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Neutron attenuation features and elastic properties of silicate glasses containing Ta 2 O 5 , and Li 2 O
Appl Radiat Isot. 2023 Jun 7;199:110896. doi: 10.1016/j.apradiso.2023.110896. Online ahead of print.ABSTRACTIn this investigation, the elastic properties and neutrons attenuation factors for some optical glasses containing Ta2O5, SiO2, and Li2O were reported. The present glasses were also consisted of ZrO2 and Nb2O5 in very small concentrations. The glasses are chemically defined as 26.47Li2O-5.88ZrO2-(20-x)Ta2O5-xNb2O5-47.06SiO2, where, x takes the values: 0, 2.94, 5.88, and 11.77 mol%. The elastic properties of these glassy specimens were determined by employing Makishima-Mackenzie's theory (M.M.T). By using the same met...
Source: Applied Radiation and Isotopes - June 13, 2023 Category: Radiology Authors: Jamila S Alzahrani Z A Alrowaili Mohammed S Alqahtani Mohamed Adam I O Olarinoye Ufuk Durmaz M S Al-Buriahi Source Type: research

Dosimetric evaluation of 123 I (Iodide) and 99m Tc (Pertechnetate) in the thyroid of neonates using Cristy-Eckerman and Segars anatomical representations
Appl Radiat Isot. 2023 May 30;199:110877. doi: 10.1016/j.apradiso.2023.110877. Online ahead of print.ABSTRACTUsing the MIRD formalism, and the Cristy-Eckeman and Segars anthropomorphic representations, the absorbed dose in the thyroid of newborns, was calculated when 123I (iodide) and 99mTc (pertechnetate) are used during the diagnostic procedures. The dose results will allow exploring the dosimetric impact generated by the use of these radiopharmaceutical compounds and the use of two representations. Regardless the radiopharmaceutical compound and the anthropomorphic representation is the thyroid self-dose is the greatest...
Source: Applied Radiation and Isotopes - June 11, 2023 Category: Radiology Authors: Marcial Vasquez-Arteaga Hector Rene Vega-Carrillo Leopoldo Acu ña-Peralta Huber Rodriguez Nomura Marcela Vasquez-Silva Hip ólito Flores Urquiaga Source Type: research

Design of intermittent continuous measurement of radon concentration in water
Appl Radiat Isot. 2023 Jun 7;199:110894. doi: 10.1016/j.apradiso.2023.110894. Online ahead of print.ABSTRACTThe U.S. Environmental Protection Agency established the maximum contaminant level limit for radon concentration in drinking water as 11.1 Bq L-1. A new device based on the bubbling method with a 290 mL sample bottle was designed for intermittent continuous measurement of water radon concentration. A STM32 is used to control the switch of the water pump and the valves. The Water-Radon-Measurement software written in C# is to connect RAD7 and calculate the water radon concentration automatically.PMID:37302298 | DOI:10...
Source: Applied Radiation and Isotopes - June 11, 2023 Category: Radiology Authors: Tao Hu Shuai Yuan Yixiang Mo Fen Lin Zhongkai Fan Shuaibin Liu Ruomei Xie Haibo Yi Huiying Li Zhipeng Liu Jiale Sun Jiulin Wu Linquan Chen Luwei Wang Hongzhi Yuan Yanliang Tan Source Type: research

Simulation of sand particles detection inside a pipeline by photon radiography
Appl Radiat Isot. 2023 May 25;199:110876. doi: 10.1016/j.apradiso.2023.110876. Online ahead of print.ABSTRACTTransmission pipelines are vital arteries in the petroleum industry, as the survival of this system depends on maintaining the capability of transferring fluid through the pipelines. In petroleum industry, transfer system faults lead to significant economic and social consequences and sometimes may produce critical situations. Transmission pipelines connect all systems, and any defect in their functions adversely affects other systems directly or indirectly. Small quantities of sand particles in transmission pipelin...
Source: Applied Radiation and Isotopes - June 11, 2023 Category: Radiology Authors: Vahid Jamshidi Source Type: research

Proof-of-concept studies of novel protocols for producing highly pure 48 V from a 48 Cr/ 48 V generator
This study suggests that, to maximize the yield and isotopic purity of 48V, the best production protocol would involve utilizing two separations with TRU resin and 10 M HNO3 to isolate 48Cr and purify the generated 48V.PMID:37302300 | DOI:10.1016/j.apradiso.2023.110855 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - June 11, 2023 Category: Radiology Authors: Scott D Essenmacher Chloe R Kleinfeldt Katharina A Domnanich Vladyslav S Bodnar Chirag K Vyas Gregory W Severin Source Type: research

Standoff alpha radiation measurement of surface contamination based on radioluminescence
We present the results of the detection efficiency calibrating of standoff alpha radioactive sources using simulation and experiment. At the same time, a numerical integration-based surface contamination measurement method is designed, computed, and validated through experiments and simulations. Finally, the minimum detectable surface activity of the method is given for different measurement conditions.PMID:37300927 | DOI:10.1016/j.apradiso.2023.110867 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - June 10, 2023 Category: Radiology Authors: Zeqian Wu Jinxing Cheng Mei Xu Bairong Wang Qingbo Wang Ai Yu Yue Zhang Weiwei Wen Youpeng Wu Source Type: research

Evaluation treatment planning system for oropharyngeal cancer patient using machine learning
Appl Radiat Isot. 2023 May 11;199:110785. doi: 10.1016/j.apradiso.2023.110785. Online ahead of print.ABSTRACTOropharyngeal cancer (OPC) comprises a group of various malignant tumours that grow in the throat, larynx, mouth, sinuses, and nose. THE RESEARCH AIMS: to investigate the performance of the OPC VMAT model by comparison to clinical plans in terms of dosimetric parameters and normal tissue complication probabilities.PURPOSE: Tune the model which at least matches the performance of clinical created photon treatment plans and analyse and find the most appropriate strategic plan scheme for OPC.METHODS AND MATERIALS: The ...
Source: Applied Radiation and Isotopes - June 10, 2023 Category: Radiology Authors: Ahmed Ghanim Glayl Karrar Hazim Salem Harith Muthanna Noori Dalael Saad Abdul-Zahra Naeem Shareef Abdalhussien Mohammed Ayad Alkhafaji Source Type: research

An efficiency function model of segmented gamma scanning for measuring radioactive waste drum
Appl Radiat Isot. 2023 Jun 5;199:110895. doi: 10.1016/j.apradiso.2023.110895. Online ahead of print.ABSTRACTSegmented gamma scanning (SGS) is a fast and effective method for measuring radioactive waste drum. The efficiency calibration is directly related to the accuracy of reconstructed radioactivity. An efficiency function model and SGS efficiency calibration method are proposed for solving existing SGS efficiency calibration problems such as time lag, limited by experimental sources or difficult to effectively combine with SGS system. The SGS system model is established by the Geant4 to calculate the segment efficiency u...
Source: Applied Radiation and Isotopes - June 10, 2023 Category: Radiology Authors: Honglong Zheng Xianguo Tuo Wei Zhao Guang Yang Yuhao Li Rui Shi Qi Liu Source Type: research