Bhupesh Khyalia, Jyoti Yadav, Naresh Kumar, Rekha Dhiman, R. P. Chauhan, Rajat Parkash, Ranjeet Dalal
{"title":"Measurement and mapping of radon exhalation rate around the uranium mines in Sikar, Rajasthan, India","authors":"Bhupesh Khyalia, Jyoti Yadav, Naresh Kumar, Rekha Dhiman, R. P. Chauhan, Rajat Parkash, Ranjeet Dalal","doi":"10.1007/s10967-024-09754-6","DOIUrl":"https://doi.org/10.1007/s10967-024-09754-6","url":null,"abstract":"<p>Humans are exposed to radiation by the emission of radon gas from the soil surrounding them, necessitating the assessment of the radon exhalation levels in soil. The current study measures the radium concentration and radon mass exhalation rate in 34 soil samples obtained from diverse places near the purported uranium reserves in the Sikar districts of Rajasthan state, India. The concentration of radium is measured using the NaI scintillator detector, while the mass exhalation rate of radon is estimated using a smart RnDuo detector. The measured radium content in the soil is between 10.6–47.5 Bq kg<sup>−1</sup> with an average value of 21.7 Bq kg<sup>−1</sup>. With an average value of 20.6 mBq kg<sup>−1</sup> h<sup>−1</sup>, the radon mass exhalation rate ranges from 5.7–74.5 mBq kg<sup>−1</sup> h<sup>−1</sup>. A positive correlation is observed between <sup>226</sup>Ra concentration and <sup>222</sup>Rn mass exhalation rate. This study shows that the soil of this area is safe in terms of radium content and radon mass exhalation rates.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"NAA-LIMS: a laboratory information management system for neutron activation analysis at the Peruvian institute of nuclear energy","authors":"Jherson Rivas, Patricia Bedregal","doi":"10.1007/s10967-024-09731-z","DOIUrl":"https://doi.org/10.1007/s10967-024-09731-z","url":null,"abstract":"<p>This work presents a modular laboratory information management system (LIMS) developed at the Peruvian Institute of Nuclear Energy for neutron activation analysis using the <i>k</i><sub>0</sub> method. The LIMS is based on Visual Studio, WinForms, the.NET Framework, and C#. It digitizes processes and ensures metrological traceability while facilitating sample management, spectral processing, and neutron flux characterization. Data is stored securely in the cloud to allow instant and secure access by multiple users. Its innovation lies in the personalized and modular design, which optimizes laboratory efficiency without requiring significant adjustments to existing procedures. In addition, it was designed for it to be adaptable for use by other research organizations.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Giovanni Ceccio, Jiri Vacik, Vasyl Lavrentiev, Ivo Tomandl, Romana Miksova, Kazumasa Takahashi
{"title":"Study of thin film composites based on LiCoO2 and C60 using neutron depth profiling and atomic force microscopy","authors":"Giovanni Ceccio, Jiri Vacik, Vasyl Lavrentiev, Ivo Tomandl, Romana Miksova, Kazumasa Takahashi","doi":"10.1007/s10967-024-09753-7","DOIUrl":"https://doi.org/10.1007/s10967-024-09753-7","url":null,"abstract":"<p>In this work, two thin hybrid composites based on organic-like fullerenes (bucky balls C<sub>60</sub>) and inorganic compounds of lithium cobalt oxide (LiCoO<sub>2</sub>) were prepared. The composites were synthesized by a combined method of ion sputtering and evaporation. The prepared samples were sandwiched between 2 gold electrodes and subjected to charging at an applied small voltage. After each charging process, the samples were analyzed using two appropriate methods—the surface morphology was monitored using AFM (Atomic Force Microscopy), and lithium depth concentration profiles were measured using NDP (Neutron Depth Profiling). The results of the measurements showed that both types of composite experienced significant changes both in the surface morphology and especially in the depth distribution of lithium. The test confirmed the expectation that the unusual hybrid combination of organic and inorganic phases is electrochemically active and exhibits characteristics of Li battery behavior.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sang-Hun Lee, Mansoo Choi, Byung-Seon Choi, Wang-Kyu Choi, Naon Chang, Dong Woo Lee, Jeongmook Lee, Jong-Yun Kim, Sang Ho Lim
{"title":"Efficient removal of cobalt ions by capacitive deionization using an asymmetric electrode","authors":"Sang-Hun Lee, Mansoo Choi, Byung-Seon Choi, Wang-Kyu Choi, Naon Chang, Dong Woo Lee, Jeongmook Lee, Jong-Yun Kim, Sang Ho Lim","doi":"10.1007/s10967-024-09748-4","DOIUrl":"https://doi.org/10.1007/s10967-024-09748-4","url":null,"abstract":"<p>Water pollution by metals is increasing. An electrode material, copper hexacyanoferrate (CuHCF), for capacitive deionization (CDI) to remove Co<sup>2+</sup> from wastewater was developed. The asymmetric electrode structure of the CDI overcomes the limitations of traditional activated carbon electrodes (low ion removal capacity, ion removal rate, and charge efficiency). The specific capacitance of the CuHCF electrode (216.7 F g<sup>−1</sup>) at 1 mV s<sup>−1</sup> was higher than that of a traditional electrode (92.0 F g<sup>−1</sup>), and its deionization capacity was 156.85 mg g<sup>−1</sup> in 50 mg L<sup>−1</sup> aqueous Co<sup>2+</sup> (charge efficiency = 68.4%). CuHCF is a high-performance electrode material for wastewater remediation.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guichuan Kang, Li He, Zhengwei He, Xiaoyi Wu, Sensen Guan
{"title":"Radon gas and geomorphic analysis as supportive tools for fault exploration: an example from the Aba South Fault basin, western Sichuan","authors":"Guichuan Kang, Li He, Zhengwei He, Xiaoyi Wu, Sensen Guan","doi":"10.1007/s10967-024-09740-y","DOIUrl":"https://doi.org/10.1007/s10967-024-09740-y","url":null,"abstract":"<p>Clarifying the response relationship between soil radon gas anomalies and active fault tectonic geomorphology, and to explore a rapid prediction method for concealed fractures, soil radon gas measurements and unmanned aerial vehicle micro-geomorphic scanning were carried out in the basin section of the Aba South Fault in western Sichuan. The areas of radon gas anomalies and tectonic features formed by fracture activities are highly consistent with the distribution areas of hidden fractures. It is concluded that the combination of soil radon gas measurements and tectonic geomorphologic analysis can rapidly and accurately predict hidden fractures covered by Quaternary sediments.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cesium removal from acidic solution by 1,3-alternate calix[4]arene-2,4-crown-6 impregnated sorbents","authors":"Zhen Xu, Tengfei Cui, Qing Chang, Haolong Wang, Qiang Jin, Zongyuan Chen, Zhijun Guo","doi":"10.1007/s10967-024-09738-6","DOIUrl":"https://doi.org/10.1007/s10967-024-09738-6","url":null,"abstract":"<p>The removal of radioactive Cs(I) is critical for the management of radioactive liquid waste. In this study, four sorbents impregnated with different 1,3-alternate calix[4]arane-2,4-crown-6 ligands on XAD-7 resin were prepared for Cs(I) selective removal from strongly acidic aqueous solution. The ligands differ in the substituent groups (benzyl, 4-tert-butyl benzyl, isopropyl, and <i>n</i>-octyl) at 1,3-alternate positions of the supramolecular platform of calix[4]arane-2,4-crown-6 ether. The sorption of Cs(I) was investigated as a function of contact time, HNO<sub>3</sub> concentration, ligand concentration and temperature using a batch method. The experimental results indicated that Cs(I) sorption on the sorbents is rapid and reaches sorption steady state in 30 min. All sorbents exhibit excellent Cs(I) sorption selectivity in a simulated high-level liquid waste (HLLW). Cs(I) sorption on the sorbents is an exothermic process. The substituent groups of the ligands affect both the kinetics and the thermodynamics of Cs(I) sorption on the sorbents. The sorbents impregnated with benzyl and 4-tert-benzyl derivatives exhibit better Cs(I) sorption performance in terms of Cs(I) sorption distribution coefficient and Cs(I) selectivity in the simulated HLLW system.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rafaella Menezes Ayllon, Jefferson Koyaishi Torrecilla, Cátia Rosignoli Saueia, Marcelo Bessa Nisti, Guilherme Soares Zahn, Horácio Marconi da Silva Matias Dantas Linhares, Thammiris Mohamad El Hajj, Marcos Roberto Furlan, Paulo Sergio Cardoso da Silva
{"title":"Activity concentration of natural radionuclides (238U, 226Ra, 232Th, 228Ra and 40K) in lettuce cultivated in soil amended with niobium tailings","authors":"Rafaella Menezes Ayllon, Jefferson Koyaishi Torrecilla, Cátia Rosignoli Saueia, Marcelo Bessa Nisti, Guilherme Soares Zahn, Horácio Marconi da Silva Matias Dantas Linhares, Thammiris Mohamad El Hajj, Marcos Roberto Furlan, Paulo Sergio Cardoso da Silva","doi":"10.1007/s10967-024-09742-w","DOIUrl":"10.1007/s10967-024-09742-w","url":null,"abstract":"<div><p>This study evaluates the possible agricultural application of calcium carbonate derived from niobium extraction. This carbonate is stored in dams, and it is enriched with radionuclides from <sup>232</sup>Th series, which imposes restrictions on its use. Activity concentration evaluation in soil was performed before the tillage of lettuce (<i>Lactuca sativa L.</i>) and the soil–plant transfer factor was determined. Results showed the dilution factor applied to the carbonate in the soil causes insignificant increments in soil activity concentration. In cultivated lettuce, high activity concentrations of <sup>228</sup>Ra and <sup>226</sup>Ra were found independently when using either the control or carbonate amended soil.</p></div>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Calculation of the absorbed dose to 99mTc-HMPAO, 99mTc-DMSA, and 99mTc-sulfur colloid injected patients by using Monte Carlo and MIRD methods","authors":"Farzane Mohajeri, Ahad Ollah Ezzati","doi":"10.1007/s10967-024-09732-y","DOIUrl":"https://doi.org/10.1007/s10967-024-09732-y","url":null,"abstract":"<p>This study compares the accuracy of dosimetry calculations using the Monte Carlo (MC) method and the MIRD method for <sup>99m</sup>Tc-HMPAO, <sup>99m</sup>Tc-DMSA, and <sup>99m</sup>Tc-sulfur colloid administered to an adult female patient undergoing SPECT imaging. Comparing the two methods, the dose estimation differences between MC and MIRD methods were found to be 11.57%, 1.70%, and 30.04% for <sup>99m</sup>Tc-HMPAO, <sup>99m</sup>Tc-DMSA, and <sup>99m</sup>Tc-sulfur colloid, respectively. In conclusion, this study emphasizes the importance of accurate dosimetry in nuclear medicine. The MC method perform better than the MIRD method in predicting absorbed doses, making it a valuable tool for optimizing radiation therapies and improving patient outcomes.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jiulin Wu, Ruomei Xie, Haibo Yi, Tao Hu, Jiale Sun, Zhipeng Liu, Huiying Li, Shuaibin liu, Shuai Yuan, Yanliang Tan
{"title":"Laboratory study on the relationship between the vertical distribution of radon concentration in soil and the exhalation rate of radon from the soil surface","authors":"Jiulin Wu, Ruomei Xie, Haibo Yi, Tao Hu, Jiale Sun, Zhipeng Liu, Huiying Li, Shuaibin liu, Shuai Yuan, Yanliang Tan","doi":"10.1007/s10967-024-09755-5","DOIUrl":"https://doi.org/10.1007/s10967-024-09755-5","url":null,"abstract":"<p>In this paper, One-dimensional diffusion of radon in the natural environment was used to simulate by a simple device. According to experimental results, combined with Fick’s law, it can be fitted that the effective diffusion coefficient <i>D</i><sub><i>e</i></sub> of radon in the soil in this experiment is 1.8 × 10<sup>–6</sup> ± 6.6 × 10<sup>–7</sup> m<sup>2</sup>s<sup>−1</sup>, the soil radon equilibrium concentration is 25.1 ± 2.4 kBq/m<sup>3</sup>, the radon exhalation rate on the soil surface is 47 ± 17 mBqm<sup>−2</sup> s<sup>−1</sup>. The radon exhalation rate of soil surface was measured twice by an accumulation chamber, the measured results are similar to the calculated results.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paulo Victor David Cavalcante, Lindomar Avelino da Silva, Carlos Henrique Lucena Araújo, Glória Maria Vinhas, Kátia Aparecida da Silva Aquino
{"title":"Effect of gamma irradiation in the coffee grounds oil and kernel mango fat properties","authors":"Paulo Victor David Cavalcante, Lindomar Avelino da Silva, Carlos Henrique Lucena Araújo, Glória Maria Vinhas, Kátia Aparecida da Silva Aquino","doi":"10.1007/s10967-024-09713-1","DOIUrl":"https://doi.org/10.1007/s10967-024-09713-1","url":null,"abstract":"<p>In this study, coffee ground oil (CGO) and kernel mango fat (KMF) were exposed to gamma irradiation at 25 kGy and physicochemical properties were analyzed by <sup>1</sup>H NMR, FT-IR, and TGA methods. A decrease in the average molecular weight and iodine index of KMF irradiated was observed. The CGO irradiated undergoes more unsaturated, and no significant changes (<i>p</i> < 0.05) were observed for the physicochemical properties studied. The thermal degradation behavior of KMF is different from CGO due to its higher saturation degree. The unsaturation degree plays an important role in thermal degradation behavior of studied lipids exposed to gamma irradiation.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}