Study of gamma ray energy absorption and exposure buildup factors for ferrites by geometric progression fitting method

Raut, Siddheshwar D.; Awasarmol, Vishal V.; Shaikh, Shoyebmohamad F.; Ghule, Balaji G.; Ekar, Satish; Mane, Rajaram S.; Pawar, Pravina P.

doi:10.1080/10420150.2018.1439492

Cited by 14 publications

(7 citation statements)

References 18 publications

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“…MeV up to 40 mfp [39]. The obtained Zeq values were used to determine geometric progression (GP) fitting coefficients (a, b, c, d, and Xk) for the drug samples using the following relation [33,39,41];…”

Section: Computation Of Eabf and Ebfmentioning

confidence: 99%

“…In the last step, the computed GP fitting coefficients were used to generate the energy absorption and exposure build-up for selected antineoplastic drugs at some standard photon energies in the energy range 0.015-15 MeV up to 40 mfp penetration depths. This calculation was accomplished by using the following GP fitting formulas [7,33,39,41];…”

Section: Computation Of Eabf and Ebfmentioning

confidence: 99%

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Evaluation of radiation attenuation properties of some cancer drugs

Çağlar¹,

Cengiz²

2021

Adıyaman University Journal of Science

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The present study was conducted to estimate the radiation attenuation parameters of six different antineoplastic drugs used in the cure of cancer diseases. The effective atomic number and electron density of anastrozole, epirubicin, gemcitabine, ifosfamide, methotrexate and paclitaxel were computed theoretically in the energy region of 1 keV to 100 GeV. The energy absorption buildup factors (EABF) and exposure buildup factors (EBF) for these chemotherapy drugs were also examined by applying Geometric Progression (GP) fitting method. The variation of EABF and EBF values with photon energy and penetration depth were presented graphically and discussed. The results obtained from this study pointed out that buildup factors rely on the chemical combination of the drugs, incident photon energy and penetration thickness. It was observed that ifosfamide had a significantly better radiation absorption effect compared to other drugs. The data obtained from this study are expected to be useful in the fields of radiation biology, radiation dosimetry and radiotherapy.

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Section: Computation Of Eabf and Ebfmentioning

confidence: 99%

Section: Computation Of Eabf and Ebfmentioning

confidence: 99%

Evaluation of radiation attenuation properties of some cancer drugs

Çağlar¹,

Cengiz²

2021

Adıyaman University Journal of Science

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“…To compute EABF and EBF of obsidian glasses under the study, firstly equivalent atomic number (Zeq) for specimens were calculated in the energy range 0.015-15 MeV using the ratio of Compton partial mass attenuation coefficient to total mass attenuation coefficient (R; (μm)Compton / (μm)Total) according to the following formula [13,[27][28][29];…”

Section: Calculationsmentioning

confidence: 99%

“…The values of (μm)Compton and (μm)Total at the selected energies were obtained using WinXCOM program for the elements Z = 4-30 and both obsidian specimens. Then, G-P fitting coefficients (a, b, c, d, and Xk) for the specimens were generated by applying a similar interpolation method as given by the equation 12 [8,28,29];…”

Section: Calculationsmentioning

confidence: 99%

Gamma Radiation Shielding Properties of Natural Glass Obsidian

Cengiz

Çağlar

Bílír

2020

Eskişehir Technical University Journal of Science and Technology a - Applied Sciences and Engineering

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The present study was carried out to estimate gamma radiation shielding properties of natural glass obsidian. For this purpose, linear attenuation coefficient, mass attenuation coefficient, mean free path, half-value layer, tenth-value layer, effective atomic number and effective electron number values of obsidian samples in black and brown colors were experimentally measured for 661.66, 1172.23 and 1332.48 keV gamma ray energies obtained from 137 Cs, and 60 Co radioactive sources. Measurements were performed at narrow-beam transmission geometry using a NaI(Tl) scintillation detector. In addition, all these parameters were theoretically calculated by using WinXCOM program in the energy region of 0.015 to 15 MeV. A good agreement was observed between theoretical and experimental values. Furthermore, energy absorption and exposure buildup factors (EABF and EBF) of obsidian specimens were determined in the energy range of 0.015 to 15 MeV using G-P fitting method. Finally, it can be concluded that these naturally occurring volcanic glasses can be used for radiation shielding applications.

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“… 25 S. D. Raut et al have investigated the gamma ray energy absorption and exposure buildup aspects of Co/Zn/Ni/Mg spinel ferrites utilizing G-P fitting method in the energy range of 0.015–15.00 MeV up to the penetration depth of 40 mfp. 26 …”

Section: Introductionmentioning

confidence: 99%