Study of Solid-State Radiolysis of Behenic, Fumaric, and Sebacic Acids for their Possible Use as Gamma Dosimeters Measured Via ATR-FT-IR Spectroscopy

  • J. Cruz-Castañeda Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), PO Box 70-543, 04510 Mexico City, Mexico; Master’s and PhD Program in Chemical Sciences, National Autonomous University of Mexico (UNAM). PO Box 70-543, 04510 Mexico City, Mexico
  • A. L. Meléndez-López Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), PO Box 70-543, 04510 Mexico City, Mexico; Master’s and PhD Program in Chemical Sciences, National Autonomous University of Mexico (UNAM). PO Box 70-543, 04510 Mexico City, Mexico
  • A. Heredia Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), PO Box 70-543, 04510 Mexico City, Mexico
  • S. Ramosbernal Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), PO Box 70-543, 04510 Mexico City, Mexico
  • A. Negrón-Mendoza Institute of Nuclear Sciences, National Autonomous University of Mexico (UNAM), PO Box 70-543, 04510 Mexico City, Mexico
Keywords: dosimeter, carboxylic acid, gamma radiation, ATR-FT-IR spectroscopy

Abstract

The intensive use of ionizing radiation has promoted the constant investigation of adequate dosimetric systems in the measurement of doses applied in irradiated products. The objective of this work is to propose gamma dosimetric systems, using carboxylic acids in a solid state and measuring the change via infrared spectroscopy (carboxylic acid/ ATR-FT-IR1). We worked with three systems: (1) behenic acid/ATR-FT-IR, (2) sebacic acid/ATR-FT-IR, and (3) fumaric acid/ATR-FT-IR. The change in absorbance corresponding to the stretching vibration frequency of the carbonyl group to the absorbed dose (in the range of kGy) was measured. The results showed that the acid/ATR-FT-IR systems have a linear response with respect to the absorbed dose, for behenic acid/ATR-FT-IR from 0 to 122 kGy, for ATR-FT-IR sebacic acid from 0 to 61 kGy, and for fumaric acid/ATR-FT-IR from 0 to 34 kGy. The results indicated that the linear response of the absorbance dose in the three systems allows us to continue studying other variables to be able to propose them as chemical dosimeters.

References

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Published
2018-08-06
How to Cite
(1)
J. Cruz-Castañeda; A. L. Meléndez-López; A. Heredia; S. Ramosbernal; A. Negrón-Mendoza. Study of Solid-State Radiolysis of Behenic, Fumaric, and Sebacic Acids for Their Possible Use As Gamma Dosimeters Measured Via ATR-FT-IR Spectroscopy. J. Nucl. Phy. Mat. Sci. Rad. A. 2018, 6, 81-85.
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Articles