Optimization study of chlorine detection sensitivity in concrete based on prompt gamma analysis using < sup > 252 < /sup > Cf neutron source
Appl Radiat Isot. 2022 Aug 1;188:110393. doi: 10.1016/j.apradiso.2022.110393. Online ahead of print.ABSTRACTChloride attack is a serious problem that decreases the durability of concrete structures of bridges and highways. A compact neutron salt meter with a252Cf neutron source and germanium (Ge) gamma-ray detector based on prompt gamma-ray neutron activation analysis (PGNAA) has been proposed to determine the chlorine concentration in concrete structures. The Optimization of the dimensions of its components, such as polyethylene (PE) moderator, graphite reflector, and lead shield, as well as the positions of the 252Cf sou...
Source: Applied Radiation and Isotopes - August 7, 2022 Category: Radiology Authors: Mingfei Yan Yasuo Wakabayashi Masato Takamura Yujiro Ikeda Yoshie Otake Source Type: research

Dosimetric effects of the ipsilateral shoulder position variations in the sitting-positioned boron neutron capture therapy for lower neck tumor
Appl Radiat Isot. 2022 Jul 31;188:110397. doi: 10.1016/j.apradiso.2022.110397. Online ahead of print.ABSTRACTWe aimed to evaluate dosimetric effects of ipsilateral shoulder position variations (ISPVs) in sitting-positioned boron neutron capture therapy (BNCT) for lower neck tumor. The ISPVs were simulated using deformed shoulder images that can simulate arbitrary shape. The dose-volume parameters for the tumor in the rotated shoulder plans considerably varied compared with that for the mucosa. Even in a small number of cases, these differences were clearly observed among patients. The ISPVs in lower neck BNCT have great do...
Source: Applied Radiation and Isotopes - August 7, 2022 Category: Radiology Authors: Ryohei Kato Katsumi Hirose Takahiro Kato Tomoaki Motoyanagi Kazuhiro Arai Takaomi Harada Akihiko Takeuchi Yuhei Yamazaki Yuki Narita Shinya Komori Mariko Sato Yoshihiro Takai Source Type: research

Nuclear model analysis and optimization of production data of the medically interesting < sup > 66,67,68 < /sup >  Ga via alpha induced reactions on < sup > 63,65 < /sup > Cu targets
Appl Radiat Isot. 2022 Jul 21;188:110379. doi: 10.1016/j.apradiso.2022.110379. Online ahead of print.ABSTRACTEvaluation of the 63Cu(α,n)66Ga, 65Cu(α,2n) 67Ga and 65Cu(α,n)68Ga reactions was done to study the production of medical radionuclides 66Ga, 67Ga and 68Ga respectively. 63Cu(α,2n)65Ga and 65Cu(α,3n)66Ga reactions were also evaluated for the estimation of radioisotopic impurities. Cross section data of each reaction were compiled and normalized to the standard values of decay data and monitor reaction. To check the consistency of the literature data, three nuclear model calculations were performed, using nuclear...
Source: Applied Radiation and Isotopes - August 5, 2022 Category: Radiology Authors: N Amjed A Naz A M Wajid M N Aslam I Ahmad Source Type: research

Nuclear model analysis and optimization of production data of the medically interesting < sup > 66,67,68 < /sup >  Ga via alpha induced reactions on < sup > 63,65 < /sup > Cu targets
Appl Radiat Isot. 2022 Jul 21;188:110379. doi: 10.1016/j.apradiso.2022.110379. Online ahead of print.ABSTRACTEvaluation of the 63Cu(α,n)66Ga, 65Cu(α,2n) 67Ga and 65Cu(α,n)68Ga reactions was done to study the production of medical radionuclides 66Ga, 67Ga and 68Ga respectively. 63Cu(α,2n)65Ga and 65Cu(α,3n)66Ga reactions were also evaluated for the estimation of radioisotopic impurities. Cross section data of each reaction were compiled and normalized to the standard values of decay data and monitor reaction. To check the consistency of the literature data, three nuclear model calculations were performed, using nuclear...
Source: Applied Radiation and Isotopes - August 5, 2022 Category: Radiology Authors: N Amjed A Naz A M Wajid M N Aslam I Ahmad Source Type: research

Modeling dose rate increase from the addition of Uranium-232 for use as a tracer in uranium fuels
This study examines the dose rate from different uranium materials that varying amounts of 232U has been added to. Several materials and their respective storage geometries are modeled for particle transport calculations. For each material and 232U concentration, gamma source terms were generated using SCALE 6.2 ORIGEN. These source terms were then used in MCNP for each material and geometry. Upon analysis, it was determined that the baseline dose from enriched uranium dominates until the 232U concentration reaches about 10-100 parts per trillion (ppt), after which the dose rate increases linearly.PMID:35921758 | DOI:10.10...
Source: Applied Radiation and Isotopes - August 3, 2022 Category: Radiology Authors: Joshua Rhodes G Ivan Maldonado Source Type: research

Modeling dose rate increase from the addition of Uranium-232 for use as a tracer in uranium fuels
This study examines the dose rate from different uranium materials that varying amounts of 232U has been added to. Several materials and their respective storage geometries are modeled for particle transport calculations. For each material and 232U concentration, gamma source terms were generated using SCALE 6.2 ORIGEN. These source terms were then used in MCNP for each material and geometry. Upon analysis, it was determined that the baseline dose from enriched uranium dominates until the 232U concentration reaches about 10-100 parts per trillion (ppt), after which the dose rate increases linearly.PMID:35921758 | DOI:10.10...
Source: Applied Radiation and Isotopes - August 3, 2022 Category: Radiology Authors: Joshua Rhodes G Ivan Maldonado Source Type: research

Modeling dose rate increase from the addition of Uranium-232 for use as a tracer in uranium fuels
This study examines the dose rate from different uranium materials that varying amounts of 232U has been added to. Several materials and their respective storage geometries are modeled for particle transport calculations. For each material and 232U concentration, gamma source terms were generated using SCALE 6.2 ORIGEN. These source terms were then used in MCNP for each material and geometry. Upon analysis, it was determined that the baseline dose from enriched uranium dominates until the 232U concentration reaches about 10-100 parts per trillion (ppt), after which the dose rate increases linearly.PMID:35921758 | DOI:10.10...
Source: Applied Radiation and Isotopes - August 3, 2022 Category: Radiology Authors: Joshua Rhodes G Ivan Maldonado Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research

Investigation on the chemical recovery and stability of a newly developed method for < sup > 137 < /sup > Cs measurement in marine biota Scomber Japonicus
Appl Radiat Isot. 2022 Jul 19;188:110381. doi: 10.1016/j.apradiso.2022.110381. Online ahead of print.ABSTRACTSeven sets of experiments based on a newly developed Mincing-Digesting method for 137Cs measuring in marine biota Scomber Japonicus were conducted to investigate the method's stability and chemical recovery. The results show the chemical recovery of radiocesium for aqueous parts is 68.77 ± 11.2%, which is relatively stable with R2 = 0.97, means this value could be used when measuring the Scomber Japonicus or other marine biota belonging to the same category and having similar muscular tissue and cellular structure....
Source: Applied Radiation and Isotopes - July 25, 2022 Category: Radiology Authors: Jianhua He Feng Lin Source Type: research