Radiochimica Acta最新文献_第6页

Reverse phase liquid chromatographic method for the measurement of uranium in process stream solutions from uranium extraction facility 测量铀提取设施工艺流溶液中铀含量的反相液相色谱法

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0187

Yarasi Balaji Rao, Shehanaz Bano, Putta V. Nagendra Kumar, Dinesh Srivastava

引用次数: 0

Zirconium sponge production: an integrated approach for chemical characterization of process intermediates using ICP-OES 海绵锆生产：利用 ICP-OES 对工艺中间产物进行化学特征描述的综合方法

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0231

Yarasi Balaji Rao, Sirivella N. V. M. S. Gupta, Putta V. Nagendra Kumar, Dinesh Srivastava

{"title":"Zirconium sponge production: an integrated approach for chemical characterization of process intermediates using ICP-OES","authors":"Yarasi Balaji Rao, Sirivella N. V. M. S. Gupta, Putta V. Nagendra Kumar, Dinesh Srivastava","doi":"10.1515/ract-2023-0231","DOIUrl":"https://doi.org/10.1515/ract-2023-0231","url":null,"abstract":"The present paper discusses about the method developed for complete chemical characterization of Zirconium Washed and Dried Frit (WDF) and Reactor Grade ZrO2 powder which includes nonmetallic element sulphur using Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES). Studies have been carried-out on several important aspects of method development such as effect of matrix on determination of analytes, removal of matrix using different solvents, selection of interference free & sensitive wavelengths, calibration strategies like internal standard & standard addition, optimization of several instrumental parameters which includes RF power, plasma gas flow, nebulizer gas flow, nitrogen purging etc., and are discussed. A % RSD of less than 1 % for Zr and up to 3 % for other elements has been achieved in this method. The developed method has been validated using standard recovery of spiked real time samples with known amount of reference materials. Integrated approach adopted in the development of this method has resulted in reduction of analytical waste generated and also enabled to give quick analytical feedback to production plant for downstream processing.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":"120 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759125","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

Radiochemical and chemical characterization of fuel, salt, and deposit from the electrorefining of irradiated U-6 wt% Zr in hot cells 热电池中辐照铀-6 wt% Zr 电提炼产生的燃料、盐和沉积物的放射化学和化学特性分析

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0203

Dwarapudi Bola Sankar, Rajeswari Seshadri, Kalaiyarasu Thirunavukkarasu, Gurudas Pakhui, Jakkula Siva Brahmaji Rao, Suranjan Bera, Balija Sreenivasulu, Kumaresan Radhakrishnan, Periasamy Manoravi, Venkataraman Jayaraman

{"title":"Radiochemical and chemical characterization of fuel, salt, and deposit from the electrorefining of irradiated U-6 wt% Zr in hot cells","authors":"Dwarapudi Bola Sankar, Rajeswari Seshadri, Kalaiyarasu Thirunavukkarasu, Gurudas Pakhui, Jakkula Siva Brahmaji Rao, Suranjan Bera, Balija Sreenivasulu, Kumaresan Radhakrishnan, Periasamy Manoravi, Venkataraman Jayaraman","doi":"10.1515/ract-2023-0203","DOIUrl":"https://doi.org/10.1515/ract-2023-0203","url":null,"abstract":"Metal fuels are considered as the promising candidates for future fast breeder reactors. Pyro-chemical reprocessing is the ideal method for reprocessing spent metallic fuels due to the inherent process advantages. Electrorefining run was demonstrated in a hot cell facility with irradiated U-6 wt% Zr alloy at 500 °C using LiCl–KCl eutectic melt. In order to understand the behavior of the actinides and various fission products during high-temperature electrolysis, various process streams, viz., irradiated metal alloy fuel, the eutectic salt, and the cathode deposit were analyzed for the uranium, plutonium, and other fission product contents. Various methods employed for characterizing the process streams and the behaviors of some of the fission products during the electrolysis process are highlighted. The major gamma emitting radionuclides present in the irradiated fuel were 106Ru, 125Sb, 134Cs, 137Cs, 144Ce, and 154Eu. During electrorefining, cesium, cerium and europium were oxidized and dissolved in the molten media, whereas ruthenium and antimony remained in the anode basket. A minor contamination of zirconium was found in the cathode deposit.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":"68 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772984","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

Total chemical synthesis of PSMA-617: an API for prostate cancer endotherapeutic applications PSMA-617 的全化学合成：用于前列腺癌内治疗的原料药

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0205

Kalangattu Sundaran Ajish Kumar, Anupam Mathur

引用次数: 0

Theoretical analysis of light and heavy-ion induced reactions: production of medically relevant 97Ru 轻重离子诱导反应的理论分析：生产医学相关的 97Ru

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0199

Malvika Sagwal, Moumita Maiti

引用次数: 0

Excitation functions of alpha-particle induced nuclear reactions on nat Sn α粒子在锡上诱导核反应的激发函数

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0202

Mahesh Choudhary, Namrata Singh, Aman Sharma, Aman Gandhi, Mahima Upadhyay, Rebecca Pachuau, Sandipan Dasgupta, Jagannath Datta, Ajay Kumar

引用次数: 0

Preparation of [64Cu]Cu–NOTA complex as a potential renal PET imaging agent using 64Cu produced via the direct activation route 使用通过直接活化途径生产的 64Cu 制备[64Cu]Cu-NOTA 复合物，作为一种潜在的肾脏 PET 成像剂

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0206

Sourav Patra, Sachin Jadhav, Priyalata Shetty, Khajan Singh, Ardhi Rajeswari, K. V. Vimalnath, Avik Chakraborty, Rubel Chakravarty, Sudipta Chakraborty

{"title":"Preparation of [64Cu]Cu–NOTA complex as a potential renal PET imaging agent using 64Cu produced via the direct activation route","authors":"Sourav Patra, Sachin Jadhav, Priyalata Shetty, Khajan Singh, Ardhi Rajeswari, K. V. Vimalnath, Avik Chakraborty, Rubel Chakravarty, Sudipta Chakraborty","doi":"10.1515/ract-2023-0206","DOIUrl":"https://doi.org/10.1515/ract-2023-0206","url":null,"abstract":"Glomerular filtration rate (GFR) could be determined more accurately using renal positron emission tomography (PET) than conventional gamma imaging. Copper-64 [T ½ = 12.7 h, E β+ (max) = 653 keV, β+ branching ratio = 17.8 %, 1346 keV γ-photon (0.54 %), EC (43.8 %), β− emission (38.4 %)] in the form of its hydrophilic complex with 1,4,7-triazacyclononane-1,4,7-triacetic acid (NOTA) is proposed as a potent formulation for renal PET imaging. A lyophilized kit was developed for formulation of ∼370 MBq dose of [64Cu]Cu–NOTA complex in a facile single step process using 64Cu produced by thermal neutron activation in a research reactor. The complex could be synthesized with >99 % yield and retained its integrity even when challenged by apoferritin. The rapid accumulation of [64Cu]Cu–NOTA in the kidney and clearance through urinary path was demonstrated using PET/CT imaging and ex vivo biodistribution study carried out in healthy Wistar rats to elucidate its effectiveness as a renal PET-imaging agent.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":"16 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759219","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

Nanocrystalline Ce(OH)4-based materials: ruthenium selective adsorbent for highly alkaline radioactive liquid waste 基于 Ce(OH)4 的纳米晶材料：用于高碱性放射性废液的钌选择性吸附剂

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-13 DOI: 10.1515/ract-2023-0194

Jayaprakasam Selvakumar, Kumari Anshul, Padala A. Nishad, Bhaskarapillai Anupkumar, Subramanian Srinivasan, Nethapakkam R. Jawahar, Appadurai L. Rufus, Jayantha K. Gayen, Tulasi V. Krishna Mohan

{"title":"Nanocrystalline Ce(OH)4-based materials: ruthenium selective adsorbent for highly alkaline radioactive liquid waste","authors":"Jayaprakasam Selvakumar, Kumari Anshul, Padala A. Nishad, Bhaskarapillai Anupkumar, Subramanian Srinivasan, Nethapakkam R. Jawahar, Appadurai L. Rufus, Jayantha K. Gayen, Tulasi V. Krishna Mohan","doi":"10.1515/ract-2023-0194","DOIUrl":"https://doi.org/10.1515/ract-2023-0194","url":null,"abstract":"Cerium hydroxide, Ce(OH)4 (Ce), has been synthesised and assessed as a Ru-selective adsorbent for treating alkaline radioactive liquid waste. Infrared spectroscopy, thermal analysis, scanning electron microscopy, and energy-dispersive X-ray spectroscopy investigations confirmed the successful formation of nanocrystalline Ce from Ce(NO3)3·6H2O. Selective removal of 106Ru from the ion-exchange effluent of intermediate-level liquid waste (ILW) by Ce was assessed using a high-pure germanium (HPGe) gamma-ray spectrometer. The calculated average distribution coefficient (k D) was ∼200 mL/g. The percentage removal of 106Ru using Ce by varying time, [106Ru] and [Ce] was calculated. The adsorption of 106Ru on Ce follows pseudo-second-order and Freundlich isotherms. The calculated Q max was 93,584 Bq/g. Accelerated leaching studies of the Ru-laden Ce cement product were carried out and found suitable for transport and disposal. Further, Ce-Polyether sulphone (Ce-PES) and Ce-Chitosan (CeC) composites were prepared and assessed for their Ru-uptake capacity for engineering scale application.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":"18 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139759247","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

Application of thin boron deposit by electrophoresis as neutron detectors 将电泳薄硼沉积物用作中子探测器

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-12 DOI: 10.1515/ract-2023-0226

Mohamed Fares, Mohammed Messaoudi, Mohamed Yacine Debili, Kassida Negara

{"title":"Application of thin boron deposit by electrophoresis as neutron detectors","authors":"Mohamed Fares, Mohammed Messaoudi, Mohamed Yacine Debili, Kassida Negara","doi":"10.1515/ract-2023-0226","DOIUrl":"https://doi.org/10.1515/ract-2023-0226","url":null,"abstract":"Detecting nuclear radiation presents a distinctive challenge, particularly with neutrons, which are neutral particles. The method of direct detection involves the utilization of a converter material, acting as an intermediary. Boron plays a pivotal role in this process, reacting with thermal neutrons to generate alpha particles and lithium, with a notable energy release of 2.314 MeV during the 10B (n,α) 7Li reaction. This facilitates effective identification and measurement of neutrons in radiation detection systems. The paths of the particles α (for E = 1.474 MeV) and Li (for E Li = 0.842 MeV). The active medium of the nuclear detector, typically a gas, undergoes ionization by these highly charged particles, or they form ion pairs that are subsequently collected by electrodes to produce the signal at the detector’s output. Various deposit methods can be used for this purpose, electrophoresis offers a distinct advantage in terms of both simplicity and precision. This study details the utilization of the electrophoresis technique for the deposition of boron on the tube walls of prototype detectors developed within our laboratory.","PeriodicalId":21167,"journal":{"name":"Radiochimica Acta","volume":"30 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139772817","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

An LSC approach for tritium determination in gaseous mixtures optimized with respect to handling, reaction parameters and miniaturization towards microfluidic analysis 用于测定气态混合物中氚含量的 LSC 方法，在处理、反应参数和微型化方面进行了优化，以实现微流控分析

IF 1.8 3区化学

Radiochimica Acta Pub Date : 2024-02-12 DOI: 10.1515/ract-2023-0262

Alexandra Becker, Holger Lippold, Jantje Pauline Bäcker, Detlev Belder, Cornelius Fischer

引用次数: 0