A new dyed poly (vinyl alcohol) film for high-dose applications

Ebraheem, S.; Eid, S.; Kovács, A.

doi:10.1016/s0969-806x(01)00663-6

Cited by 22 publications

(15 citation statements)

References 5 publications

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“…The maximum absorbance at wavelength 575 nm was chosen, and it is indicated that the dosimetric properties for the visual red orange color of the cresol red-dyed PHEMAG [8,16]. The pH value for pre-irradiation of cresol reddyed PHEMAG was around 8.330.15 as the basic visual color of red-orange before it is changed into orange after irradiation.…”

Section: Evaluation Of Dose Sensitivity Response Via Optical Charactementioning

confidence: 99%

Evaluation of Dose Sensitivity Response via Optical Characteristics for Cresol Red-Dyed Polyhydroxyethylmethacrylate Gel (Phemag)

2018

MJAS

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A new polymer gel blended with the acid base indicator of cresol red were prepared consisted of 4%, 5% and 6% of monomer (2-Hydroxyethyl Methacrylate; HEMA) in order to characterize the radiation induced changes known as cresol red Polyhydroxyethylmethacrylate Gel (PHEMAG). Cresol red-dyed PHEMAG were prepared consisted of gelatin, deionized water, HEMA, cresol red sodium salt stock solution and ascorbic acid. The polymerization Cresol red-PHEMAG was studied with 6 MV photon beam rates 300 Gy/min which received doses up to 40 Gy for the reveletion sensitivity as a function of absorbed dose based on the physical properties by using UV-Vis spectroscopy. It is indicated that 4% of HEMA exhibited a greater sensitivity of the polymer gel dosimeter based on a mathematical model of the fitting equation of the dose response curve. The value of D o (sensitivity parameter) for 4% of HEMA is the lowest about 42.373 Gy. The lower value of D o would cause the higher radiosensitive of the matter which was actively reacted at the time of exposure.Keywords: absorbed dose, cresol red, photon beam, polymer gel Abstrak Gel polimer baru dicampur dengan penunjuk asas asid kresol merah telah disediakan yang terdiri daripada 4%, 5% dan 6% daripada monomer (2-hidrosietilmetakrilik; HEMA) untuk mencirikan radiasi mendorong perubahan yang dikenali sebagai Kresol merah-dicelup Polihidrosietilmetakrilik Gel (PHEMAG). Kresol merah -dicelup PHEMAG telah dihasilkan terdiri daripada gelatin, air nyah ion, HEMA, stok larutan kresol merah natrium garam dan asid askobik. Pempolimeran kresol merah PHEMAG telah dikaji dengan pancaran foton 6 MV pada kadar yang berterusan 300 Gy/min yang menerima dos sehingga 40 Gy untuk mendedahkan kepekaan sebagai fungsi dos terserap berdasarkan sifat-sifat fizikal dengan menggunakan spektroskopi UV-Vis. Ia menunjukkan bahawa 4% daripada HEMA menghasilkan kepekaan polimer gel dosimeter yang lebih tinggi berdasarkan model persamaan matematik sesuai tindak balas dos keluk. Nilai D o (parameter sensitiviti) untuk 4% daripada HEMA adalah yang paling rendah kira-kira 42.37 Gy. Nilai yang lebih rendah daripada D o akan menyebabkan radiosensitif jisim yang bertindak balas secara aktif pada masa pendedahan.Kata kunci: dos terserap, kresol merah, pancaran foton, gel polimer ISSN -2506Nur Sha'adah et al: EVALUATION OF DOSE SENSITIVITY RESPONSE VIA OPTICAL CHARACTERISTICS FOR CRESOL RED-DYED POLYHYDROXYETHYLMETHACRYLATE GEL (PHEMAG) 304Introduction Dosimeter is a device that would able to measure quantitatively such as absorbed dose, equivalent dose or other related radiation quantities. This variation of dosimeter is mostly required to exhibit an ideal dosimeter based on the energy deposited in term of absorbed dose for the detection limit from exceeding the dose required during the treatment either from radiology or industry modalities. Polymer gel dosimeter promises a great response of the absorbed dose in three dimensions that able to overcome the limitation of the common dosimeter such as absolute dosimeter and ...

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Section: Evaluation Of Dose Sensitivity Response Via Optical Charactementioning

confidence: 99%

Evaluation of Dose Sensitivity Response via Optical Characteristics for Cresol Red-Dyed Polyhydroxyethylmethacrylate Gel (Phemag)

2018

MJAS

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“…al., 2013); bromophenol merah (BPR), brilliant yellow (BY) (El-Kelany M. dan Ebraheem S., 2011); ethyl violet dan bromophenol biru (BPB) (Ebraheem S. dan ElKelany M., 2013); cresol merah (CR) (S. Ebraheem et. al., 2002); tetrazolium violet (Emi R. G. dkk, 2007); dan methyl viologen (Lavallea M. et.…”

Section: Pendahuluanmentioning

confidence: 99%

Sintesis Dan Karakterisasi Sifat Optik Polimer Film PVA-TCA-MB

‘Ardhuha¹,

Verawati²,

Taufik³

et al. 2017

J. Pendidik. Fis. Teknol.

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“…10 Mixed dye film containing 2,6-dichlorophenol indophenol sodium salt and Cresol Red was investigated to be useful dosimeter in dose range up to 17 kGy and another dose range up to 50 kGy. 11 The main goal of the present work is the investigation of mixed dye film of two dyes chlorophenol red (CPR) and Quinaldine Red (QR) to be a dosimeter for sterilization, also it describes the influence of humidity during irradiation as well as stability before and after irradiation on the film response.…”

Section: Introductionmentioning

confidence: 99%

Effect of Gamma Radiation on a Mixed Dye Film and Its Possible Use as a Radiation Dosimeter

Eid¹,

Rabie²,

Ebraheem³

et al. 2017

ECB

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Dyed poly(vinyl alcohol) (PVA) films prepared by a simple technique of casting aqueous PVA solution incorporating a mixture of two dyes namely chlorophenol red (CPR) and Quinaldine Red (QR) on a horizontal glass plate are useful as high dose dosimeter in the dose range 2-30 kGy range. The colour of these films change from deep red to yellow when exposed to gamma radiation. Chloral hydrate was added with different concentrations. The response of the prepared films can be modified either by change of chloral hydrate concentration or ratio of the two dyes. As a result, these films can be used as a dosimeter in two dose ranges. The dosimetric parameters, e.g.; dose response, effect of relative humidity on response as well as pre-and post-irradiation stability of these films have been investigated.

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A new dyed poly (vinyl alcohol) film for high-dose applications

Cited by 22 publications

References 5 publications

Evaluation of Dose Sensitivity Response via Optical Characteristics for Cresol Red-Dyed Polyhydroxyethylmethacrylate Gel (Phemag)

Evaluation of Dose Sensitivity Response via Optical Characteristics for Cresol Red-Dyed Polyhydroxyethylmethacrylate Gel (Phemag)

Sintesis Dan Karakterisasi Sifat Optik Polimer Film PVA-TCA-MB

Effect of Gamma Radiation on a Mixed Dye Film and Its Possible Use as a Radiation Dosimeter

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