New Improved Thermoluminescence Magnesium Silicate Material for Clinical Dosimetry

Abstract

Magnesium silicate has been prepared by a precipitation technique. This composite structure was proven by different tools, XRD, TGA&DTA, FTIR, and XRF. Magnesium silicate was found to have the formulas Mg1.1SiO3.2.1.1H2O. Thermoluminescence (TL) dosimetric properties like (linearity, fading, energy independence) of magnesium silicate in the shape of MgSiO3 have been estimated. A strong TL dosimetry peak associated with gamma radiation arises from 137 Cs was developed. Different doses from gamma radiation were measured by thermoluminescence (TL) detection technique for magnesium silicate glasses in unique magnesium elements concentration to assess its dosimetric properties. A single strong peak of about 230 °C arises for all irradiated samples. Total integral values of TL output and TL of the principal peak values showing a linear behavior start with 0.5 Gray up to 2 Gray dose range. Correlation of magnesium silicate TL response and different doses showed dose-response improvement concerning low doses linear relationship.

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

“…The bands appeared at 1040 & 905 cm -1 attributed to Si-O-Si & Si-O-H deformation vibration, respectively [27]. The bands at 636 & 460 cm -1 , attributed to Si-O [19].…”

“…1). This Figure shows that broadband was noticed at 3470-3300 cm -1 due to H 2 O (stretching vibration) and OH adsorbed on {P(AN-AM)-NS} [19]. Two bands were noticed at 3190 & 2940 cm -1 due to N-H (stretching vibration) & CH 2 , respectively, [20][21][22].…”

Metal Doping Silicates as Inorganic Ion Exchange Materials for Environmental Remediation

“…This decrease may be related to the reduction of the H2O content of metals by in-situ doping. At 1625 cm -1 , a strong band attributed to a bending vibration for water molecules absorbed on composites prepared [21,22]. At 1000 cm -1 due to Ti-OH deformation vibration [23], or overlapping of the Si-O and Si-OH [20], and Ti-O bonds in the structure, the band appeared at 780 cm -1 [24].…”

“…Two bands at 567 and 480 cm -1 are assigned to Si-O-Ti and Si-O-Si (bending vibrations), respectively [24]. Bands at 416-465 cm -1 are associated with metal-O bonds (Co, Cd-O) [21].…”

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-Silica for Removal of Some Hazardous Metals

“…IR spectrum of {P(AN-AM)-NS} nanocomposite (Fig.1). This Figure shows that broadband was noticed at 3470-3300 cm -1 due to H 2 O (stretching vibration) and OH adsorbed on {P(AN-AM)-NS}[19]. Two bands were noticed at 3190 & 2940 cm -1 due to N-H (stretching vibration) & CH 2 , respectively,[20][21][22].…”