Methyl thymol blue solution and film dosimeter for high dose measurements
Autor: | K.M. Abumurad, Khalid A. Rabaeh, Molham M. Eyadeh, Sarah A. Aljammal |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Materials science
High dose dosimeter General Physics and Astronomy Dose profile 02 engineering and technology Absorbance 01 natural sciences Polyvinyl alcohol chemistry.chemical_compound Spectrophotometry 0103 physical sciences medicine Irradiation 010302 applied physics Dosimeter medicine.diagnostic_test Thymol blue Radio-chromic dosimeter 021001 nanoscience & nanotechnology lcsh:QC1-999 chemistry Absorbed dose Methyl thymol blue Color bleaching 0210 nano-technology lcsh:Physics Nuclear chemistry |
Zdroj: | Results in Physics, Vol 23, Iss, Pp 103980-(2021) |
ISSN: | 2211-3797 |
Popis: | A novel radio-chromic solutions and polyvinyl alcohol (PVA) films with different concentrations of methyl thymol blue (MTB) dye have been investigated and studied for high dose applications. The MTB dosimeters were exposed to irradiation using gamma ray 60 Co source from 2.5 to 50 kGy for film, and from 0.10 to 2.5 kGy for solutions. The radio-chromic dosimeters were investigated using ultraviolet visible (UV-Vis) spectrophotometry. The effect of MTB dye concentration, relative humidity, and stability of the dosimeters were investigated. The results show that the dose response sensitivity of the dosimeters improved significantly with increasing the absorbed dose and MTB dye concentrations. The un-irradiated and irradiated dosimeters show a perfect stability for one week. Hence, these films can be used as dosimeters in industrial radiation processing. The study shows that the useful dose range is in the range of 2.5-20 kGy and 0.1-1.2 kGy, for film and solution dosimeters, respectively. |
Databáze: | OpenAIRE |
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