The β-ray backscattering coefficient for absorbed dose in the medium surface is defined. A method for measuring
β-ray
backscattring coefficient by ultrathin TLD is described. Among those media measured
the backscattering coefficients of polyethylene and paper were the least. Some regularity and applications of the backscattering coefficients were discussed.
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references
M. J. Aitken , Thermoluminescence dating , Academic Press , 1985 , p. 122 .