• Journal of Radiation Research and Radiation Processing
  • Vol. 42, Issue 6, 060208 (2024)
Yuan TIAN1, Shitang HUANG2, and Jun MA1、*
Author Affiliations
  • 1College of Nuclear Science and Technology,University of Science and Technology of China,Hefei 230026,China
  • 2College of Life Sciences,Peking University,Beijing 100871,China
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    DOI: 10.11889/j.1000-3436.2024-0089 Cite this Article
    Yuan TIAN, Shitang HUANG, Jun MA. Tough nitrate-based radiation discoloration composite hydrogel dosimeter[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060208 Copy Citation Text show less

    Abstract

    In the clinical practice of radiotherapy,how to quickly,safely,accurately and economically monitor the irradiation dose or implement quality assurance measures before irradiation has always been a research hotspot in this research field. In this study,the reaction between nitrate ions and free radicals produced by water radiolysis was innovatively used as a dose-response mechanism. A radiation-grafted silica gel acrylic composite was selected as a matrix material to develop a tough radiation composite hydrogel dosimeter with high mechanical strength. The experimental results showed that the hydrogel dosimeter exhibited the best dose-response linear correlation under a sodium nitrate concentration of 0.5 mol/L and sodium formate concentration of 2.5×10-3 mol/L. In addition,the prepared hydrogel dosimeter not only exhibited excellent puncture resistance,non-brittleness,high pressure resistance,and adjustable mechanical properties,but also displayed impressive time stability in practical applications,indicating potential for commercialization.
    Yuan TIAN, Shitang HUANG, Jun MA. Tough nitrate-based radiation discoloration composite hydrogel dosimeter[J]. Journal of Radiation Research and Radiation Processing, 2024, 42(6): 060208
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