SEARCH WITHIN CONTENT
Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 2, Issue 3, Pages 490-502, DOI: https://doi.org/10.21307/ijssis-2017-363
License : (CC BY-NC-ND 4.0)
Published Online: 03-November-2017
Poly Methyl MethAcrylate (PMMA) based plastic optical fibres offer a low cost radiation monitoring solution with a wide dose range, capable of providing real-time, online information. The sensitivity of the fibre to ionising radiation is shown to be dependant on wavelength, with the sensitivity increasing with decreasing wavelength, and so by carefully selecting the monitoring wavelength, the desired sensitivity and dose range can be achieved. The fibres exhibit high sensitivity, up to 0.6dBm- 1/kGy, and are capable of monitoring dose ranges between 30Gy and 45kGy. This exceeds the sensing range of all commercially available PMMA slab sensors, allowing it to be used for a wide range of applications.
1. Ziemann, O., et al., POF Handbook - Optical Short Range Transmission Systems. 2nd ed. 2008, Berlin: Springer.
2. Weinert, A., Plastic Optical Fibers, ed. B.a.M. Siemens Aktiengesellschaft. 1999: Publicis MCD Verlag.
3. Harwell Dosimeters Ltd. http://www.harwell-dosimeters.co.uk. [cited 2005 25 July 2005]; Available from: http://www.harwell-dosimeters.co.uk.
4. McLaughlin, W.L., et al., Dosimetry for radiation processes. 1989: Taylor & Francis. 251.
5. O’Keeffe, S., et al., A Review of Optical Fibre Radiation Dosimeters, Sensor Review, 2008. 28(2): p. 136-142.
6. Yoshida, H. and T. Ichikawa, Temperature effect on the radiation-degradation of poly(methyl methacrylate). Radiation Physics and Chemistry, 1995. 46(4-6, Part 1): p. 921.
7. Ichikawa, T., Mechanism of radiation-induced degradation of poly(methyl methacrylate) -- temperature effect. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1995. 105(1-4): p. 150.