Performance evaluation of Gallium-68 radiopharmaceuticals production using liquid target PETtrace 800 cyclotron
Appl Radiat Isot. 2023 Dec 27;205:111161. doi: 10.1016/j.apradiso.2023.111161. Online ahead of print.ABSTRACTDue to increased demand, cyclotron has an expanding role in producing Gallium-68 (68Ga) radiopharmaceuticals using solid and liquid targets. Though the liquid target produces lower end-of-bombardment activity compared to the solid target, our study presents the performance of 68Ga radiopharmaceuticals production using the liquid target by evaluating the end-of-bombardment activity and the end-of-purification activity of [68Ga]GaCl3. We also present the effect of increasing irradiation time, which significantly impro...
Source: Applied Radiation and Isotopes - January 1, 2024 Category: Radiology Authors: Zarif Ashhar Muhammad Fakhrurazi Ahmad Fadzil Zaitulhusna Md Safee Firdaus Aziz Ummi Habibah Ibarhim Nik Muhammad Fitri Nik Afinde Noratikah Mat Ail Muhammad Ali Hazizi Jamal Harizan Dzulieza Halib Arieffuddin Alek Amran Rabiatul Adawiyah Mohd Hamdi Noor Source Type: research
Performance evaluation of Gallium-68 radiopharmaceuticals production using liquid target PETtrace 800 cyclotron
Appl Radiat Isot. 2023 Dec 27;205:111161. doi: 10.1016/j.apradiso.2023.111161. Online ahead of print.ABSTRACTDue to increased demand, cyclotron has an expanding role in producing Gallium-68 (68Ga) radiopharmaceuticals using solid and liquid targets. Though the liquid target produces lower end-of-bombardment activity compared to the solid target, our study presents the performance of 68Ga radiopharmaceuticals production using the liquid target by evaluating the end-of-bombardment activity and the end-of-purification activity of [68Ga]GaCl3. We also present the effect of increasing irradiation time, which significantly impro...
Source: Applied Radiation and Isotopes - January 1, 2024 Category: Radiology Authors: Zarif Ashhar Muhammad Fakhrurazi Ahmad Fadzil Zaitulhusna Md Safee Firdaus Aziz Ummi Habibah Ibarhim Nik Muhammad Fitri Nik Afinde Noratikah Mat Ail Muhammad Ali Hazizi Jamal Harizan Dzulieza Halib Arieffuddin Alek Amran Rabiatul Adawiyah Mohd Hamdi Noor Source Type: research
Performance evaluation of Gallium-68 radiopharmaceuticals production using liquid target PETtrace 800 cyclotron
Appl Radiat Isot. 2023 Dec 27;205:111161. doi: 10.1016/j.apradiso.2023.111161. Online ahead of print.ABSTRACTDue to increased demand, cyclotron has an expanding role in producing Gallium-68 (68Ga) radiopharmaceuticals using solid and liquid targets. Though the liquid target produces lower end-of-bombardment activity compared to the solid target, our study presents the performance of 68Ga radiopharmaceuticals production using the liquid target by evaluating the end-of-bombardment activity and the end-of-purification activity of [68Ga]GaCl3. We also present the effect of increasing irradiation time, which significantly impro...
Source: Applied Radiation and Isotopes - January 1, 2024 Category: Radiology Authors: Zarif Ashhar Muhammad Fakhrurazi Ahmad Fadzil Zaitulhusna Md Safee Firdaus Aziz Ummi Habibah Ibarhim Nik Muhammad Fitri Nik Afinde Noratikah Mat Ail Muhammad Ali Hazizi Jamal Harizan Dzulieza Halib Arieffuddin Alek Amran Rabiatul Adawiyah Mohd Hamdi Noor Source Type: research
Radioactivity levels, soil-to-grass and grass-to-milk transfer factor of natural radionuclides from grazing area in Erbil governorate, Iraq
Appl Radiat Isot. 2023 Dec 28;205:111170. doi: 10.1016/j.apradiso.2023.111170. Online ahead of print.ABSTRACTThe levels of naturally occurring radionuclides in soil, grass, and milk were measured in this study in order to calculate the transfer factor of radionuclides from soil to grass and grass to milk obtained from Erbil governorate in Iraq. High efficiency gamma spectrometry used for the measurement. It has been determined that the mean activity concentrations of 232Th, 226Ra, and 40K are 3.08, 8.37, and 253 BqKg-1 in soil, 0.5, 0.39, and 203.05 BqKg-1, in grass, and 0.29, 0.084, and 29.69 BqL-1, in milk, respectively....
Source: Applied Radiation and Isotopes - December 31, 2023 Category: Radiology Authors: Ahmed I Samad Ali H Ahmed Saadon T Ahmad Source Type: research
Simulation of radon detection efficiency with small pulse ionization chamber based on Geant4
Appl Radiat Isot. 2023 Dec 20;205:111152. doi: 10.1016/j.apradiso.2023.111152. Online ahead of print.ABSTRACTRadon measurement is crucial in assessing the damage to the human body caused by natural radiation. Pulsed ionization chambers are effective for real-time radon measurement and have widespread applications in other radiation techniques. However, due to practical constraints such as limited space and portability concerns, it becomes imperative to consider not only the detection efficiency but also their ease of transportation. This work utilizes the Geant4 Monte Carlo simulation toolkit to characterize the detection ...
Source: Applied Radiation and Isotopes - December 31, 2023 Category: Radiology Authors: Rui Gou Rui Shi Qian Zhang Xiang-Long Dong Source Type: research
Radon activity concentration RnCA and workers lung cancer risks in SENA coal mines, Colombia
This article report health risk for underground workers exposed to radioactive gas and radon daughters carried by airborne dust at the coal mining in the Central Mountainous Region of Colombia. A set of 33 measurement points located in that mine galleries were selected to monitor radon gas concentration activity, by passive LR-115 detectors, during two months. Resulting values provided radon concentrations, absorbed dose, environmental equivalent dose and the effective dose; miners increased risk of contracting lung cancer is included. It is concluded that the mine ventilation system satisfies the conditions required by th...
Source: Applied Radiation and Isotopes - December 30, 2023 Category: Radiology Authors: A T Monta ñez-Reyes L Sajo-Bohus S A Martinez-Ovalle Source Type: research
Effects on the accelerating electron bunches due to the presence of sulfur hexafluoride or air in the linac waveguide
Appl Radiat Isot. 2023 Dec 26;205:111155. doi: 10.1016/j.apradiso.2023.111155. Online ahead of print.ABSTRACTSulfur hexafluoride gas (SF6) is used as a dielectric insulator in the acceleration process of certain medical linear accelerator waveguides. Nevertheless, some innovative development and investigation cases require intervention in the linear accelerator or, specifically, on the waveguide, which could affect the sealing of the device. In this regard, vacuum sealing systems can be compromised, affecting the properties of the radiation beams produced. The presence of sulfur hexafluoride or air inside the VARIAN 6/100 ...
Source: Applied Radiation and Isotopes - December 30, 2023 Category: Radiology Authors: A Gayol R Figueroa J Guarda J Leiva F Leyton F Malano M Valente Source Type: research
A comparative study of a traditional localization algorithm and a deep learning model for radioactive particle tracking application
This study proposes a simplified model of a concrete mixer, six NaI(Tl) detectors, and a137Cs sealed radioactive particle. The simulated measurement geometry and the dataset (3615 patterns) were developed using the MCNPX code, which is a mathematical code based on the Monte Carlo Method. The results show a mean absolute percentage error (MAPE) of 20.81%, 10.33%, and 16.84% for x, y and z coordinates, respectively, for the traditional algorithm. For the deep neural network, MAPE is 6.87%, 2.70%, and 22.79% respectively for x, y and z coordinates. In addition, an investigation is carried out to analyze whether the size of th...
Source: Applied Radiation and Isotopes - December 29, 2023 Category: Radiology Authors: Roos Sophia de Freitas Dam Renato Raoni Werneck Affonso William Luna Salgado Roberto Schirru C ésar Marques Salgado Source Type: research
Europium-doped strontium gadolinium oxide phosphor: Investigating structural and photoluminescence characteristics via sol-gel combustion synthesis
Appl Radiat Isot. 2023 Dec 27;205:111169. doi: 10.1016/j.apradiso.2023.111169. Online ahead of print.ABSTRACTSrGd2O4 phosphors doped with Eu3+ were successfully synthesized through a sol-gel combustion method, covering a range of dopant concentrations from 0.25 mol% to 3 mol%. The structural analysis of these phosphor materials was comprehensively conducted utilizing various techniques, including X-ray powder diffraction analysis (XRD), Energy Dispersive X-ray (EDX), and Fourier-transform infrared spectroscopy (FTIR). In addition to unveiling the structural characteristics, these analyses provide valuable insights into the...
Source: Applied Radiation and Isotopes - December 29, 2023 Category: Radiology Authors: S Sarikci M Topaksu E Ozturk G Souadi O Madkhali A Y Madkhli N Can Source Type: research
Editorial
Appl Radiat Isot. 2023 Dec 22:111153. doi: 10.1016/j.apradiso.2023.111153. Online ahead of print.NO ABSTRACTPMID:38158262 | DOI:10.1016/j.apradiso.2023.111153 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - December 29, 2023 Category: Radiology Authors: Hector Rene Vega-Carrillo Juan Azorin Source Type: research
Short life fission products extracted from molten salt reactor fuel for radiopharmaceutical applications
Appl Radiat Isot. 2023 Dec 13;205:111146. doi: 10.1016/j.apradiso.2023.111146. Online ahead of print.ABSTRACTThis work studies the potential of using short life fission product (AFp) radioisotopes e.g. 82Br, 86Rb, (90Sr) - 90mY, (99Mo) - 99mTc, 103Ru - 103mRh, 111Ag, 127Sb - 127(m)Te, 126I, 131I, 133Xe, 136Cs, 141Ce, 143Ce, 143Pr, 147Nd - 147Pm, 149Pm, 153Sm, 156Eu, 159Gd and 161Tb, extracted from a molten salt reactor and their separation using specific thermodynamic and radiochemical conditions. Their utilisation for coupled radiodiagnostics and radiotherapy is a key consideration. A molten salt reactor produces fission ...
Source: Applied Radiation and Isotopes - December 28, 2023 Category: Radiology Authors: Claude Degueldre Joshua Findlay David Cheneler Suneela Sardar Sarah Green Source Type: research
Short life fission products extracted from molten salt reactor fuel for radiopharmaceutical applications
Appl Radiat Isot. 2023 Dec 13;205:111146. doi: 10.1016/j.apradiso.2023.111146. Online ahead of print.ABSTRACTThis work studies the potential of using short life fission product (AFp) radioisotopes e.g. 82Br, 86Rb, (90Sr) - 90mY, (99Mo) - 99mTc, 103Ru - 103mRh, 111Ag, 127Sb - 127(m)Te, 126I, 131I, 133Xe, 136Cs, 141Ce, 143Ce, 143Pr, 147Nd - 147Pm, 149Pm, 153Sm, 156Eu, 159Gd and 161Tb, extracted from a molten salt reactor and their separation using specific thermodynamic and radiochemical conditions. Their utilisation for coupled radiodiagnostics and radiotherapy is a key consideration. A molten salt reactor produces fission ...
Source: Applied Radiation and Isotopes - December 28, 2023 Category: Radiology Authors: Claude Degueldre Joshua Findlay David Cheneler Suneela Sardar Sarah Green Source Type: research
Short life fission products extracted from molten salt reactor fuel for radiopharmaceutical applications
Appl Radiat Isot. 2023 Dec 13;205:111146. doi: 10.1016/j.apradiso.2023.111146. Online ahead of print.ABSTRACTThis work studies the potential of using short life fission product (AFp) radioisotopes e.g. 82Br, 86Rb, (90Sr) - 90mY, (99Mo) - 99mTc, 103Ru - 103mRh, 111Ag, 127Sb - 127(m)Te, 126I, 131I, 133Xe, 136Cs, 141Ce, 143Ce, 143Pr, 147Nd - 147Pm, 149Pm, 153Sm, 156Eu, 159Gd and 161Tb, extracted from a molten salt reactor and their separation using specific thermodynamic and radiochemical conditions. Their utilisation for coupled radiodiagnostics and radiotherapy is a key consideration. A molten salt reactor produces fission ...
Source: Applied Radiation and Isotopes - December 28, 2023 Category: Radiology Authors: Claude Degueldre Joshua Findlay David Cheneler Suneela Sardar Sarah Green Source Type: research
Short life fission products extracted from molten salt reactor fuel for radiopharmaceutical applications
Appl Radiat Isot. 2023 Dec 13;205:111146. doi: 10.1016/j.apradiso.2023.111146. Online ahead of print.ABSTRACTThis work studies the potential of using short life fission product (AFp) radioisotopes e.g. 82Br, 86Rb, (90Sr) - 90mY, (99Mo) - 99mTc, 103Ru - 103mRh, 111Ag, 127Sb - 127(m)Te, 126I, 131I, 133Xe, 136Cs, 141Ce, 143Ce, 143Pr, 147Nd - 147Pm, 149Pm, 153Sm, 156Eu, 159Gd and 161Tb, extracted from a molten salt reactor and their separation using specific thermodynamic and radiochemical conditions. Their utilisation for coupled radiodiagnostics and radiotherapy is a key consideration. A molten salt reactor produces fission ...
Source: Applied Radiation and Isotopes - December 28, 2023 Category: Radiology Authors: Claude Degueldre Joshua Findlay David Cheneler Suneela Sardar Sarah Green Source Type: research
On density measurement using various radiation sources: Cs-137, X-ray and pulsed neutron
This study, based on the real gamma density tool structure, optimizes the design of the X-ray and pulsed neutron-gamma density tools, providing a reference for the optimization of source-less density tools. Firstly, the study gives a comparison of density measurement using three sources through a combination of theory and simulation results. And the performance of the tools is evaluated using indicators such as detection efficiency, formation density sensitivity, and depth of investigation. Finally, based on the characteristics of different sources, the aforementioned indicators are balanced to obtain the optimal value of ...
Source: Applied Radiation and Isotopes - December 27, 2023 Category: Radiology Authors: Jiaqi Xiangyang Yi Ge Qiong Zhang Source Type: research
