Optimizing the size of cylindrical sucrose solid state/EPR dosimeters for ionizing radiation

Karakirova, Yordanka; Yordanova, Velislava

doi:10.1016/j.radphyschem.2021.109469

Cited by 2 publications

(1 citation statement)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…During the duration of the period, numerous types of dosimeters are utilized for a variety of purposes, including dyed polymeric thin plastic film dosimeters, which have been widely applied [5][6][7][8][9][10][11]. Liquid dosimeters [12][13][14][15][16][17][18], gel dosimeters [19][20][21][22] and EPR dosimeters [23][24][25]. Upon exposure to irradiation, the physical and chemical properties of the polymers change in the case of films, accordingly due to induced cross-links, chain detachments and formation of new chemical bonds [26].…”

Section: Introductionmentioning

confidence: 99%

Variation in dose response of three dosimetry systems based on diphenyl thiocarbazone

Gafar

El‐Ahdal

El-Shawadfy

2022

J Radioanal Nucl Chem

View full text Add to dashboard Cite

Three different dosimetry systems were prepared based on diphenyl thiocarbazone (DTH) dye: polymer films made with, poly(vinyl alcohol), DTH liquid dosimeter and DTH gel dosimeter. All the systems received several gamma doses. The three systems were analyzing by UV–Vis spectrophotometery before and after irradiation. The effective dose range in the linear part of these systems is between 1–10 kGy, 0.3–2 kGy, and 50–200 Gy. The dose range of these three dosimeters relies on the concentration of DTH. The radiation chemical yield (G-value) was determined for the three prepared dosimeters, and all three radiation dosimeters were examined before and after irradiation.

show abstract

Section: Introductionmentioning

confidence: 99%

Variation in dose response of three dosimetry systems based on diphenyl thiocarbazone

Gafar

El‐Ahdal

El-Shawadfy

2022

J Radioanal Nucl Chem

View full text Add to dashboard Cite

show abstract

EPR-Study the Decay Kinetics of Free Radicals in Irradiated Sucrose

Medzhidov,

Polyakova,

Gorbatov

et al. 2023

HoBMSTU.SNS

View full text Add to dashboard Cite

Electron paramagnetic resonance (EPR) spectrometry makes it possible to study the formation of free radicals during the transfer of energy to the object. The decay kinetics of free radicals is an integral part of the study since this phenomenon directly interferes with the goals of accurate identification of the irradiation fact and dosimetry using EPR spectrometry. In this work, we have studied the time dependence of the intensity and characteristics of the EPR signal of analytical sucrose irradiated with gamma rays at doses from 0.3 to 9 kGy. It has been shown that irradiated sucrose gives a stable EPR peak after 60 days. A change in the spectral characteristics of the signal was recorded in the first 23 hours after irradiation. The signal intensity tends to increase in the first 72 hours after irradiation for a sample with an irradiation dose of 300 Gy and 48 hours for 1000 Gy. The dependence of the signal intensity on the absorbed dose is linear in the range of studied doses. The g-factor value at the intersection point of the derivative contour with the zero line is 2.013. Based on the data obtained, it can be assumed that sucrose (sugar) is one of the best candidates among solid radiation-sensitive materials for identifying the fact of irradiation using EPR spectrometry

show abstract

Optimizing the size of cylindrical sucrose solid state/EPR dosimeters for ionizing radiation

Cited by 2 publications

References 19 publications

Variation in dose response of three dosimetry systems based on diphenyl thiocarbazone

Variation in dose response of three dosimetry systems based on diphenyl thiocarbazone

EPR-Study the Decay Kinetics of Free Radicals in Irradiated Sucrose

Contact Info

Product

Resources

About