Keywords
How to Cite
Abstract
The gamma dosimetric response of the Methylene Blue (MB) in Polyvinyl Alcohol (PVA) films was investigated. The spectrophotometric analysis was done to observe the changes in these films at pre and post irradiation. The PVA based films were irradiated using Cs137 γ-source within dose range (100-200) kGy. The effect of concentration of dyes, pH of the dyed solutions and thickness of dyed films were employed as the dosimetric parameters in this study. The stability of MB-PVA films before and after irradiation was examined at ambient temperature. MB-PVA films were found to be light sensitive. Owing to simple preparation and absence of any toxic solvents during preparation, PVA based films were found to be docile for large-scale production and application for routine irradiation processes of medical equipments.
References
Hussain T, Hussain MY, Shahbaz M, Inam-ul-Haq, Farooq H, Ali S. Radiolysis of commercial dyes in aqueous solutions to produce dosimeters for gamma dosimetry. J Basic App Sci 2012; 8(2): 315-18.
Kattan M, Daher Y, Alkassiri H. A high-dose dosimeter-based polyvinyl chloride dyed with malachite green. Radiat Phys Chem 2007; 76: 1195-99. http://dx.doi.org/10.1016/j.radphyschem.2006.12.004
Bhat NV, Nate MM, Bhat RM, Bhatt BC. Effect of γ-irradiation on polyvinyl alcohol films doped with some dyes and their use in dosimetric studies. Indian J Pure Appl Phys 2007; 45: 545-48.
Shahzad A, He M-G, Kai He. Diffusion motion of two dimensional weakly coupled complex (Dusty) plasmas. Phys Scripta 2013; 87(3): 035501. http://dx.doi.org/10.1088/0031-8949/87/03/035501
Shahzad A, He M-G. Thermodynamics characteristics of dusty plasmas by using molecular dynamics simulations. Plas Sci Technol 2012; 14(9): 771-77. http://dx.doi.org/10.1088/1009-0630/14/9/01
Mai HH, Solomon HM, Taguchi M, Kojima T. Polyvinyl butyral films containing leuco-malachite green as low-dose dosimeters. Radiat Phys Chem 2008; 77: 457-62. http://dx.doi.org/10.1016/j.radphyschem.2007.06.012
Akhavan A, Sohrabpour M, Sharifzadeh M. Preparation of a new chemical radiochromic film dosimeter. Radiat Phys Chem 2002; 63: 773-75. http://dx.doi.org/10.1016/S0969-806X(01)00610-7
Kovacs A, Baranyai M, Wojnarovits L, Slezsa I, Mclaughlin WI, Miller A, Moussa A. Dose determination with nitro blue tetrazolium containing radiochromic dye films by measuring absorbed and reflected light. Radiat Phys Chem 2000; 57: 711-16. http://dx.doi.org/10.1016/S0969-806X(99)00501-0
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.