TY - GEN
T1 - Effects of magnetic field on an optical fibre radiation dosimeter
AU - O'Keeffe, Sinead
AU - Chen, Lingxia
AU - Lewis, Elfed
AU - Grattan, Mark
AU - Hounsell, Alan
AU - Whitten, Glenn
AU - Schettino, Giuseppe
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/1/5
Y1 - 2016/1/5
N2 - This paper presents the initial investigation into the effects of magnetic field on the luminescence response of a plastic optical fibre based dosimeter. The optical fibre sensor is based on radioluminescence, whereby a PMMA (polymethyl methacrylate) plastic optical fibre is coated with radiation sensitive inorganic scintillator, Terbium-doped Gadolinium Oxysulphide (Gd2O2S:Tb), that fluoresce when exposed to ionising radiation. The sensor has shown a non-linear decrease in optical intensity for increasing magnetic field. However this effect demonstrated good repeatability, allowing for the possibility of using correction factors in the employment of such sensors near known magnetic fields.
AB - This paper presents the initial investigation into the effects of magnetic field on the luminescence response of a plastic optical fibre based dosimeter. The optical fibre sensor is based on radioluminescence, whereby a PMMA (polymethyl methacrylate) plastic optical fibre is coated with radiation sensitive inorganic scintillator, Terbium-doped Gadolinium Oxysulphide (Gd2O2S:Tb), that fluoresce when exposed to ionising radiation. The sensor has shown a non-linear decrease in optical intensity for increasing magnetic field. However this effect demonstrated good repeatability, allowing for the possibility of using correction factors in the employment of such sensors near known magnetic fields.
KW - magnetic field effects
KW - optical fibre sensor
KW - radiation dosimeter
KW - radioluminescence
KW - radiotherapy
UR - http://www.scopus.com/inward/record.url?scp=85010951531&partnerID=8YFLogxK
U2 - 10.1109/ICSENS.2016.7808772
DO - 10.1109/ICSENS.2016.7808772
M3 - Conference contribution
AN - SCOPUS:85010951531
T3 - Proceedings of IEEE Sensors
BT - IEEE Sensors, SENSORS 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 15th IEEE Sensors Conference, SENSORS 2016
Y2 - 30 October 2016 through 2 November 2016
ER -