Dosimetric properties of new formulation of PRESAGE® with tin organometal catalyst: Development of sensitivity and stability to megavoltage energy

Autor:	Alireza Zirak, Eisa Alidokht, Davood Khezerloo, Nooshin Banaee, Bagher Farhood, Hassan Ali Nedaie, Abbas Takavar
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	Materials science Fabrication Inorganic chemistry chemistry.chemical_element 01 natural sciences lcsh:RC254-282 030218 nuclear medicine & medical imaging Catalysis 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine PRESAGE® Dosimetry 0103 physical sciences Tetrachloride three-dimensional dosimetry Radiology Nuclear Medicine and imaging Mass attenuation coefficient Absorption (electromagnetic radiation) Polyurethane 010308 nuclear & particles physics General Medicine lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens radiation Oncology chemistry Tin
Zdroj:	Journal of Cancer Research and Therapeutics, Vol 14, Iss 2, Pp 308-313 (2018)
ISSN:	1998-4138 0973-1482
Popis:	Aim: Tin-base catalyst is one of the widely used organometallic catalysts in polyurethane technology. The purpose of this study was to evaluate the effect of tin organometallic catalyst in the radiation response and radiological properties of a new formula of PRESAGE®. Materials and Methods: In the study, two types of PRESAGE were fabricated. A very little amount of dibutyltindillaurate (DBTDL) (0.07% weight) was used as a catalyst in the fabrication of new PRESAGE (i.e., PRESAGE with catalyst), which components were: 93.93% weight polyurethane, 5% weight tetrachloride, and 1% weight leucomalachite green (LMG). For PRESAGE without catalyst, 94% weight polyurethane, 4% weight tetrachloride, and 2% weight LMG were used. Radiochromic response and postirradiation stability of PRESAGEs were determined. Also, radiological characteristics of PRESAGEs, such as mass density, electron density, mass attenuation coefficient, and mass stopping power in different photon energies were assessed and compared with water. Results: The absorption peak of new PRESAGE compared to PRESAGE without catalyst was observed without change. Sensitivity of new PRESAGE was higher than PRESAGE without catalyst and its stability after the first 1 h was relatively constant. Also, Mass attenuation coefficient of new PRESAGE in energy ranges
Databáze:	OpenAIRE
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