Dose determination with nitro blue tetrazolium containing radiochromic dye films by measuring absorbed and reflected light

Kovács, A.; Baranyai, M.; Wojnárovits, László; Slezsák, I; McLaughlin, W.L.; Miller, Arne; Moussa, A.

doi:10.1016/s0969-806x(99)00501-0

Cited by 28 publications

(8 citation statements)

References 6 publications

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“…Due to their sensitivity towards various influence factors (dose rate, light, humidity, temperature etc.) these are used for quantitative purposes [1]. A number of chemical and physical changes are caused in the exposed material by ionizing radiations [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Radiation Induced Decoloration of Reactive Dye in PVA Films for Film Dosimetry

Hussain¹

2021

J. Basic Appl. Sci.

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The investigation of film dosimeters made from polyvinyl alcohol (PVA) films dyed with methyl orange (MO) to enable their use in high dose radiation processing applications was studied. The dosimetric change in these films at pre and post irradiation was studied spectrophotometrically. Radiolytic bleaching was observed in PVA aided films exposed with Cs 137-source in dose range of 100-200kGy. The effects of pH, dye concentration and film thickness on the radiation response of the film dosimeters were discussed. The stability of MO-PVA films before and after exposure of radiation was also examined at ambient temperature and was found to be higher for long times at pre and post irradiation stages.

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Section: Introductionmentioning

confidence: 99%

Radiation Induced Decoloration of Reactive Dye in PVA Films for Film Dosimetry

Hussain¹

2021

J. Basic Appl. Sci.

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“…Radiochromic films based on the -initiated reduction of tetrazolium salts into formazans (Basfar et al, 2012(Basfar et al, , 2011Emi-Reynolds et al, 2007;Kovács et al, 2000;Kozicki et al, 2018), taking advantage of the radiolytic cleavage of the C-H bond in Ar 3 C-H (Ar = aryl) compounds such as leucomalachite green and leuco crystal violet dyes (Alqathami et al, 2013;Mai et al, 2008;Soliman et al, 2014a;Soliman and Abdel-Fattah, 2013), or making use of the rupture of the C-CN bond in Ar 3 C-CN compounds such as pararosaniline cyanide, new fuchsine cyanide, and hexa(hydroxyethyl)pararosaniline cyanide dyes (Beshir et al, 2001;McLaughlin et al, 1985;Miller et al, 2000Miller et al, , 1988Miller and Mclaughlin, 1980) have been explored for dosimetry purposes in various radiation technologies. In addition, radiation-sensitive compounds such as diacetylenes (DAs) are key materials for developing film dosimeters/sensors useful in a wide range of irradiation applications (Abdel-Fattah and Soliman, 2017;Chu et al, 1990;Devic, 2011;Patel, 1981;Soliman et al, 2013a;Soliman et al, 2018;Watanabe et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

1,10-Bis(diphenylamino)-4,6-decadiyne as an active component of a radiochromic film dosimeter

Soliman

Abdel-Fattah

Dutremez

2021

Radiation Physics and Chemistry

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Gamma-irradiation processes are very important tools for minimizing microbial load in dry food, inhibiting the proliferation of T-lymphocytes in blood, and for the sterilization of medical devices. To this end, a composite film dosimeter made of a radiation-sensitive monomer, 1,10-bis(diphenylamino)-4,6-decadiyne (DPD), embedded in poly(vinyl alcohol) was prepared using an automatic film applicator system. This polymeric film undergoes a color change from pale yellow to deep orange upon γ-irradiation due to topochemical polymerization of the DPD monomer. This color change is proportional to the amount of absorbed dose. With increasing absorbed doses, gradual disappearance of the  C≡C Raman band of the C≡C-C≡C chemical groups is observed, and new  C≡C and  C=C bands ascribed to the formation of a polydiacetylene with an enyne structure are detected. The irradiated films exhibited two absorption maxima at 470 and 502 nm as measured by UV-Vis spectrophotometry, and the intensities of these bands increased with increasing absorbed doses. Analysis of these films using a high-resolution flatbed scanner (2400 dpi) showed an increase in optical density with increasing absorbed doses up to 269.1 kGy. Stability checks revealed that the irradiated films underwent an increase in the color intensity by ≈3.1% over 50 days of storage. In addition, relative humidities in the range 0-75.3% had a limited impact on the dose response of the films, with a 4% change in this range. The uncertainty (2σ) on dose measurements using the scanner was 4.46%, demonstrating the effectiveness of this film dosimeter for radiation monitoring up to 296.1 kGy.

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“…Ionizing radiation is commonly used in many industrial applications such as food preservation, blood irradiation, medical devices sterilization and others. Indicators and dyes are sensitive towards radiation inducing change in their colors after irradiation; they have been used commercially in the area of medicines, radiation sterilization and food irradiation, water and other mineral purification, crosslinking of polymers [1][2][3][4][5]. Such applications require dosimeters with high accuracy to quantify the absorbed doses and indicators to detect visually the radiation exposure.…”

Section: Introductionmentioning

confidence: 99%

Possible Using of Acid Sensitive Dyes Embedded in Poly(vinyl alcohol) in Determination the Irradiation Doses

et al. 2021

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Study a new film prepared via casting a mixture of aqueous solutions consists of Orange IV and Indigo Carmine dyes embedded poly (vinyl alcohol) for dose monitoring. The prepared film may be beneficial in low and moderate dose monitor range from 0 to 60 kGy. The film undergoes an obvious color change from green to red color on exposure to gamma photons nominated it to be used as label dosimeter. The range of response curve in the target film depends on the concentration of the added chloral hydrate. The film shows good stability pre and after irradiation. There is no effect of humidity in the range of (10-70 % RH). The overall combined uncertainty measured is 6.32%.

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Dose determination with nitro blue tetrazolium containing radiochromic dye films by measuring absorbed and reflected light

Cited by 28 publications

References 6 publications

Radiation Induced Decoloration of Reactive Dye in PVA Films for Film Dosimetry

Radiation Induced Decoloration of Reactive Dye in PVA Films for Film Dosimetry

1,10-Bis(diphenylamino)-4,6-decadiyne as an active component of a radiochromic film dosimeter

Possible Using of Acid Sensitive Dyes Embedded in Poly(vinyl alcohol) in Determination the Irradiation Doses

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