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Title: Radiochromic behaviour of bromocresol green-polyethylene glycol system towards -radiation
Authors: Bera, Anuradha
Ram, Surendra
Singh, S K
Kumar, D
Kacchwaha, A
Tiwari, B L
Vaijapurkar, S G
Keywords: pH Sensitive dye;Detection level;Dose dependence;UV-Vis spectroscopy
Issue Date: Nov-2010
Publisher: NISCAIR-CSIR, India
Abstract: Active BCG-PEG radiochromic liquid system has been formulated for potential application as threshold dosimeter for gamma radiation that can be visually evaluated. PEG concentrations have been varied to see their effect on the radiation sensitivity of these systems. The response characteristics are monitored both visually and by UV-Vis spectrometry. The minimum visually detectable level achieved with the formulated solution is 0.2 kGy, where the solution showed a sharp colour change from green to yellow. The detection level could be moved to the higher side by increasing the concentration of PEG in the formulation. Preliminary dose dependence studies have been carried out in the range 0.3-7.5 kGy/hr.
Page(s): 837-839
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.48(11) [November 2010]

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