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Dose determination by ESR in an accident, using cotton fabric

  • R. Venkataramani
  • S. K. Mehta
  • M. R. Iyer
  • V. Natarajan
  • M. D. Sastry
Article

Abstract

Accidental exposure dose assessment by electron spin resonance (ESR) technique from the free radicals generated in a cotton handkerchief has been attempted in this investigation. The cotton handkerchief, a common material carried by individuals, was taken as the medium for free radical estimation. About 55 mg of the irradiated piece of cloth was loaded into a quartz tube and the dose dependence of the ESR signal at g=2.0026 was measured at room temperature, using a Bruker ESP-300 ESR spectrometer in X-band (9.74 GHz). The intensity of this signal was found to be proportional to the dose in the range of 1–1000 Gy. The stability of the free radicals with time of storage was followed. Dependence of dose rate as well as the presence of water on the yield of free radicals were also investigated.

Keywords

Physical Chemistry Quartz Inorganic Chemistry Free Radical Electron Spin Resonance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Akadémiai Kiadó 1993

Authors and Affiliations

  • R. Venkataramani
    • 1
  • S. K. Mehta
    • 1
  • M. R. Iyer
    • 1
  • V. Natarajan
    • 2
  • M. D. Sastry
    • 2
  1. 1.Radiation Safety Systems DivisionBhabha Atomic Research CentreBombayIndia
  2. 2.Radiochemistry DivisionBhabha Atomic Research CentreBombayIndia

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