ORIGINAL ARTICLE
Year : 2016 | Volume
: 39 | Issue : 4 | Page : 199--203
Development of chloroform: Methyl red dosimeter for blood irradiation dosimetry
Sandip Mondal1, SH Shinde1, MS Kulkarni1, S Adhikari2
1 Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India
2 Radiation and Photochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, Maharashtra, India
Correspondence Address:
Sandip Mondal
1-130 H, MOD Labs, Radiation Standards Section, Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai - 400 085, Maharashtra
India
The use of chloroform (CHCl3) solution containing methyl red (CMR) was investigated for the dosimetric application. This is based on the radiolytic formation of hydrochloric acid from CHCl3, which protonates a pH indicator, namely, methyl red, and leads to a visual change in color. The optimum concentration of methyl red and wavelength for absorption maxima for the dosimeter were established at 2 × 10−4 mol/dm 3 and 550 nm, respectively. The useful dose range for the dosimeter is 5–50 Gy. The reproducibility of the system is found to be within ±5%. Pre- and post-irradiation stability of the dosimeter solution was also investigated for 1 month and 24 h, respectively. The importance of a chemical dosimeter in the dose range of 5–50 Gy prominently lies in applications such as blood irradiation. Thus, dose mapping of the Blood Irradiator-2000 was carried out using CMR dosimeter. These dose values were further confirmed using a reference standard Fricke dosimeter.
How to cite this article:
Mondal S, Shinde S H, Kulkarni M S, Adhikari S. Development of chloroform: Methyl red dosimeter for blood irradiation dosimetry.Radiat Prot Environ 2016;39:199-203
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How to cite this URL:
Mondal S, Shinde S H, Kulkarni M S, Adhikari S. Development of chloroform: Methyl red dosimeter for blood irradiation dosimetry. Radiat Prot Environ [serial online] 2016 [cited 2023 Mar 31 ];39:199-203
Available from: https://www.rpe.org.in/article.asp?issn=0972-0464;year=2016;volume=39;issue=4;spage=199;epage=203;aulast=Mondal;type=0 |
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