Radiochimica Acta最新文献_第6页

Development of Dy3+ doped lithium magnesium borate glass system for thermoluminescence based neutron dosimetry applications 为基于热释光的中子剂量测定应用开发掺杂 Dy3+ 的硼酸镁锂玻璃系统

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-03-11 DOI: 10.1515/ract-2023-0209

Meghnath Sen, Rakesh Shukla, Raman K. Mishra, Nimai Pathak, Vilippalil Sathian, Probal Chaudhury

{"title":"Development of Dy3+ doped lithium magnesium borate glass system for thermoluminescence based neutron dosimetry applications","authors":"Meghnath Sen, Rakesh Shukla, Raman K. Mishra, Nimai Pathak, Vilippalil Sathian, Probal Chaudhury","doi":"10.1515/ract-2023-0209","DOIUrl":"https://doi.org/10.1515/ract-2023-0209","url":null,"abstract":"The manuscript reports the synthesis of Dy3+ incorporated lithium magnesium borate glass by melt quenching technique. FTIR study revealed the presence of both BO3 as well as tetrahedral BO4 units through their characteristic frequencies. Photoluminescence (PL) study of unirradiated samples confirmed the presence of Dy dopant in the ‘+3’ oxidation states from the characteristic emissions at 482, 578, 666 and 716 nm corresponding to 4F9/2 → 6H15/2, 4F9/2 → 6H13/2 and 4F9/2 → 6H11/2, 4F9/2 → 6H9/2 transitions, respectively. Thermal neutron and gamma irradiated PL emission and lifetime characteristics were discussed in details based on the different defect centers. Thermal neutron irradiated TL study showed that the material has a broad and single dosimetry glow peak at about 450 K which showed high fading due to low temperature peak. TL based neutron sensitivity of LMB: Dy3+ was found to be about 37.4 times less than that of standard TLD-100 (LiF: Mg, Ti) powder. The net TL response from about 3 to 83 mSv of neutron dose was found to be linear (Adj. R2 = 0.9994) which is one of the most desirable properties for dosimetry applications. In addition, the TL trap parameters were evaluated using both deconvolution of TL glow curve and peak shape method as suggested by Chen which were found to be matching with each other.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140108296","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}

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Development of [64Cu]Cu-BPAMD for PET imaging of bone metastases 开发用于骨转移 PET 成像的[64Cu]Cu-BPAMD

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-03-06 DOI: 10.1515/ract-2023-0236

Samaneh Zolghadri, Fateme Badipa, Hassan Yousefnia, Zahra Shiri-Yekta

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Investigation of the dose-response linearity of guar gum for gamma-ray dosimetry at radiation processing levels using Raman spectroscopy 利用拉曼光谱研究瓜尔豆胶在辐射加工级伽马射线剂量测定中的剂量-反应线性关系

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-22 DOI: 10.1515/ract-2023-0246

Shahryar Malekie, Amir Veiskarami

引用次数: 0

A novel method for evaluating the depletion of veterinary pharmaceuticals using radioisotopes 利用放射性同位素评估兽药损耗的新方法

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-15 DOI: 10.1515/ract-2023-0249

Yousef Fazaeli, Gholamreza Shahhoseini, Alireza Neisi, James Jacob Sasanya, Parviz Ashtari, Shahzad Feizi

{"title":"A novel method for evaluating the depletion of veterinary pharmaceuticals using radioisotopes","authors":"Yousef Fazaeli, Gholamreza Shahhoseini, Alireza Neisi, James Jacob Sasanya, Parviz Ashtari, Shahzad Feizi","doi":"10.1515/ract-2023-0249","DOIUrl":"https://doi.org/10.1515/ract-2023-0249","url":null,"abstract":"Antimicrobial resistance (AMR) as one of the world’s most pressing public health problems needs immediate attention, because it has the ability to affect the human healthcare, agriculture, and veterinary industries. Despite warnings about overuse and their implications, antimicrobials are overprescribed worldwide for humans and animals, which leads to the promotion of resistant microorganisms such as bacteria. Food is a medium for exposure to or transfer of residues of the drugs and can contribute to the burden of the pharmaceuticals associated with development of AMR. Studying on residues of veterinary drugs in foods is essential in the fight against AMR. Herein, we introduce a new method for visualizing the residues of a veterinary drug in animal matrices using radionuclides, called “Depletion Imaging”. Amoxicillin was chosen to be the first antimicrobial for this study. The drug was labeled with [62Zn/65Zn] ZnCl2. Radiolabelled amoxicillin and non-labeled amoxicillin were administrated to rainbow trout fish simultaneously. To enable visualization of the remaining residues of amoxicillin in fish, In-vivo positron emission tomography (PET) imaging was done at different intervals from 30 min to 21 days after administration. Evaluation of the amount of radiolabelled amoxicillin in fish was done using a high purity germanium (HPGe) nuclear detector, and enzyme linked immunosorbent assay (ELISA) technique was used for the non-labeled drug. In this study, a comprehensive method for in-house production of zinc radioisotopes was also included. The results showed that depletion imaging and biodistribution study based on gamma spectroscopy of radionuclides in tissues, is a precise method for accurate understanding of the drug’s distribution, metabolic and excretory profile.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772950","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}

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Activation cross sections for the formation of 51Cr and 52,54Mn in interactions of deuterons with iron 氘核与铁相互作用形成 51Cr 和 52,54Mn 的活化截面

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0259

M. Mehedi Hasan, M. Shuza Uddin, A. Kumer Chakroborty, M. Shamsuzzoha Basunia

引用次数: 0

Production and radiochemical separation of 68Ge from irradiated Ga–Ni alloy target in 30 MeV cyclotron 在 30 MeV 回旋加速器中从辐照镓镍合金靶中生产 68Ge 并进行放射化学分离

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0195

S. Chattopadhyay, Samarjit Singha, Shayantani Ash, Luna Barua, Devaraj G. Mahesh, Sujata SahaDas, Madhusmita, Md. Nayer Alam, Umesh Kumar, Suprakash Roy, Prosenjit Dhang, S. Dey

引用次数: 0

Evaluating sustainability of Bhuj aquifer system, Western India using nuclear dating techniques 利用核年代测定技术评估印度西部布吉含水层系统的可持续性

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0198

Annadasankar Roy, Uday Kumar Sinha, Bharatkumar Hathi, Sitangshu Chatterjee, Diksha Pant, Hemant Mohokar, Ajay Jaryal, Harish Jagat Pant, Dipankar Saha, Ratan Jain, Tirumalesh Keesari

{"title":"Evaluating sustainability of Bhuj aquifer system, Western India using nuclear dating techniques","authors":"Annadasankar Roy, Uday Kumar Sinha, Bharatkumar Hathi, Sitangshu Chatterjee, Diksha Pant, Hemant Mohokar, Ajay Jaryal, Harish Jagat Pant, Dipankar Saha, Ratan Jain, Tirumalesh Keesari","doi":"10.1515/ract-2023-0198","DOIUrl":"https://doi.org/10.1515/ract-2023-0198","url":null,"abstract":"Increasing population, food demands and climatic stressors pose an imminent threat to groundwater sustainability in regional aquifer systems globally. Limited availability of surface water and erratic/uncertain rainfall necessitates preservation of groundwater resources, which form reliable fresh water reserves in most of the arid regions. Bhuj Sandstone aquifer is one such fresh groundwater systems in Western India catering the domestic/irrigational needs for over 2 million population. Rapid groundwater depletion in this area warranted a mandatory conservation of groundwater resources for future sustainability. Nuclear techniques using 3H and 14C provide estimates of groundwater age that help in planning sustainable groundwater management. In this study, sustainability of deep groundwater was assessed using environmental radioactive isotopes (3H, 14C). Results indicate that 14C activity of the groundwater samples varies from 26 to 73.6 pMC (percent modern carbon). Considering the various biases and uncertainties present, multiple correction models were applied to obtain representative groundwater ages by incorporating stable (13C) isotope and hydrogeochemical data. The corrected and representative ages are found to range from 5.8 to 8.6 ka BP (thousand years before present). From the study it can be inferred that central Bhuj aquifer hosts paleo-groundwater while the western part is recently recharged. Therefore, over-exploitation of deep groundwater in central Bhuj aquifer may further lower the water levels and this would have long-term impact on the socio-economic development of Kutch region.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759128","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

Alpha-hydroxyisobutyric acid-assisted solid-liquid chromatography for the separation of lutetium-177 from neutron-irradiated natural ytterbium α-羟基异丁酸辅助固液色谱法分离中子辐照天然镱中的镥-177

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0234

Aulia Arivin Billah, Kukuh Eka Prasetya, Fany Triyatna, Daya Agung Sarwono, Abidin Abidin, Fernanto Rindiyantono, Maiyesni Maiyesni, Miftakul Munir, Indra Saptiama, Rien Ritawidya, Agustino Zulys

引用次数: 0

Non-destructive assay of plutonium in absence of gamma-ray spectrometry 在没有伽马射线光谱仪的情况下对钚进行无损检测

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0193

Sanhita Chaudhury, Ashwani Kumar, Sabyasachi Patra, Rahul Tripathi

{"title":"Non-destructive assay of plutonium in absence of gamma-ray spectrometry","authors":"Sanhita Chaudhury, Ashwani Kumar, Sabyasachi Patra, Rahul Tripathi","doi":"10.1515/ract-2023-0193","DOIUrl":"https://doi.org/10.1515/ract-2023-0193","url":null,"abstract":"Gamma-ray spectrometry-based isotopic composition analysis is a prerequisite for absolute non-destructive assay of Pu by neutron counting or calorimetry. However, gamma-ray spectrometry can be complicated in samples that are heavily shielded or have a high 241Am fraction. Herein, for the absolute non-destructive assay of Pu, a simple yet potent empirical methodology combining neutron multiplicity counting and calorimetry is proposed, which obviates the need for gamma-ray spectrometry-based isotopic composition analysis. The approach includes stepwise correlation between the parameters obtained from neutron multiplicity counting, i.e., α ((α, n) neutron to spontaneous fission neutron ratio), effective mass of 240Pu, and D (doubles neutron rate) with the thermal power output (W Pu) due to radioactive decay (measured by calorimetry). Because D and W Pu both are governed by the Pu isotopic composition, their correlation should be sensitive to the isotopic information in a given sample. Mandatory correction for the 241Am contribution in W Pu was done using the linear plot between its weight fraction and the corresponding α. The proposed methodology was validated by analyzing several PuO2 standards containing high 241Am fraction (0.02–0.09). The measured Pu amounts were within 8 % of the actual values with measurement uncertainties between 8 and 10 %, which shows the potential of the proposed methodology for the assay of samples having high 241Am content or for the quantification of Pu in heavily shielded samples.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759242","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

Measurements of 222Rn exhalation rates, effective 226Ra contents, and radiological risks from geological samples of Kopili Fault Zone and gneissic complex of Shillong Plateau, India 印度科皮里断裂带和志龙高原片麻岩复合体地质样本中 222Rn 呼出率、有效 226Ra 含量和辐射风险的测量结果

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-14 DOI: 10.1515/ract-2023-0232

Pranjal Protim Gogoi, Sarat Phukan, Debajyoti Barooah

{"title":"Measurements of 222Rn exhalation rates, effective 226Ra contents, and radiological risks from geological samples of Kopili Fault Zone and gneissic complex of Shillong Plateau, India","authors":"Pranjal Protim Gogoi, Sarat Phukan, Debajyoti Barooah","doi":"10.1515/ract-2023-0232","DOIUrl":"https://doi.org/10.1515/ract-2023-0232","url":null,"abstract":"This report unveils the outcomes of measurements of 222Rn exhalation rates, effective 226Ra content, and the annual effective dose for rocks and soil collected in the vicinity and far from the seismically active Kopili Fault Zone, India. LR-115 (II) nuclear track detector has been used to investigate radiation exposure in the seismically active fault zone and gneissic complex of the Shillong Plateau, which have significant geological characteristics and frequently produce earthquakes. In this study, 222Rn mass exhalation rates for granite, gneiss, and soil samples collected near and far from the fault were calculated to be in the ranges of 73.2–83.0, 11.0–14.8, 21.1–70.7 and 34.3–65.5, 6.4–9.9, 19.1–28.9 mBq kg−1 h−1, respectively. Surface exhalation rates of 222Rn for granite, gneiss, and soil samples collected near and far from the fault varied between 2428.8–2751.7, 365.6–491.9, 698.3–2345.9, and 1138.6–2172.7, 211.9–328.2, 634.9–960.0 mBq m−2 h−1, respectively. The 226Ra contents of granite, gneiss, and soil collected in similar distributions were found to vary from 9.76–11.06, 1.47–1.98, 2.8–9.4, and 4.58–8.74, 0.85–1.32, 2.6–3.6 Bq kg−1, respectively. The annual effective doses attributed to 222Rn inhalation from exposure to the samples were calculated to be in the ranges of 176.3–199.8, 26.5–35.7, 50.7–170.3 and 82.7–157.7, 15.4–23.8, 46.1–69.7 μSv y−1, respectively, for granite, gneiss, and soil. The lifetime fatality-risks have also been analysed in this study. The samples that were collected in close proximity to the fault showed higher values than those that were collected farther away. However, the results reveal that the measured values are within the globally recognised permissible range.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":null,"pages":null},"PeriodicalIF":1.8,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759249","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