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Synthesis, characterization and low energy photon attenuation studies of bone tissue substitutes

  • Shailesh Joshi ORCID logo EMAIL logo , P.K. Ajikumar , K. Sivasubramanian and V. Jayaraman
Published/Copyright: December 25, 2019
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Abstract

Epoxy composites with different weight percentages of calcium carbonate and calcium phosphate were synthesized as bone tissue substitutes (BTS) for internal dosimetry. The Fourier-transform infrared spectroscopy analysis confirmed that no chemical reaction occurred between the polymer and the fillers. Thermogravimetric analysis also showed improvement in the thermal properties of the composites due to the fillers. The uniform distribution of fillers in the epoxy matrix was established by X-ray radiography. The attenuation behavior of BTS was probed for low energy γ source 241Am (59.5 keV) using planar HPGe detector. The measured mass attenuation coefficients of BTS were found to match with the values calculated using XCOM software. The radiological properties derived for these composites were found to be on par with those of ICRU-44 cortical bone and B-100 bone equivalent plastic.

Acknowledgments

The authors would like to thank Mrs. I. Vijayalakshmi from the Radiological Safety Division, IGCAR, for the attenuation studies. The authors acknowledge Mr. N. Raghu, Mr. P. Narayana Rao and Mr. Krishna Chaitanya K. of the Quality Assurance Division, IGCAR, for their help in conducting the X-ray radiographic studies. The authors are also thankful to Mr. Ajay Rawat and Mr. S. N. Brahma of the Radiological and Environmental Safety Division, IGCAR, and Dr. Sarita Tripathi of the Fuel Chemistry Division, IGCAR, for their valuable suggestions.

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Received: 2019-05-30
Accepted: 2019-11-04
Published Online: 2019-12-25
Published in Print: 2020-01-28

©2020 Walter de Gruyter GmbH, Berlin/Boston

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