Open AccessDevelopment and dosimetric characterization of indigenous PADC for personnel neutron dosimetry
Author(s) -
Rupali Pal,
Vishnu S. Nadkarni,
Diptesh G. Naik,
Mudit Beck,
A.K. Bakshi,
M.P. Chougaonkar,
G. Chourasiya,
Y. S. Mayya,
D.A.R. Babu
Publication year - 2015
Publication title -
nuclear technology and radiation protection
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.31
H-Index - 16
eISSN - 1452-8185
pISSN - 1451-3994
DOI - 10.2298/ntrp1503175p
Subject(s) - materials science , detector , carbonate , neutron , polymerization , detection limit , neutron detection , radiochemistry , nuclear chemistry , polymer , optics , composite material , nuclear physics , chemistry , physics , chromatography , metallurgy
CR-39 is a solid state nuclear track detector, chemically known as poly-allyl-diglycol-carbonate, widely used for personnel neutron monitoring because of its sensitivity to neutrons, excellent optical properties that facilitate the analysis and sufficiently long shelf life. Presently, this detector is imported and is being used for the personnel neutron monitoring programme in India. Hence, an effort was made towards the indigenous development of these detectors. Different chemical processes for the indigenous development of the poly-allyl-diglycol-carbonate detector, such as the synthesis of allyl-diglycol-carbonate monomer and isopropyl-peroxydicarbonate as initiators for the polymerization process, were carried out and are reported in this paper. A method for casting unbroken poly-allyl-diglycol-carbonate sheets sized 25 cm x 15 cm and of a thickness between 500 µm and 800µm was developed. A longer polymerization process also helps to increase neutron sensitivity, reduce the minimum detection limit and increase the signal-to-noise ratio of the detector. The study suggests that it is possible to develop indigenous poly-allyl-diglycol-carbonate detectors with a minimum detection limit of 0.1 mSv and signal-to-noise ratio of 8.0