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Evaluation of dosimetric characteristics of graphene oxide/PVC nanocomposite for gamma radiation applications

Feizi, S ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1515/ract-2016-2648
  3. Publisher: Walter de Gruyter GmbH , 2017
  4. Abstract:
  5. Graphene oxide-polyvinyl chloride composite was prepared using tetrahydrofuran solvent-assisted dispersion of characterized nano flakes of graphene oxide in polymer matrix. Electrical percolation threshold of GO/PVC nanocomposite was determined via a finite element simulation method with a 2D model and compared with experimental results. A conductive cell with two silver coated walls was designed and fabricated for exploring dosimetric properties of the composite. Some characteristics of the new nanocomposite such as linearity of dose response, repeatability, sensitivity and angular dependence are investigated. According to 2D proposed method, obtained data associated to electrical conductivity of the GO/polymer composite for PVC matrix plotted in different GO weight percentages and had good compatibility (validity) with experimental data. The dose response is linear in the 17-51 mGy dose range and it can be introduced for gamma radiation dosimetry in diagnostic activities. © 2017 Walter de Gruyter GmbH, Berlin/Boston 2017
  6. Keywords:
  7. Dosimetry ; Gamma radiation ; Graphene oxide ; PVC ; Synthesis of GO
  8. Source: Radiochimica Acta ; Volume 105, Issue 2 , 2017 , Pages 161-170 ; 00338230 (ISSN)
  9. URL: https://www.degruyter.com/view/j/ract.2017.105.issue-2/ract-2016-2648/ract-2016-2648.xml