Abstract
In this study, we developed and characterized an integrated fiber-optic sensor for the remote detection of alpha radiation emitted from radioactive contamination in areas relatively inaccessible by radiation workers. The fiber-optic sensor consisted of an epoxy-resin supporter and a sensing probe attached to it. The epoxy-resin supporter to hold the optical fiber tightly was fabricated by using epoxy-resin and a small amount of hardener. The sensing probe was fabricated by mixing epoxy-resin with inorganic scintillator ZnS(Ag) powder and solidifying the mixture. Then, the sensing probe was attached to the epoxy-resin supporter. As a light guide, an optical fiber, which was also compatible with the epoxy-resin, was used. The optical fiber was submerged in the epoxyresin supporter before solidification to make it in an integral form to minimize the loss of scintillation light due to incomplete connections between them. The four assembled fiber-optic sensors with sensing probes whose density thicknesses of ZnS(Ag) were 10, 15, 20 and 25 mg/cm2, respectively, were evaluated in terms of the total counts of alpha radiation to determine the optimum density thickness of ZnS(Ag). From the evaluation, a density thickness of 15 mg/cm2 was found to be the best for detecting alpha radiation.
Similar content being viewed by others
Rreferences
International Atomic Energy Agency, IAEA Safety Reports Series No. 45, 19 (2005).
C. H. Park, B. K. Seo and J. H. Moon, Rad. Meas. 46, 687 (2011).
S. Yamamamoto and T. Iida, Nucl. Instr. and Meth. in Phys. Res. A 418, 387 (1998).
K. W. Jang, B. S. Lee and J. H. Moon, Appl. Rad. and Isot. 69, 711 (2007).
A. F. Fernandez et al., Fusion Engin. Design 83, 50 (2008).
S. A. McElhaney, J. A. Ramsey, M. L. Bauer and M. M. Chiles, IEEE Trans. Nucl. Sci. 37, 868 (1990).
C. H. Park, B. K. Seo, D. G. Lee and K. W. Lee, in 2008 Spring Meeting of Korean Radioactive Waste Society (Seoul, Korea, May 22–23, 2008).
C. H. Park, B. K. Seo, K. W. Lee, D. G. Lee and J. H. Jung, in 2007 Spring Meeting of Korean Radioactive Waste Society (Gyeongju, Korea, May 30–June 1, 2007).
G. F. Knoll, Radiation Detection and Measurement, 4th ed. (John Wiley & Sons, New York, 2010), p. 245.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Park, C.H., Moon, J.H. & Seo, B.K. Development and characterization of the integrated fiber-optic sensor for remote detection of alpha radiation. Journal of the Korean Physical Society 63, 1720–1723 (2013). https://doi.org/10.3938/jkps.63.1720
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.63.1720