Journal of Radiation Safety and Measurement

Journal of Radiation Safety and Measurement

Experimental evaluation of the linearity response of a new calorimeter based on Polystyrene/Multi-Walled Carbon Nanotube nanocomposite in the radiation processing region

Document Type : Conference Paper

Authors
Armin Mosayebi 1
Shahryar Malekie 1
Abbas Rahimi 2
Farhood Ziaie 3
Nasrin Sheikh 3
1 Radiation Application Research School, Nuclear Science and Technology Research Institute, Karaj, Iran
2 Radiation Protection Office, Iran Nuclear Regulatory Authority (INRA), Atomic Energy Organization, Tehran, Iran
3 Radiation Application Research School, Nuclear Science and Technology Research Institute, Tehran, Iran
Abstract
In the previous studies, a new type of gamma radiation dosimeter based on polymer/carbon nanostructures nanocomposite has been presented by the authors and also the dosimetric properties for this type of dosimeter have been investigated. In this experimental work, the electrical resistance of 0.28wt% Polystyrene/Multi-Walled Carbon Nanotube (PS/MWCNT) nanocomposite was measured at the temperature range of 25-75 °C. The work of a calorimeter is based on increasing the temperature of the sensitive volume due to irradiation. Results showed that with increasing the temperature, the electrical resistance of the nanocomposite was increased linearly and due to calorimetric relationships could be used as a calorimeter in the radiation processing region to measure the absorbed dose up to about 50 kGy.   
Keywords
Polystyrene/Multi-Walled Carbon Nanotube nanocomposite
Calorimeter
Electrical resistance
Radiation processing
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