TY - JOUR
T1 - A short-time fading study of Al2O3:C
AU - de Freitas Nascimento, Luana
AU - Vanhavere, Filip
AU - Honorio da Silva, Edilaine
AU - De Deene, Yves
A2 - Struelens, Lara
N1 - Score = 10
PY - 2015/1
Y1 - 2015/1
N2 - This paper studies the short-time fading from Al2O3:C by measuring optically stimulated luminescence (OSL) signals (Total OSL: TOSL, and Peak OSL: POSL) from droplets and Luxel™ pellets. The influence of various bleaching regimes (blue, green and white) and light power is compared. The fading effect is the decay of the OSL signal in the dark at room temperature. Al2O3:C detectors were submitted to various bleaching regimes, irradiated with a reference dose and read out after different time spans. Investigations were carried out using 2 mm size droplet detectors, made of thin Al2O3:C powder mixed with a photocured polymer. Tests were compared to Luxel™-type detectors (Landauer Inc.). Short-time post-irradiation fading is present in OSL results (TOSL and POSL) droplets for time spans up to 200 s. The effect of short-time fading can be lowered/removed when treating the detectors with high-power and/or long time bleaching regimes; this result was observed in both TOSL and POSL from droplets and Luxel™.
AB - This paper studies the short-time fading from Al2O3:C by measuring optically stimulated luminescence (OSL) signals (Total OSL: TOSL, and Peak OSL: POSL) from droplets and Luxel™ pellets. The influence of various bleaching regimes (blue, green and white) and light power is compared. The fading effect is the decay of the OSL signal in the dark at room temperature. Al2O3:C detectors were submitted to various bleaching regimes, irradiated with a reference dose and read out after different time spans. Investigations were carried out using 2 mm size droplet detectors, made of thin Al2O3:C powder mixed with a photocured polymer. Tests were compared to Luxel™-type detectors (Landauer Inc.). Short-time post-irradiation fading is present in OSL results (TOSL and POSL) droplets for time spans up to 200 s. The effect of short-time fading can be lowered/removed when treating the detectors with high-power and/or long time bleaching regimes; this result was observed in both TOSL and POSL from droplets and Luxel™.
KW - Optically stimulated luminescence
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/ezp_138163
UR - http://knowledgecentre.sckcen.be/so2/bibref/12191
U2 - 10.1016/j.radphyschem.2014.06.032
DO - 10.1016/j.radphyschem.2014.06.032
M3 - Article
SN - 0969-806X
VL - 106
SP - 26
EP - 32
JO - Radiation Physics and Chemistry
JF - Radiation Physics and Chemistry
IS - 1
ER -