Response of radiochromic dye films to low energy heavy charged particles

Buenfil, A. E.; Ruiz‐Trejo, C.; Gamboa‐deBuen, I.; Avilés, Pablo; Ávila, O.; Olvera, Clarita; Robledo, R. Vázquez; Rodriguez-Ponce, M.; Mercado-Uribe, Hilda; Rodríguez‐Villafuerte, M.; Brandan, M.E.

doi:10.1016/s0168-583x(02)01488-x

Cited by 14 publications

(10 citation statements)

References 10 publications

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“…From the stock solution, different concentrations of the dye such as C 1 =0.019/L, C 2 =0.029g/L and C 3 =0.039g/L were prepared at different pH values. In dosimetric studies, those dye dosimeters are considered to be satisfactory which show a linear relationship between the concentrations (C) of the dye in the solutions and absorbance (A) measured at the primary absorption peak maxima that is actually verification of Beer's Law [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. For irradiation, the dye solutions were placed in 5 ml glass ampoules having internal diameter 1.03 cm and thickness 0.18 cm with fit in ground stoppers.…”

Section: Methodsmentioning

confidence: 99%

“…The present study dealt to find a new dye dosimeter of its type. Radiation doses are generally measurable with linear response, over absorbed dose ranges between 1 and 10 4 Gy, depending on the initial dye concentration, the pH and the presence of additives as alcohols, buffers and inorganic salts [1][2][3][4][5][6][7][8][9][10][11][12][13][14]. This dye is relatively a cheap dye.…”

Section: Introductionmentioning

confidence: 99%

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Dosimetry Characterization of Unknown Dye Polyvinyl Alcohol Films

Shahid¹,

Kousar²,

Akhtar

et al. 2021

J. Basic Appl. Sci.

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In the present study chemical dosimeters having aqueous solutions of crystal violet commercial dye were irradiated by Co60 γ source in the range (0-120)KGy. The standard aqueous solutions were scanned by UV/VIS spectrophotometer for the determination of maximum wave length (λmax) which was found to be 591nm at this value maximum absorbance was found to be 3.5; it was also observed that with increase in dose, absorbance decreases correspondingly. At this value, the absorbance (A) of irradiated samples was measured in UV region. The plot between concentration C and A gave approximate linear relationship and hence verified Beer’s Law which proved that these dye solutions can satisfactorily be used as the dye dosimeters in 0-120kGy gamma dose range.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dosimetry Characterization of Unknown Dye Polyvinyl Alcohol Films

Shahid¹,

Kousar²,

Akhtar

et al. 2021

J. Basic Appl. Sci.

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“…Gafchromic film has been explored as a possible dose monitor as well, but has been shown to be too sensitive to proton energy to use as a quantitative device. [7] …”

Section: B Achieving and Determining Beam Uniformitymentioning

confidence: 99%

Standard Practice for Dosimetry of Proton Beams for use in Radiation Effects Testing of Electronics

McMahan

Blackmore²,

Cascio³

et al. 2008

2008 IEEE Radiation Effects Data Workshop

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“…The use of commercially available document scanners instead of the expensive laser densitometers makes it possible to measure and obtain each component output at three wavelengths red, green, and blue of the RGB image. [14][15][16][17] To our knowledge, no publication has so far been reported using the combination of RGB outputs from a scanner to improve sensitivity.…”

Section: Introductionmentioning

confidence: 99%

High sensitivity radiochromic film dosimetry using an optical common‐mode rejection and a reflective‐mode flatbed color scanner

Ohuchi

2007

Medical Physics

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A novel method that can greatly improve the dosimetric sensitivity limit of a radiochromic film (RCF) through use of a set of color components, e.g., red and green, outputs from a RGB color scanner has been developed. RCFs are known to have microscopic and macroscopic nonuniformities, which come from the thickness variations in the film's active radiochromic layer and coating. These variations in the response make the optical signal-to-noise ratio lower, resulting in lower film sensitivity. To mitigate the effects of RCF nonuniform response, an optical common-mode rejection (CMR) was developed. The CMR compensates nonuniform response by creating a ratio of the two signals where the factors common to both numerator and denominator cancel out. The CMR scheme was applied to the mathematical operation of creating a ratio using two components, red and green outputs from a scanner. The two light component lights are neighboring wavebands about 100 nm apart and suffer a common fate, with the exception of wavelength-dependent events, having passed together along common attenuation paths. Two types of dose-response curves as a function of delivered dose ranging from 3.7 mGy to 8.1 Gy for 100 kV x-ray beams were obtained with the optical CMR scheme and the conventional analysis method using red component, respectively. In the range of 3.7 mGy to 81 mGy, the optical densities obtained with the optical CMR showed a good consistency among eight measured samples and an improved consistency with a linear fit within 1 standard deviation of each measured optical densities, while those with the conventional analysis exhibited a large discrepancy among eight samples and did not show a consistency with a linear fit.

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Response of radiochromic dye films to low energy heavy charged particles

Cited by 14 publications

References 10 publications

Dosimetry Characterization of Unknown Dye Polyvinyl Alcohol Films

Dosimetry Characterization of Unknown Dye Polyvinyl Alcohol Films

Standard Practice for Dosimetry of Proton Beams for use in Radiation Effects Testing of Electronics

High sensitivity radiochromic film dosimetry using an optical common‐mode rejection and a reflective‐mode flatbed color scanner

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