TY - JOUR
T1 - Radiophotoluminescence and optically stimulated luminescence from Al2O3: C,Mg films using a 1D modular reader
AU - De Freitas Nascimento, Luana
AU - Karampiperi, Maria
AU - de Oliveira Flores, Joao Pedro
AU - Vanhavere, Filip
N1 - Score=10
PY - 2017/11/1
Y1 - 2017/11/1
N2 - The radiophotoluminescence (RPL) and optically stimulated luminescence (OSL) combined signals from Al2O3:C,Mg films were investigated in the dose range of interest in radiotherapy medical dosimetry (0.1 e40 Gy). The results showed that the RPL signal is linear over the dose range investigated. The systems based on red excitation have a better dose detection range (starting from 0.2Gy), compared to the system based on UV excitation (1 Gy). The RPL dose measurements are performed using a modular system by illumination of the Al2O3:CMg detectors with 335 nm or 650 nm light and measuring the intensity of the 750 nm fluorescence, while OSL is measured using the modular system with blue 470 nm light. We demonstrated the feasibility of combining RPL and OSL readouts by proposing a protocol where one can acquire cumulative dose response (RPL) and dose reproducibility (OSL). The main challenge was to account for sensitization caused by accumulated dose when using the OSL technique, without affecting the RPL readouts.
AB - The radiophotoluminescence (RPL) and optically stimulated luminescence (OSL) combined signals from Al2O3:C,Mg films were investigated in the dose range of interest in radiotherapy medical dosimetry (0.1 e40 Gy). The results showed that the RPL signal is linear over the dose range investigated. The systems based on red excitation have a better dose detection range (starting from 0.2Gy), compared to the system based on UV excitation (1 Gy). The RPL dose measurements are performed using a modular system by illumination of the Al2O3:CMg detectors with 335 nm or 650 nm light and measuring the intensity of the 750 nm fluorescence, while OSL is measured using the modular system with blue 470 nm light. We demonstrated the feasibility of combining RPL and OSL readouts by proposing a protocol where one can acquire cumulative dose response (RPL) and dose reproducibility (OSL). The main challenge was to account for sensitization caused by accumulated dose when using the OSL technique, without affecting the RPL readouts.
KW - Radiophotoluminescence (RPL)
KW - Optically stimulated luminescence (OSL)
KW - Al2O3:C,Mg
KW - 1D modular reader
UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/28470365
U2 - 10.1016/j.radmeas.2017.02.006
DO - 10.1016/j.radmeas.2017.02.006
M3 - Special issue
VL - 106
SP - 218
EP - 224
JO - Radiation Measurements
JF - Radiation Measurements
SN - 1350-4487
T2 - SSD18 - 18th International Conference on Solid State Dosimetry
Y2 - 3 July 2016 through 8 July 2016
ER -