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Radiation Protection Dosimetry 34:47-50 (1990)
© 1990 Oxford University Press
Neutron Dosimetry by UV and IR Spectrophotometry of the Newly Developed Dyed ECE Tracks
New, large and high-contrasted dyed ECE recoil tracks have been successfully developed. The chief reason for this development has been the provision of large photon-absorbing sites on a non-absorbing unaffected polymer surface for UV and IR spectrophotometry. In this approach, ECE recoil tracks in polycarbonate were dyed using our optimised conditions; sensitisation in 20% by weight acrylic acid at 75 oC for 3.5 h and dyeing in 3% by weight eosin at 95 oC for 4 h. Spectrophotometry by UV and IR, track counting and optical densitometry were applied to the samples. These preliminary studies showed some promise for UV absorbance measurements for routine large-scale applications, the results of which are presented and discussed.