Mn, BeO and ZnS:Ag. The spectral and dose dependent results were compared with thermoluminescence as well as other RL studies.
Erfurt
G
G
Sächsische Akademie der Wissenschaften zu Leipzig, Quaternary Geochronology Section, Freiberg, Germany. gerfurt@physik.tu.freiburg.de
Krbetschek
M R
MR
D000537:Aluminum Oxide / Q000737:chemistry / Q000528:radiation effects; D001608:Beryllium / Q000737:chemistry / Q000528:radiation effects; D001894:Borohydrides / Q000737:chemistry / Q000528:radiation effects; D002124:Calcium Fluoride / Q000737:chemistry / Q000528:radiation effects; D002133:Calcium Sulfate / Q000737:chemistry / Q000528:radiation effects; D005459:Fluorides / Q000737:chemistry / Q000528:radiation effects; D018020:Lithium Compounds / Q000737:chemistry / Q000528:radiation effects; D008163:Luminescent Measurements; D011854:Radiochemistry; D013053:Spectrophotometry; D013819:Thermoluminescent Dosimetry / Q000379:methods*; D019287:Zinc Sulfate / Q000737:chemistry / Q000528:radiation effects
D001894:Borohydrides; D018020:Lithium Compounds; C027651:lithium fluoride; C032777:beryllium oxide; D019287:Zinc Sulfate; C040936:lithium borohydride; D000537:Aluminum Oxide; D002124:Calcium Fluoride; D001608:Beryllium; D005459:Fluorides; D002133:Calcium Sulfate