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| 003 | EG-GiCUC | ||
| 005 | 20250223032854.0 | ||
| 008 | 211129s2021 ua dh f m 000 0 eng d | ||
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_aEG-GiCUC _beng _cEG-GiCUC |
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| 041 | 0 | _aeng | |
| 049 | _aDeposite | ||
| 097 | _aPh.D | ||
| 099 | _aCai01.12.11.Ph.D.2021.So.P | ||
| 100 | 0 | _aSoad Magdy Tadros Michael | |
| 245 | 1 | 0 |
_aPhysico-chemical studies on some new dosimeters for possible use in radiation processing dosimetry / _cSoad Magdy Tadros Michael ; Supervised Magdi Mikhail Naoum , Gamal Riad Saad , Wafaa Bader Eldin Mostafa |
| 246 | 1 | 5 | _aدرا{uئإآ٣}{uئإ٨إ}ت {uئإؤ٣}{uئآئئ}{uئإآ٠}{uئآئإ}{uئإإإ}{uئإؤآ}{uئآئئ}{uئإإ٤}{uئآئئ}{uئإ٨إ}{uئإ٨آ}{uئآئئ}{uئإ٩٤} {uئإؤئ}{uئإإ٤}{uئإؤ٨}{uئإ٨إ}{uئآئإ}{uئآئئ}{uئإآ٢} {uئإ٩ئ}{uئإءء}{uئآئإ}{uئإءء}ة وا{uئإإ٣}{uئإؤأ}{uئإ٨إ}{uئإإ٧}{uئآئئ}{uئإ٩٤} ا{uئإآ٣}{uئإ٩٨}{uئإء٨}{uئإءء}ا{uئإإ٣}{uئآءؤ}{uئإ٨إ} {uئإؤ٣}{uئإئ٠} {uئإؤ٧}{uئآئئ}{uئإ٨إ}س ا{uئإؤئ}{uئإء٠}{uئإءإ}{uئإأآ}{uئإ٨إ}ت ا{uئإئآ}{uئإآ٧}{uئإأأ}{uئإ٨إ}{uئإأآ}{uئآئئ}{uئإ٩٤} |
| 260 |
_aCairo : _bSoad Magdy Tadros Michael , _c2021 |
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| 300 |
_a180 P. : _bcharts , facsimiles ; _c25cm |
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| 502 | _aThesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physical Chemistry | ||
| 520 | _aThe first part of this thesis aims to develop and optimize the formulation of a radiation-sensitive material of silver nitrate in gelatin, a capping agent, to prepare radiochromic gel dosimeters suitable for dosimetry applications up to 100 Gy. Gamma radiation-induced Ag nanoparticles (NPs) formation in silver nitrate gel dosimeter at different silver nitrate concentration, gelatin %, isopropanol % and pH was investigated. The absorption spectrum of the Þ-irradiated gel dosimeter exhibited a Surface Plasmon Resonance band (SPR) at a wavelength of 450 nm nm indicating AgNPs formation upon Þ-irradiation.The intensity of this peak grows linearly with increasing absorbed doses up to 100 Gy. The sensitivity of radiation increases with the increase of Ag⁺ ion concentrations and the decrease of gelatin content. In addition, using isopropanol enhanced the development of AgNPs in the gel dosimeter. The increase of isopropanol in the gel (100 mM The first part of this thesis aims to develop and optimize the formulation of a radiation-sensitive material of silver nitrate in gelatin, a capping agent, to prepare radiochromic gel dosimeters suitable for dosimetry applications up to 100 Gy. Gamma radiation-induced Ag nanoparticles (NPs) formation in silver nitrate gel dosimeter at different silver nitrate concentration, gelatin %, isopropanol % and pH was investigated. The absorption spectrum of the Þ-irradiated gel dosimeter exhibited a Surface Plasmon Resonance band (SPR) at a wavelength of 450 nm nm indicating AgNPs formation upon Þ-irradiation. The intensity of this peak grows linearly with increasing absorbed doses up to 100 Gy. The sensitivity of radiation increases with the increase of Ag+ ion concentrations and the decrease of gelatin content. In addition, using isopropanol enhanced the development of AgNPs in the gel dosimeter. The increase of isopropanol in the gel (100 mM Ag+) from 0 to 20% enhanced the radiation sensitivity by 16.75% | ||
| 530 | _aIssued also as CD | ||
| 653 | 4 | _aAg nanoparticles | |
| 653 | 4 | _aDosimetry | |
| 653 | 4 | _aRadiochromic gel | |
| 700 | 0 |
_aGamal Riad Saad , _eSupervisor |
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| 700 | 0 |
_aMagdi Mikhail Naoum , _eSupervisor |
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| 700 | 0 |
_aWafaa Bader Eldin Mostafa , _eSupervisor |
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| 856 | _uhttp://172.23.153.220/th.pdf | ||
| 905 |
_aNazla _eRevisor |
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| 905 |
_aShimaa _eCataloger |
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| 942 |
_2ddc _cTH |
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| 999 |
_c83367 _d83367 |
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