TY - JOUR
T1 - Real-time gamma dosimetry using PMMA optical fibres for applications in the sterilization industry
AU - O'Keeffe, S.
AU - Fernandez, Alberto Fernandez
AU - Fitzpatrick, Colin
AU - Brichard, B.
AU - Lewis, E.
PY - 2007/10/1
Y1 - 2007/10/1
N2 - The use of polymethylmethacrylate (PMMA)-based plastic optical fibre as an intrinsic real-time gamma dosimeter is investigated. The radiation-induced attenuation of the fibres is monitored in situ during the course of irradiation. The PMMA fibre exhibited a linear radiation- induced attenuation response at various wavelengths for a dose range of 50 Gy to 50 kGy. The sensitivity, ranging from 0.4 dBm-1 kGy-1 to 0.03 dBm-1 kGy-1, is wavelength dependent, with high sensitivity at the lower wavelengths.
AB - The use of polymethylmethacrylate (PMMA)-based plastic optical fibre as an intrinsic real-time gamma dosimeter is investigated. The radiation-induced attenuation of the fibres is monitored in situ during the course of irradiation. The PMMA fibre exhibited a linear radiation- induced attenuation response at various wavelengths for a dose range of 50 Gy to 50 kGy. The sensitivity, ranging from 0.4 dBm-1 kGy-1 to 0.03 dBm-1 kGy-1, is wavelength dependent, with high sensitivity at the lower wavelengths.
KW - Gamma radiation dosimetry
KW - Optical fibre sensor
KW - Plastic optical fibre
UR - http://www.scopus.com/inward/record.url?scp=34547672421&partnerID=8YFLogxK
U2 - 10.1088/0957-0233/18/10/S19
DO - 10.1088/0957-0233/18/10/S19
M3 - Article
AN - SCOPUS:34547672421
SN - 0957-0233
VL - 18
SP - 3171
EP - 3176
JO - Measurement Science and Technology
JF - Measurement Science and Technology
IS - 10
ER -