The importance of fabric structure in the construction of 2D textile radiation dosimeters

A range of fabrics was selected for examination as material for construction of 2D radiation dosimeters as a consequence of previously obtained results confirming the possibility of radiation dose measurement with the modified polyamide textiles. These fabrics were surface finished with either 2,3,5-triphenyltetrazolium chloride (TTC) or nitrotetrazolium blue chloride (NBT). Under UV light irradiation the fabrics change colour to reddish (TTC) or bluish (NBT). The tinge intensity depends on the absorbed dose, which was analysed through the reflectance of light measurements. Some parameters of the samples are discussed in this work, such as dose sensitivity, quasi-linear and dynamic dose response, which allowed the samples that were potentially attractive for 2D dosimetry to be selected. The textile samples were assessed in terms of 2D measurements with the application of a computer operated scanner. The accuracy of 2D measurements was found to depend on the type and structure of fabric and tinge distribution after irradiation as well as additional polymer finishing of the textiles.

► A range of fabrics was examined for 2D textile dosimetry.
► Polyamide, cotton, polyacrylonitrile, polyester/cotton revealed attractive features.
► Tinge distribution and fabrics structure impacts on accuracy.
► Polyamides serve the purpose the best.