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The text is an editorial from the Journal of Radioanalytical & Nuclear Chemistry, remembering the life and contributions of Professor Dr. Tibor Braun. Professor Braun, the founder and honorary Editor-in-Chief of the journal, passed away in September 2022. The editorial highlights his achievements, including founding three international journals and authoring over 200 scientific articles. It also discusses his efforts to promote international collaboration and support scientists from developing countries. The editorial concludes with condolences to Professor Braun's family and colleagues. [Extracted from the article]

The ARCEBS conference, also known as the international conference on Application of RadiotraCers and Energetic Beams in Sciences, is a quadrennial event. The fifth ARCEBS conference, originally scheduled for 2022 but delayed due to the COVID pandemic, was held from January 31 to February 5, 2023, at Kushal Palli, Purulia. Over a hundred delegates from India and abroad attended, with presentations covering a range of disciplines including radioisotope production, nuclear data, radiotracer applications in chemical and biological sciences, environmental radioactivity, and more. The conference was organized with the support of the International Atomic Energy Agency and received financial support from the Ministry of Earth Sciences, Govt. of India. The success of the conference was attributed to the technical content and the contributions of the International Advisory Committee, National Organizing Committee, and local volunteers. The next ARCEBS conference is scheduled for 2026. [Extracted from the article]

The editorial in "Molecules" honors Professor Zhifang Chai for his significant contributions to actinoid chemistry and radiochemistry. Prof. Chai led efforts to develop a strategic plan for the future of radiochemistry in China, resulting in a comprehensive book that addresses various challenges and potential solutions in the field. He also oversaw the creation of an encyclopedia volume on nuclear techniques, providing a valuable resource for researchers. Prof. Chai's initiatives have played a key role in revitalizing radiochemistry in China, leading to increased research institutions and opportunities for young talents in the field. [Extracted from the article]

Prof. Dr. Melissa A. Denecke has been awarded the 2023 Hevesy Medal for her significant contributions to radiochemical separations, actinides in the environment, and pioneering X-ray spectroscopy studies of radioactive elements. She is an internationally recognized expert in speciation of actinide elements and has extensive experience in X-ray spectroscopy and advanced spectroscopic data analysis. In addition to her research, Prof. Denecke has made significant contributions to radiochemistry education and has been active in supporting and engaging young people, particularly women, in the field. She has received numerous prestigious awards and has published over 130 papers in peer-reviewed international journals. [Extracted from the article]

Selective separation of an individual actinide of interest from other actinides and accompanying lanthanides is a challenging task in radiochemistry and radioanalytical chemistry. This paper illustrates a dual column technique (i.e., stacked columns of two appropriate resins) to separate an individual actinide of interest, where the selection of two resins and a common effluent running through the stacked columns are key parameters in design of an appropriate dual column. This paper describes the dual column design and practice with two examples, one for a heavy actinide 249Bk and the other for a light actinide 230U. In the former case, stacked columns of anion exchange (AX) resin and LN resin replaced the traditional CX-AHIB method used at Oak Ridge National Laboratory for 60 years. In the latter case, an elution process with an AX column followed with a stacked column of AX resin and a DGA resin was applied, instead of traditional methods, e.g., PUREX or U-TEVA methods. Application results of the dual column method to the two example actinides are displayed, while the considerations in method design and the required conditions are discussed. [ABSTRACT FROM AUTHOR]

7.4.1 Organizations involved in education There are currently no organizations that formulate recommendations on curricula for degrees in radiochemistry and nuclear chemistry or that accredit degree programs specifically in radiochemistry and nuclear chemistry. The distribution in the age of the nuclear and radiochemistry workforce in the United States can be represented by a double-peaked curve: The first peak occurred with those professionals who received their training during the 1960s and 1970s but was followed by a significant decrease in the output of PhD students during the 1980s, 1990s, and early 2000s[[2]]; the second, larger peak in the workforce occurred with the cohort who received their training during the mid- to late-2000s. However, in conversations with the DOE National Nuclear Security Administration (which sponsors radiochemistry through their NA-10 and NA-20 offices), DHS, and DTRA, there has been considerable hesitancy to release the number of students funded on projects related to radiochemistry, at either the undergraduate or graduate level, so that the levels and stability of this supply in workforce entrants are unclear. Keywords: nuclear chemistry; radiochemistry; workforce EN nuclear chemistry radiochemistry workforce 1 6 6 01/31/23 20221202 NES 221202 7.1 INTRODUCTION The disciplines of radiochemistry and nuclear chemistry have direct applications in the fields of national security, nuclear medicine, nuclear power production, and environmental management. [Extracted from the article]

The 16th biennial symposium on Nuclear and Radiochemistry (NUCAR-2023) was held in Mumbai, India in May 2023. The symposium, funded by the Board of Research in Nuclear Sciences (BRNS) and organized by the Bhabha Atomic Research Centre (BARC) in cooperation with the Indian Association of Nuclear Chemists and Allied Scientists (IANCAS), aimed to provide a platform for scientists and researchers to discuss recent advances in various topics related to nuclear and radiochemistry. The symposium included plenary talks, topical lectures, invited talks, and presentations by young scientists. In addition, a special half-day meeting was organized to commemorate the Platinum Jubilee Year of the Indian Atomic Energy Commission. A total of 17 manuscripts were selected for publication in the journal Radiochimica Acta, after a rigorous review process. The symposium was attended by approximately 380 researchers from India and abroad, highlighting the growing importance of nuclear and radiochemistry in India. [Extracted from the article]

The field of radiochemistry in the Republic of Korea has expanded greatly over the last three decades to meet the rapid growth of technological demands in various areas such as nuclear energy and nuclear technologies for human health and environmental protection. Major research activities, which were initially centered at the Korea Atomic Energy Research Institute (KAERI), have gradually spread to major universities and the commercial sector. In this review, progress and recent research trends in nuclear and radiochemistry in Korea are summarized. The main research outcomes achieved by KAERI scientists are highlighted, with emphasis on basic actinide chemistry in nuclear fuel cycles, the radioanalytical chemistry of various radionuclides from radioactive waste and the environment, and medical radionuclide production. In addition, recent efforts to promote radiochemical education and future perspectives are briefly outlined. [ABSTRACT FROM AUTHOR]

This document is a laudation for Prof. Dr. Elisabete A. De Nadai Fernandes, who has been awarded the 2024 Hevesy Medal for her achievements in applying metrological principles to neutron activation analysis and data mining techniques in the field of agronomy. Prof. Fernandes has made significant contributions to the development of nuclear analytical methods, particularly neutron activation analysis (NAA), for the determination of trace elements in various sample matrices. Her research projects have focused on human and environmental studies, including the Amazon forest, sugar cane agroindustry, uranium mining, and river and lacustrine pollution. She has also been recognized for her work in food authenticity and traceability, using statistical data mining techniques to distinguish organic food products from their fake counterparts. Prof. Fernandes has published numerous scientific papers and received several honors and awards for her contributions to the field. The Hevesy Medal and a Certificate were presented to her at a ceremony during the Sixteenth International Conference on Modern Trends in Activation Analysis (MTAA-16) in Budapest, Hungary. [Extracted from the article]

This document is a correction to an article titled "Radon emanation factor for soil and external exposure of the public around an atomic power plant narora (U.P.) India." The correction addresses a typesetting error in Tables 2 and 4, where the last three rows were shifted to the right-hand side. The corrected tables are provided in the document. The article discusses the activity concentrations of radionuclides and absorbed dose rates in various villages near the atomic power plant. It also presents the variation of annual effective dose, hazard indices, and radium equivalent activity. The corrected article can be found online. [Extracted from the article]

The document is a foreword for the Third International Conference on Radioanalytical and Nuclear Chemistry (RANC-2023) held in Budapest, Hungary in May 2023. The conference was a reunion for colleagues and friends in the field after the difficult years of the pandemic. The conference included various sessions on topics such as actinide analytical chemistry, nuclear forensics, and radioecology. The document also mentions the Hevesy Medal Award given to Melissa A. Denecke and the social programs included in the conference. Selected papers from the conference are collected in a special issue of the Journal of Radioanalytical and Nuclear Chemistry. The author expresses gratitude to the organizers and looks forward to the next conference in 2027. [Extracted from the article]

The 2022 International Conference on Nuclear Analytical Techniques (NAT2022) was held in Daejeon, Korea, in conjunction with the 8th Symposium on Radiation in Medicine, Space, and Power (RMSP-VIII) and the Symposium on Applications of Chemical and Analytical Technologies in the Nuclear Industry (Nu-ACT 2022). The conference was organized by the Korean Nuclear Society (KNS), the Korea Atomic Energy Research Institute (KAERI), and the Graduate School of Convergence Science and Technology at Seoul National University (SNU), with support from other organizations. The conference featured sessions on various topics related to nuclear analytical techniques and included presentations from distinguished speakers. The conference saw an increase in participation compared to its predecessor, NAT2020, indicating the growing interest in the field. A special issue of the Journal of Radioanalytical and Nuclear Chemistry (JRNC) will publish 22 papers from the conference. [Extracted from the article]

The generation of uranium-containing wastewater (UCW) during different stages of uranium mining, processing, and utilization presents a significant ecological and biospheric threat. Consequently, it is crucial for both sustainable development and the protection of human health to adopt appropriate methods for the treatment of UCW as well as the separation and enrichment of uranium. This study conducted a comprehensive search of the Web of Science Core Collection (WOSCC) database for publications related to UCW treatment between 1990 and 2022 to gain insight into current trends in the field. Subsequently, the annual publications, WOSCC categories, geographical distribution, major collaborations, prolific authors, influential journals, and highly cited publications were the subjects of a biliometric analysis that was subsequently carried out. The study findings indicate a significant rise in the overall number of publications in the research field between 1990 and 2022. China, India, and the USA emerged as the primary contributors in terms of publication count. The Chinese Academy of Sciences, the East China University of Technology, and the University of South China were identified as the key research institutions in this field. Furthermore, a majority of the publications in this field were distributed through prestigious journals with high impact factors, such as the Journal of Radioanalytical and Nuclear Chemistry. The top 3 journals were Radioanalytical and Nuclear Chemistry, Chemical Engineering Journal , and Journal of Hazardous Materials. The keyword co-occurrence and burst analysis revealed that the current research on UCW treatment mainly focuses on adsorption-based treatment methods, environmentally functional materials, uranium recovery, etc. Furthermore, the study of the adsorption efficiency of different adsorbent materials, as well as the strengthening and improvement of adsorbent material selectivity and capacity for the recovery of uranium, represents a research hotspot in the field of UCW treatment in the future. This study conducts a comprehensive overview of the current status and prospects of the UCW treatment, which can provide a valuable reference for gaining insights into the development trajectory of the UCW treatment. [Display omitted] • A bibliometric analysis of UCW treatment was conducted. • Visualization of bibliometric results using Bibliometix, VOSViewer, and Citespace. • The current treatment technologies applied in UCW treatment were summarized. • Research focused on adsorption, environment function material, uranium recovery, etc. • Increasing adsorbent selectivity, efficiency, and capacity is promising. [ABSTRACT FROM AUTHOR]

These recommendations are a vocabulary of basic radioanalytical terms which are relevant to radioanalysis, nuclear analysis and related techniques. Radioanalytical methods consider all nuclear-related techniques for the characterization of materials where 'characterization' refers to compositional (in terms of the identity and quantity of specified elements, nuclides, and their chemical species) and structural (in terms of location, dislocation, etc. of specified elements, nuclides, and their species) analyses, involving nuclear processes (nuclear reactions, nuclear radiations, etc.), nuclear techniques (reactors, accelerators, radiation detectors, etc.), and nuclear effects (hyperfine interactions, etc.). In the present compilation, basic radioanalytical terms are included which are relevant to radioanalysis, nuclear analysis and related techniques. [ABSTRACT FROM AUTHOR]

The Second International Conference on Radioanalytical and Nuclear Chemistry (RANC-2019) was held in Budapest, Hungary May 5-10, 2019. There were 11 plenary lectures, 42 invited talks, 166 contributed talks, and 142 posters presented, very similar to numbers 3 years ago. It was well received by the participants; however, we still need to learn this presentation technique and adjust the conditions for the actual needs. [Extracted from the article]

With the advocation of green analytical chemistry (GAC), the development of eco- and operator friendly analytical practices is highly concerned. This could be more noteworthy for the radioanalytical chemistry as hazardous radioactivity present during the analytical procedures. For the first time, herein we critically reviewed the practices and progresses of radioanalytical methodologies for typical nuclides from the perspective of GAC. Different stages of the general radioanalytical procedures were considered. On this basis, practices and progresses of the methodologies were dialectically discussed from two aspects, viz., the analytical performances and the analytical greenness. In the end, future trends of radioanalytical methodologies for different nuclides were proposed. Although in many cases the implementation of GAC might deteriorate the analytical performances, with the aid of multi-nuclide separation procedure as well as automatic techniques, it is promising to improve the analytical greenness meanwhile satisfy the analytical requirements for specific application purposes. • Radioanalytical methods of nuclides are originally reviewed from the GAC perspective. • A dilemma is to weigh analytical performances and greenness during method development. • Efforts were made to improve analytical greenness whilst satisfy application requirements. • Automated multiple nuclide separation with direct measurement is a promising trend. [ABSTRACT FROM AUTHOR]

Purple, green and light blue smooth lines are G1(x), G2(x) and G3(x) Under the section "Morphological peak searching", the value "231" in the sentence "channel addresses corresponding to each forward count peak by the search were 39, 231, 376, 465, 641, 715, and 772." should be read as "230". The value "231" in the sentence "Nuclides corresponding to the positive counting peaks of channels 231, 376, 465, 641, 715, and 772 are SP 131 sp I, SP 137 sp Cs, SP 54 sp Mn, SP 60 sp Co (1173 keV), SP 60 sp Co (1332.5 keV) and SP 40 sp K respectively." should be read as "230". Under the section "Nuclide activity calculation", the sentence "Compared with the nuclide activity via simulation experiment, the maximum activity calculation error is 3%." should be read as "Compared with the nuclide activity via simulation experiment, the maximum activity calculation error is within 3%.". Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. [Extracted from the article]

An automated extraction chromatographic system and its virtual instrument system based on LabVIEW platform have been developed and characterized to perform single column-based sequential radiochemical procedures. The developed system was characterized by its dead volume and memory effect pertinent to fluidic tubing, and the linearity of feeding pump speed. An automated sequential procedure was developed for the rapid and reproducible separation of strontium from calcium, barium and yttrium with strontium selective resin. [ABSTRACT FROM AUTHOR]

Because there are fewer tools available to probe the interactions therein, the effect of the fundamental chemistry of the organic diluent on solvent extraction equilibria has been under-characterized relative to the aqueous. As a result, diluents for solvent extraction are often selected for an application not for their utility as a medium for reaction, but for other (often equally) important reasons (like low flammability). To begin to improve this imbalance in the science, twenty different diluents have been used in a study of the extraction of radiotracer 152/154Eu3+ from dilute nitric acid solutions using the extractant 2-ethylhexylphosphonic acid mono-2-ethylhexyl ester (HEH[EHP]). To increase the utility of the study and to honor the memory of Professor Jan Rydberg, this investigation was conducted by a cadre of comparatively inexperienced separation scientists (who are as a result no longer inexperienced separation scientists) as a radioanalytical chemistry and solvent extraction educational exercise. Slope analysis was used to determine the apparent stoichiometry of the extracted metal complex. The results discussed in the following indicate that, while the pH dependence exhibits the expected three H+ exchanged per metal ion extracted, the extractant dependence suggests that the number of protonated extractant molecules in the extracted complex changes with the organic diluent. The experimentally observed "extractant dependency" ranges from 2.5 to 3.0 dimer equivalent molecules per extracted metal ion. Ironically, in the diluents exhibiting the highest apparent M:(HA)3 stoichiometry, HEH[EHP] extracts Eu3+ less efficiently. Europium luminescence spectroscopy was used to probe for changes in the first coordination sphere of the complex in different diluents. A model and conceptual framework for understanding these observations is described. [ABSTRACT FROM AUTHOR]

Two methods have been tested for separation of uranium and thorium from selenium using UTEVA and anion exchange resins. The average yield for separation of uranium, thorium and selenium was determined to be for the UTEVA method 91 ± 9%, 79 ± 8% and 96 ± 8%, respectively, and 96 ± 10%, 88 ± 9% and 94 ± 8%, respectively, in the case of the anion exchange resin. The methods will be used in consequent development of analytical procedures for determination of 238U and 232Th content with mass spectrometric techniques in 82Se source materials of the SuperNEMO experiment. [ABSTRACT FROM AUTHOR]

Trace metal toxicology research aimed at generating human-relevant information for risk assessment requires the use of sensitive and sophisticated analytical techniques to determine typically µg kg−1 or lower concentrations of trace metals in tissues, cells, intracellular components of laboratory animals and humans. The results of these techniques are needed for an understanding of the biochemical mechanisms and bio-transformations involving trace metals. In this context, radioanalytical and nuclear methods plays a pivotal role. In order to give an idea of typical results which can be obtained by radioanalytical and nuclear techniques when used in combination with biochemical and molecular biology techniques of cellular fractionation we report here some typical studies carried out by means of non-carrier added radiotracers with high specific activity, and neutron activation analysis (NAA). The investigations have been performed in the context of an integrated and complementary in vivo and in vitro approach that uses both animal and human test systems. Applications reported concern: (1) the in vivo work on laboratory animals (brain regional thallium distribution in rats and identification of thallium binders in testis, by means of 201+202Tl); (2) in vitro investigations on cells of animal origin (arsenic uptake and biomethylation in rat brain aggregates, neurons, microglia and astrocytes as well as speciation of vanadate in Balb/3T3 cells, by means of 73As and 48V, respectively); (3) in vitro experiments on cell of human origin (intracellular behavior of cadmium in human umbilical cord blood stem cells, by means of 109Cd); (4) analytical determinations of trace metals in tissues of general population and patients potentially affected by metal-related disease, by means of NAA. The analytical determinations carried out allowed to relate total element concentrations in cells to the results of investigations at the intracellular and molecular levels with the goal of identifying the biochemical components that interact with trace metals. These findings demonstrate the great potential of radioanalytical and nuclear techniques in the context of an integrated in vivo-in vitro strategy adopted in trace metal toxicology research for a mechanistically-based hazard characterization concerning the exposure to low doses of trace metals. [ABSTRACT FROM AUTHOR]

Analytical radiochemistry of neutron-activated samples, as practiced during past decades at the Jožef Stefan Institute Ljubljana, is outlined. The paper reviews achievements made in both elemental analysis and analyses of long-lived radionuclides, in variety of sample types. The presented analytical procedures include application of diverse chemical separations, multiple irradiations of samples, use of various nuclear reactions and detection modes for particular measurands, and determination of elements that are difficult to be determined by neutron activation analysis (NAA). Useful practical applications of neutron-activated tracers for chemical yield determinations, as unique feature of radiochemical NAA in comparison with non-nuclear analytical methods, are also addressed. [ABSTRACT FROM AUTHOR]

The physicochemical properties of fine fiber materials Eudragit® [amine-containing methylbutyl methacrylate copolymer Eudragit E (Ed-E) and quaternary salt dimethylaminoethyl methacrylate quaternary salt copolymer Eudragit RS (Ed-RS)] were studied in radionuclide adsorption and flocculation for radioanalytical applications. The ultrafine fibers of Eudragit® were prepared by electrospinning from Ed-E and Ed-RS solutions. Here, we report data on interactions of radionuclides, such as 233U, 239Pu, 241Am, 152,154Eu, 90Sr, and 90Y, with Ed-E and Ed-RS in 5 g/l sodium nitrate, sulfate, and carbonate solutions. The copolymer Ed-E was shown to be a scavenger of 233U, 239Pu, 241Am, and 152,154Eu in trace quantities. Flocculation experiments demonstrated that coprecipitation of Ed-E together with Am(III) and Eu(III) allows the separation of this pair in a 200 g/l NaNO3 solution. [ABSTRACT FROM AUTHOR]

Our Publicity Chair, Harry Miley, and assistants Jeremy Inglis and Johnathan Burnett, pulled together key support from sponsors. A. Chatt presented the award at the opening ceremony for the conference, and Dr. Pommé provided a stimulating overview of his career achievements in metrology. Finally, we would have been lost without Danielle Roybal, our Conference Executive, who brilliantly executed registration, answered the many attendee questions, and kept us on track with administering a successful conference. [Extracted from the article]

Prof. Hou was nominated by Prof. Dr. Jan Kucera (Nuclear Physics Institute, Czech Republic) and co-sponsored by Prof. Zhifang Chai (Institute of High Energy Physics, China) and Prof. Nóra Vajda (RADANAL td., Hungary). 1 From left to right: Prof. Amares Chatt, Prof. Xiaolin Hou, and Dr. Zsolt Révay 2 From left to right (year of the award): Prof. Zhifang Chai (2005), Prof. Jan Kucera (2006), Prof. Susanta Lahiri (2015), Prof. Xiaolin Hou (2019), Prof. Amares Chatt (2001), Prof. Pavel P. Povinec (2017), Prof. Rajmund S. Dybczy'nski (2013), and Prof. Syed M. Qaim (2008). [Extracted from the article]

Because of low signal-to-noise ratios, the main difficultly in real-world detection scenarios is distinguishing between benign sources and potentially-threatening radioactive materials. The variability in observed signal during a radiation detection search operation can be contributed to the stochastic nature of the underlying physics and the systematic errors inherent to the detection systems employed. This variability is compounded for dynamic detection scenarios, where objects, referred to as clutter, traverse through the primary detection scene, introducing potential suppressions in the observed signal due to the attenuation of background radiation. This study examines the impact that clutter, namely automobiles such as small utility vehicles, sedans, and trucks, produces on the observed signal in a 2 in. × 4 in. × 16 in. NaI(Tl) detector. The clutter is identified and tracked in the detection scene using a time-synced video camera and a 2-D light distance and ranging contextual sensors. Two experiments were performed on the Oak Ridge National Laboratory reservation: one using a distributed source within the scene to understand the systematics of detecting and analyzing the clutter, and the second experiment mimicking an urban environment with large buildings positioned on either side of a roadway. The experiments exhibited unique results in the amount of signal suppression and variability of the cluttered signal, both demonstrating an observable suppression from the clutter-free background. These results reveal a new potential category of signal noise intrinsic to real-world detection scenarios that should be considered when establishing detection thresholds based on expected values. [ABSTRACT FROM AUTHOR]