Application of gamma ray scattering technique for non-destructive evaluation of voids in concrete.
This paper describes application of the gamma ray scattering technique for NDE of concrete voids. A novel nonlinear extrapolation method is employed to correct for self-absorption and multiple scattered intensities. The attenuation data obtained from transmission method is employed for reconstruction of scattered images and the results show a good agreement in size and position of the voids with good spatial resolution. Intercomparison of the results of scattering and transmission techniques shows a good agreement in the position of the voids.
Radiological Safety Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, India. priyada@igcar.gov.in
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Priyada
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Ramar
Shivaramu