Dosimetric characteristics of a Radiochromic polyvinyl butyral film containing 2,4-hexadiyn-1,6-bis(n-butyl urethane)

Abdel-Fattah, A.A.; Soliman, Yasser S.; Bayomi, A.M.M.; Abdelkhalek, Ahmed

doi:10.1016/j.apradiso.2013.12.023

Cited by 10 publications

(5 citation statements)

References 17 publications

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“…Therefore, it is necessary to ensure the accuracy of the radiation dose [ 12 , 13 ]. Many materials have been developed and explored as radiation dosimetry, evaluated under different dose ranges [ 14 , 15 , 16 ]. A film-based radiation dosimetry can be developed from a mixture of polymers, with a dye as indicator.…”

Section: Introductionmentioning

confidence: 99%

“…A film-based radiation dosimetry can be developed from a mixture of polymers, with a dye as indicator. The polymer materials that have been explored include polyvinyl alcohol (PVA) [ 5 , 13 ]; polycarbonate [ 17 ]; polyvinyl chloride [ 18 ]; and polyvinyl butyric [ 14 ]. Meanwhile, coloring materials as indicators include: methylene blue and methylene red [ 4 ]; thymolphthalein (TP) [ 5 ]; ethyl violet and blue bromophenol [ 19 ]; cresol red (CR) [ 20 ]; tetrazolium violet [ 21 ]; and methyl viologen [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

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Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry

Doyan

Susilawati

Prayogi³

et al. 2021

Polymers

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This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The film was prepared via the solvent-casting method with varying concentrations of TCE. Film samples were exposed to radiation from a γ-rays radiation source of 60Cobalt isotope. Color changes before and after γ-rays irradiation were observed, and the optical properties of the polymer films were investigated by spectrophotometry. Results show that increasing the radiation dose physically changed the color of the polymer film, from purple (pH > 8.8) without radiation (0 kGy) to yellow (almost transparent) (2.8 < pH < 7.2) at the highest dose (12 kGy). The concentration of acid formed due to irradiation increased with the increase in irradiation doses and at higher TCE content. The critical doses of PVA-TCE composites decreased linearly with the increase of TCE composition, facilitating an easy calibration process. The dose response at 438 nm increased exponentially with increasing radiation dose, but showed an opposite trend at the 575 nm band. An increase in the TCA concentration indicated a decrease in the absorption edge and an increase in activation energy, but both decreased for all TCE concentrations at higher doses. The energy gap for the direct and the indirect transitions decreased with increasing TCE concentration and γ-rays radiation dose. The results of this study demonstrated the potential application of PVA-TCE-CR polymer film as γ-rays irradiation dosimetry in a useful dose range of 0–12 kGy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry

Doyan

Susilawati

Prayogi³

et al. 2021

Polymers

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“…These film dosimeters depend on permanent change in color or color bleaching due to a radiation-induced chemical changes. Radiochromic dosimeter films are particularly successful for routine dosimetry and have been used extensively in industrial radiation processing (Kovacs et al , 1998 ; Abdel-Fattah et al , 2014; Raouafi et al , 2018 ; Oberoi et al , 2019).…”

Section: Introductionmentioning

confidence: 99%

Dosimetric evaluation of methyl red radiochromic film for radiation processing

Zahrany

Rabaeh

Eyadeh

et al. 2020

PRT

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Purpose The purpose of this paper is to present a radiochromic film dosimeter containing polyvinyl alcohol (PVA) matrix and various concentrations of methyl red (MR) dye for high dose measurements. Design/methodology/approach The MR-PVA films were exposed to irradiation up to 60 kGy using 60Co source of gamma ray. The ultraviolet and visible regions (UV/VIS) spectrophotometry were used to examine the optical density of pre-and post-irradiated dosimeters at 424 nm. Findings The dose sensitivity of MR-PVA films increases significantly with increasing MR dye concentrations in the dose range of 5 to 60 kGy. The impact of relative humidity, irradiation temperature, dose rate and the stability of the films has been analyzed. The overall uncertainty of the MR-PVA film dosimeter is 6.12% (Double Standard-deviation, 95% confidence level). Practical implications It was found that the MR-PVA films may be used as high dose dosimeter with an acceptable overall uncertainty in routine industrial radiation processing. Originality/value The color bleaching of irradiated MR-PVA films in terms of specific absorbance curves increases significantly with increasing absorbed dose up to 60 kGy.

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“…Dosimetry is a key point in quality control of radiation processing to assure that uniform and correct radiation doses are delivered to a region of interest. Therefore, many types of dosimetery systems with different dose sensitivities and dose ranges are used for routine radiation applications (Soares, 2006; Abdel-Fattah et al , 2014; Aldweri et al , 2017). The suitable dosimeter would be simple to use and read in radiation facilities with an acceptable accuracy and precision (Basfar et al , 2012; Widodo et al , 2019).…”

Section: Introductionmentioning

confidence: 99%

Optical evaluation of dithizone solution as a new radiochromic dosimeter

Rabaeh

Basfar

2020

PRT

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Purpose The purpose of this paper is to propose a new dithizone solution dosimeter for high radiation applications such as polymers applications and food irradiation. Design/methodology/approach Gamma-rays cell of Co-60 source with 8.4 kGy/h dose rate was used to irradiate the dithizone solutions at different irradiation temperatures. The optical measurements of unirradiated and irradiated dithizone dye solution dosimeters were performed using a UV/VIS spectrophotometer at absorption peaks of 421 and 515 nm. Findings The new dosimeter improved significantly with the increase of dithizone dye concentrations from 0.025 to 0.1 mM. The dosimeter shows a perfect pre- and post-irradiation stability after irradiation for five days. Because of irradiation temperature dependence, the dithizone solution dosimeter should be corrected under actual processing conditions. Practical implications Dosimetry is a key point in quality control of radiation processing to assure that uniform and correct radiation doses are delivered to a region of interest. Therefore, this study introduces a dithizone solution dosimeter for high-dose radiation applications such as food irradiation, polymers applications and agriculture. Originality/value Ionizing radiation interacted with the ethanol solvent, resulting in the formation of free radicals, then these free radicals interacted with the dithizone molecule and changed the dye color from yellow to orange.

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Dosimetric characteristics of a Radiochromic polyvinyl butyral film containing 2,4-hexadiyn-1,6-bis(n-butyl urethane)

Cited by 10 publications

References 17 publications

Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry

Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry

Dosimetric evaluation of methyl red radiochromic film for radiation processing

Optical evaluation of dithizone solution as a new radiochromic dosimeter

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