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Calibration of a gamma ray Compton camera for radioactivity measurements 校准用于放射性测量的伽马射线康普顿照相机
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI: 10.1007/s10967-024-09729-7
H. Heather Chen-Mayer, Dagistan Sahin, Bryan Remley, Steven Brown, David Goodman
{"title":"Calibration of a gamma ray Compton camera for radioactivity measurements","authors":"H. Heather Chen-Mayer, Dagistan Sahin, Bryan Remley, Steven Brown, David Goodman","doi":"10.1007/s10967-024-09729-7","DOIUrl":"https://doi.org/10.1007/s10967-024-09729-7","url":null,"abstract":"<p>A dual-plane Compton imaging detector previously developed for prompt gamma imaging has been further tested and calibrated for quantitative radioactivity determination, specifically to assess radioactive debris from a reactor fuel element. The debris piece contains uranium isotopes and several long-lived fission products, including cesium-137 (Cs-137). The detector consists of two pixelated planes of cadmium-zinc-telluride (CZT) crystals which record gamma ray events interacting within these volumes. In addition to the energy spectrum obtained by pulse height analysis, the time-stamped events from each detector pixel are sorted by location into 3 categories for post-processing: intra-plane, inter-plane, and coincidence. An image reconstruction software enables spatial localization of the select gamma ray peak(s) from the spectrum, thereby separating the gamma ray by specific isotopes. We used the camera to image a small piece of debris for demonstration purposes. A measurement was performed alongside a high purity germanium (HPGe) detector, which could determine the isotopes' absolute activities and be used as a reference for the camera. In addition, a known isotopic point source was used to calibrate the camera’s energy detection efficiency in the same measurement geometry, correlating the image pixel intensity to the isotopic activity.</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":"142219527","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}
引用次数: 0
In-house production of [99mTc][Tc-HYNIC-TATE] cold kit for the diagnosis of neuroendocrine tumors in Pakistan: pre-clinical and clinical evaluation of indigenously manufactured single and dual vial kit formulation 在巴基斯坦自行生产用于诊断神经内分泌肿瘤的[99m锝][Tc-HYNIC-TATE]冷试剂盒：对本国生产的单瓶和双瓶试剂盒配方进行临床前和临床评估
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI: 10.1007/s10967-024-09726-w
Shakera Khatoon Rizvi, Saima Tariq, Farkhanda Gilani, Amna Javed, Iqra Rafique
{"title":"In-house production of [99mTc][Tc-HYNIC-TATE] cold kit for the diagnosis of neuroendocrine tumors in Pakistan: pre-clinical and clinical evaluation of indigenously manufactured single and dual vial kit formulation","authors":"Shakera Khatoon Rizvi, Saima Tariq, Farkhanda Gilani, Amna Javed, Iqra Rafique","doi":"10.1007/s10967-024-09726-w","DOIUrl":"https://doi.org/10.1007/s10967-024-09726-w","url":null,"abstract":"<p>Neuroendocrine tumors (NETs) as compared to its octreotide (NOC) counterpart when labeled with In-111 and Tc-99m. This study was aimed to develop easy to use, cost effective, and commercially available diagnostic kit of [<sup>99m</sup>Tc][Tc-HYNIC-TATE] (Tyr3-Octreotate) indigenously to diagnose neuroendocrine tumors in Pakistan. HYNIC-TATE cold kit was optimized at 20µg of peptide (Octreotate), following co-ligand exchange labeling approach using EDDA/TRICINE (3:6 mg) while heating at 90 °C for 20 min. Radiochemical purity of [<sup>99m</sup>Tc][Tc-HYNIC-TATE] was &gt; 98 ± 0.14% when labeled with 550–850 MBq of Tc-99m and stable upto 12 h. Preclinical &amp; clinical investigations validated the higher sensitivity and specificity of the developed kits for spot-on detection of neuroendocrine tumours (NETs).</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","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":"142219526","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}
引用次数: 0
Neutron activation analysis for development of organic coffee leaves reference material 中子活化分析用于开发有机咖啡叶参考材料
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI: 10.1007/s10967-024-09745-7
Letícia de Lima, Elisabete A. De Nadai Fernandes, Silvana Regina Vicino Sarriés, Márcio Arruda Bacchi, Robson Campos de Lima, Gabriele Rossini Moreira
{"title":"Neutron activation analysis for development of organic coffee leaves reference material","authors":"Letícia de Lima, Elisabete A. De Nadai Fernandes, Silvana Regina Vicino Sarriés, Márcio Arruda Bacchi, Robson Campos de Lima, Gabriele Rossini Moreira","doi":"10.1007/s10967-024-09745-7","DOIUrl":"https://doi.org/10.1007/s10967-024-09745-7","url":null,"abstract":"<p>A reference material of <i>Coffea arabica</i> leaves from a farm with organic management certification was developed at CENA/USP. Neutron activation analysis was used to determine chemical elements, including assessment of homogeneity and stability. The material was characterized for Ba, Br, Ca, Co, Fe, K, La, Na, Rb, Sc, Sm, Sr and Zn. Reference values were assigned to all elements except Co and Zn whose homogeneous distribution in the material could not be confirmed.</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":"142219567","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}
引用次数: 0
Enhanced U(VI) biomineralization by Kocuria rosea via phytate hydrolysis Kocuria rosea 通过植酸盐水解作用提高铀(VI)的生物矿化能力
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI: 10.1007/s10967-024-09741-x
Jiarui Qu, Xuegang Wang, Xueqin Zhou, Shuo Sun, Chao Liu, Jian Wang, Xiaoxia Yu, Zhongkui Zhou, Yadan Guo
{"title":"Enhanced U(VI) biomineralization by Kocuria rosea via phytate hydrolysis","authors":"Jiarui Qu, Xuegang Wang, Xueqin Zhou, Shuo Sun, Chao Liu, Jian Wang, Xiaoxia Yu, Zhongkui Zhou, Yadan Guo","doi":"10.1007/s10967-024-09741-x","DOIUrl":"https://doi.org/10.1007/s10967-024-09741-x","url":null,"abstract":"<p>In this study, the mechanism by which <i>Kocuria rosea</i> immobilizes U(VI) ions in water via phytate hydrolysis was investigated. The results showed that the optimal initial pH value is 6.0 for uranium removal by <i>K. rosea</i> in the presence of phytate, SEM showed that phytate addition to the test system enhanced the particle sizes of uranium-containing crystalline products, XRD and XPS analyses revealed that in the presence of phytate, <i>K. rosea</i> precipitated uranium primarily as H<sub>2</sub>(UO<sub>2</sub>)<sub>2</sub>(PO<sub>4</sub>)<sub>2</sub>·8H<sub>2</sub>O, CaU(PO<sub>4</sub>)<sub>2</sub> and Na(UO<sub>2</sub>)(PO<sub>4</sub>)·3H<sub>2</sub>O. FT-IR spectroscopy also indicated that phytate hydrolysis resulted in the release of more phosphorus groups, thus enhanced the interaction between uranium and <i>K. rosea</i>. Taken together, phytate enhanced biomineralization while reducing the restoration cycle of uranium and increasing the size of uranium-containing crystalline particles in the products.</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":"142219529","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}
引用次数: 0
A new adsorbent of amidoxime functionalized porous corn stalk carbon and its adsorption properties for U(VI) from seawater 脒肟功能化多孔玉米秸秆碳新型吸附剂及其对海水中 U(VI) 的吸附特性
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-09 DOI: 10.1007/s10967-024-09721-1
Meiqing Fan, Hengyi Yuan, Xin Zhang, Bo Wang, Hong Zhang, Xiao’e Wang, Hongze An, Xu Zeng, Xiaofei Zhang, Bo Ren, Xiaodong Yang
{"title":"A new adsorbent of amidoxime functionalized porous corn stalk carbon and its adsorption properties for U(VI) from seawater","authors":"Meiqing Fan, Hengyi Yuan, Xin Zhang, Bo Wang, Hong Zhang, Xiao’e Wang, Hongze An, Xu Zeng, Xiaofei Zhang, Bo Ren, Xiaodong Yang","doi":"10.1007/s10967-024-09721-1","DOIUrl":"https://doi.org/10.1007/s10967-024-09721-1","url":null,"abstract":"<p>In this research, the polydopamine coating method and acrylonitrile addition grafting method were used to obtain corn stalk carbon modified by –C≡N (CSC@CN). Next, the amidoxime-modified corn stalk carbon was synthesized using a hydroxylamine hydrochloride electrophilic addition method. This modified carbon material was used as an adsorption material of uranyl ions. A series of experimental results showed that at a temperature of 298 K, the solid-liquid ratio is 0.4 g/L, the initial concentration of uranium solution is 150 ppm with pH = 6, and the adsorption time is 420 min, achieving the maximum adsorption capacity of uranium of 230.58 mg/g. The kinetic study of the adsorption process showed that it conformed to the quasi-second-order kinetic model, which belonged to chemisorption, and the Langmuir model, which belonged to monolayer adsorption. Thermodynamic studies showed that the standard enthalpy change <span>(Delta {text{H}}^{0} ; &lt; ;0)</span>, indicating that the adsorption process was endothermic. The standard Gibbs free energy change <span>(Delta {text{G}}^{0} ; &lt; ;0)</span>, indicating that the adsorption reaction was spontaneous. Furthermore, entropy <span>(Delta {text{S}}^{0} &gt; 0)</span>, suggesting an increase in confusion at the solid-liquid interface during the adsorption process.</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":"142219528","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}
引用次数: 0
Activation cross section for 85Rb(n,2n)84mRb and 85Rb(n,p)85mKr reactions with uncertainty propagation and covariance analysis 带有不确定性传播和协方差分析的 85Rb(n,2n)84mRb 和 85Rb(n,p)85mKr 反应的活化截面
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-05 DOI: 10.1007/s10967-024-09682-5
Mayur Mehta, N. L. Singh, Ratankumar Singh, R. Makwana, P. V. Subhash, Rakesh Chauhan, S. V. Suryanarayana, K. Katovsky
{"title":"Activation cross section for 85Rb(n,2n)84mRb and 85Rb(n,p)85mKr reactions with uncertainty propagation and covariance analysis","authors":"Mayur Mehta, N. L. Singh, Ratankumar Singh, R. Makwana, P. V. Subhash, Rakesh Chauhan, S. V. Suryanarayana, K. Katovsky","doi":"10.1007/s10967-024-09682-5","DOIUrl":"https://doi.org/10.1007/s10967-024-09682-5","url":null,"abstract":"<p>The cross section of <sup>85</sup>Rb(n,2n)<sup>84m</sup>Rb and <sup>85</sup>Rb(n,p)<sup>85m</sup>Kr reactions were measured at neutron energy range 12–20 MeV using activation analysis followed by off-line γ-ray spectroscopic technique. The quasi mono-energetic neutrons were produced through <sup>7</sup>Li(p,n)<sup>7</sup>Be reaction. The measurements were done relative to <sup>27</sup>Al(n,α)<sup>24</sup>Na reference monitor reaction cross section. The detailed uncertainty propagation from the attributes present in measurements was performed using covariance analysis. The γ-ray self-attenuation and background low neutron energy corrections were performed in the measurement studies. Theoretical calculations were performed by TALYS-1.96 nuclear code. The comparison of measured values with the available data in EXFOR database and evaluated data from JENDL-5 and EAF-2010 shows the measured cross section values of <sup>85</sup>Rb(n,p)<sup>85m</sup>Kr reaction were slightly higher than the published values, evaluated data and theoretical data while for <sup>85</sup>Rb(n,2n)<sup>84m</sup>Rb, the measured values were consistent with the published data.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219580","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}
引用次数: 0
Assessment of 238U, 232Th, 40K and heavy metals in soil samples of near Shivalik Hills and origin of Saraswati River, Yamuna Nagar of Haryana, India 印度哈里亚纳邦亚穆纳纳加尔什瓦利克山附近和萨拉斯瓦蒂河发源地土壤样本中 238U、232Th、40K 和重金属含量评估
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-05 DOI: 10.1007/s10967-024-09719-9
Rekha Dhiman, Jyoti Yadav, Bhupesh Khyalia, Naresh Kumar, Suneel Kumar, Ranjeet Dalal, Vishnu Chauhan, Harendra Kumar Yadav
{"title":"Assessment of 238U, 232Th, 40K and heavy metals in soil samples of near Shivalik Hills and origin of Saraswati River, Yamuna Nagar of Haryana, India","authors":"Rekha Dhiman, Jyoti Yadav, Bhupesh Khyalia, Naresh Kumar, Suneel Kumar, Ranjeet Dalal, Vishnu Chauhan, Harendra Kumar Yadav","doi":"10.1007/s10967-024-09719-9","DOIUrl":"https://doi.org/10.1007/s10967-024-09719-9","url":null,"abstract":"<p>The main goal of the study is to evaluate the activity level of gamma radiation from uranium (<sup>238</sup>U), thorium (<sup>232</sup>Th) and potassium (<sup>40</sup>K) using gamma spectrometry with NaI(Tl) detector and concentration of heavy metals (HM), i.e. lead (Pb), cadmium (Cd), nickel (Ni), cobalt (Co), iron (Fe) and chromium (Cr) using atomic absorption spectroscopy (AAS) in soil samples taken from different places of Saraswati River, Yamuna Nagar, Haryana in India. The mean value of <sup>238</sup>U, <sup>232</sup>Th, <sup>40</sup>K, radium equivalent activity and air-absorbed dose rate lies within the safe limit. The mean value of Radium equivalent activity and air-absorbed dose rate is within safe limits. The mean value of the corresponding HM is Fe &gt; Pb &gt; Ni &gt; Co &gt; Cd &gt; Cr. The findings indicate that the level of HM in the soil sample of the study area is considerably below the acceptable limit.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219533","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}
引用次数: 0
Determination of certified values for Co, Cr, and Zn in lake sediment CRM (KRISS 109-05-002) using the INAA method 使用 INAA 方法测定湖泊沉积物 CRM（KRISS 109-05-002）中钴、铬和锌的认证值
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-05 DOI: 10.1007/s10967-024-09728-8
Hana Cho, Kishore B. Dasari, Myung Chul Lim, Seong Pyo Hong, Gwang-Min Sun, Sung Woo Heo, Kyoung-Seok Lee
{"title":"Determination of certified values for Co, Cr, and Zn in lake sediment CRM (KRISS 109-05-002) using the INAA method","authors":"Hana Cho, Kishore B. Dasari, Myung Chul Lim, Seong Pyo Hong, Gwang-Min Sun, Sung Woo Heo, Kyoung-Seok Lee","doi":"10.1007/s10967-024-09728-8","DOIUrl":"https://doi.org/10.1007/s10967-024-09728-8","url":null,"abstract":"<p>The standard calibrator–instrumental neutron activation analysis method was used to characterize the mass fractions of Co, Cr, and Zn in a lake sediment certified reference material (CRM) developed by the Korea Research Institute of Standards and Science. The method was validated for each element and sediment matrix, and the CRM analysis was repeated to ensure reproducibility and address potential matrix interferences. To verify measurement reliability, quality control samples were also assessed. For lake sediment samples with a small Zn peak and dominant adjacent peaks of Eu and Sc, sequential measurements were performed to obtain accurate Zn concentrations. The optimal measurement timing was when the Sc peak sufficiently decayed and the intensity of the Zn peak remained larger than that of Eu. Moreover, an appropriate fitting program capable of deconvoluting complex peak regions is necessary.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219563","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}
引用次数: 0
Verification of seasonal correction factor for indoor radon concentration in Slovakia 斯洛伐克室内氡浓度季节校正系数的验证
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-05 DOI: 10.1007/s10967-024-09722-0
Monika Müllerová, Iveta Smetanová, Alžbeta Brandýsová, Viktória Benková, Kristian Csicsay
{"title":"Verification of seasonal correction factor for indoor radon concentration in Slovakia","authors":"Monika Müllerová, Iveta Smetanová, Alžbeta Brandýsová, Viktória Benková, Kristian Csicsay","doi":"10.1007/s10967-024-09722-0","DOIUrl":"https://doi.org/10.1007/s10967-024-09722-0","url":null,"abstract":"<p>The results of a pilot study performed on data from selected dwellings in Slovakia suggested that the best agreement between measured and calculated annual mean indoor radon activity concentration (RAC) were obtained by using seasonal correction factors (SCF) determined for winter season. In this paper, SCF was applied on results obtained during a new, independent radon survey conducted in homes during years 2022–2023. In this study, 79 rooms were monitored throughout the year in four cycles based on 3 month indoor radon measurements. The preliminary results show a good agreement between measured and calculated annual mean RAC.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219562","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}
引用次数: 0
Survey of environmental radioactivity at a decommissioned uranium mine in Southern China 中国南方一个退役铀矿的环境放射性调查
IF 1.6 3区 化学
Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-05 DOI: 10.1007/s10967-024-09736-8
Guoxin Qin, Xirui Wang, Dejun Zhao, Honggang Pan, Xu Jia, Yixuan Li
{"title":"Survey of environmental radioactivity at a decommissioned uranium mine in Southern China","authors":"Guoxin Qin, Xirui Wang, Dejun Zhao, Honggang Pan, Xu Jia, Yixuan Li","doi":"10.1007/s10967-024-09736-8","DOIUrl":"https://doi.org/10.1007/s10967-024-09736-8","url":null,"abstract":"<p>To gain a deeper understanding of the conditions at decommissioned uranium mines, on-site monitoring of environmental radioactivity was conducted at a decommissioned uranium mine in southern China. The results showed that the average surface γ-ray dose rate in the mining area and surrounding regions ranged from 83.2 to 286.6 nGy h<sup>–1</sup>, and the average concentration of radon and its progeny in the air ranged from 23.1 to 66.5 Bq m<sup>–3</sup> and 30.3 to 112.4 nJ m<sup>–3</sup>, respectively, which are below the national regulatory limits of China. After remediation, the uranium mine did not cause radioactive pollution to spread into the surrounding environment, indicating the effectiveness of remediation efforts over time.</p>","PeriodicalId":661,"journal":{"name":"Journal of Radioanalytical and Nuclear Chemistry","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219531","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}
引用次数: 0
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