Radiochemistry最新文献_第2页

Mechanism of Radionuclide Transfer from Contaminated Water Bodies to Bat Habitats 放射性核素从污染水体向蝙蝠栖息地转移的机制

IF 0.9

Radiochemistry Pub Date : 2026-09-15 DOI: 10.1134/S1066362226040144

K. Yu. Mokrov, Yu. G. Mokrov

{"title":"Mechanism of Radionuclide Transfer from Contaminated Water Bodies to Bat Habitats","authors":"K. Yu. Mokrov, Yu. G. Mokrov","doi":"10.1134/S1066362226040144","DOIUrl":"10.1134/S1066362226040144","url":null,"abstract":"The mechanism of the radionuclide (microelement) transfer from contaminated water bodies to bat habitats was suggested and substantiated for the following chains of natural processes: formation of an aqueous aerosol (AA) cloud over the water body surface by the bubble mechanism, fractionation of microelements in AA from the water surface microlayer, wind transfer of the AA cloud to tens of kilometers beyond the water surface, adsorption of microelements from AA onto wings and body surface of flying insects and bats, ingestion of insects by bats, radionuclide supply to the bath stomach through daily grooming of the fur contaminated in the course of hunting insects, and deposition (accumulation) of bat guano in habitats. The model was substantiated using the data of 1993–2011 on the content of 137Cs, 90Sr, and α-emitting plutonium isotopes (ƩPu) in the guano and bodies of bats that lived in attics of buildings located at distances of up to 20–30 km from the primary source of the radioactive contamination of the atmosphere, Lake Karachay (liquid radioactive waste repository). A simplified model of human metabolism was used for qualitative estimation of age-dependent changes in the 90Sr and 137Cs uptake and clearance in bats; it allows rational explanation of all the experimental data. By analogy with the aqueous medium, the 90Sr accumulation factor in the dragonfly body (KA), defined as the ratio of the 90Sr specific activity in the dragonfly body to that in air, was estimated. Its value (1 × 1011) takes into account the diversity of factors governing the radionuclide transfer from the atmosphere into the dragonfly body (oral intake, adsorption on wing and body surfaces, etc.).","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 4","pages":"570 - 581"},"PeriodicalIF":0.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erratum to: Technetium Carbonyl Compounds in Chemistry and Nuclear Medicine: Recent Advances 《化学和核医学中的锝羰基化合物：最新进展》勘误

IF 0.9

Radiochemistry Pub Date : 2026-09-15 DOI: 10.1134/S1066362226040156

G. V. Sidorenko, M. Yu. Tyupina

引用次数: 0

Technetium(I) Tricarbonyl Complexes with a Combination of Bidentate NN Heterocyclic Diimines [NN = 2,2'-Bipyridine (bipy) or 1,10-Phenanthroline (phen)] and Guanine (Gua) 双齿NN杂环二亚胺[NN = 2,2′-联吡啶（bipy）或1,10-菲罗啉（phen）]与鸟嘌呤（Gua）结合的锝(I)三羰基配合物

IF 0.9

Radiochemistry Pub Date : 2026-09-15 DOI: 10.1134/S1066362226040028

A. E. Miroslavov, M. Yu. Tyupina, A. P. Sakhonenkova, V. V. Gurzhiy, A. R. Kochergina

{"title":"Technetium(I) Tricarbonyl Complexes with a Combination of Bidentate NN Heterocyclic Diimines [NN = 2,2'-Bipyridine (bipy) or 1,10-Phenanthroline (phen)] and Guanine (Gua)","authors":"A. E. Miroslavov, M. Yu. Tyupina, A. P. Sakhonenkova, V. V. Gurzhiy, A. R. Kochergina","doi":"10.1134/S1066362226040028","DOIUrl":"10.1134/S1066362226040028","url":null,"abstract":"The possibility of the formation of 2+1 technetium-99 tricarbonyl complexes [99Tc(CO)3(NN)(Guа)]+ (NN = 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen)) with a guanine molecule (Guа) was examined. With the bipyridine ligand, a dimeric product [(99Tc(CO)3(bipy))2(Gua–H)]ClO4 in which two [99Tc(CO)3(bipy)]+ fragments are linked by the guanine anion was obtained. The dimeric complex was characterized by IR and 99Tc NMR spectroscopy and by single crystal X-ray diffraction. The complex [99Tc(CO)3(phen)(EtOH,H2O)]ClO4 appeared to be inert toward replacement of the ethanol/water ligand by the guanine molecule, and the complex [99Tc(CO)3(phen)(Guа)]ClO4 was not obtained. The crystallization of [99Tc(CO)3(phen)(EtOH,H2O)]ClO4 yielded the complex [99Tc(CO)3(phen)(H2O)]ClO4·phen; its structure was determined by single crystal X-ray diffraction.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 4","pages":"463 - 469"},"PeriodicalIF":0.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recovery of Cobalt Ions and 60Co Radionuclide from EDTA-Containing Aqueous Solutions 从含edta水溶液中回收钴离子和60Co放射性核素

IF 0.9

Radiochemistry Pub Date : 2026-09-15 DOI: 10.1134/S1066362226040077

V. V. Milyutin, A. F. Seliverstov, N. A. Nekrasova, A. M. Petrov, R. I. Korneykov

引用次数: 0

Influence of the Chemical Composition of Diesel Fuel on Its Radiation Resistance 柴油化学成分对其抗辐射性的影响

IF 0.9

Radiochemistry Pub Date : 2026-09-15 DOI: 10.1134/S1066362226040107

L. Yu. Jabbarova, A. S. Mirzayeva, A. G. Akhmedova, I. I. Mustafayev

{"title":"Influence of the Chemical Composition of Diesel Fuel on Its Radiation Resistance","authors":"L. Yu. Jabbarova, A. S. Mirzayeva, A. G. Akhmedova, I. I. Mustafayev","doi":"10.1134/S1066362226040107","DOIUrl":"10.1134/S1066362226040107","url":null,"abstract":"The operational properties of diesel fuel under static conditions were investigated before and after prolonged gamma irradiation in order to study post-irradiation polymerization processes. The experiments were carried out using neat diesel fuel and diesel fuel modified with a small amount of naphthalene to enhance its radiation resistance. Irradiation was performed at room temperature using a 60Co gamma source with the dose rate P = 0.6 Gy s–1 over the absorbed dose range D = 21–51 kGy. The density and viscosity of the diesel fuel were determined before and after irradiation. The flash point was measured using the Cleveland open cup method (CLA 5). The cetane number and other fuel properties were determined using a Zeltex ZX-440 XL analyzer. The chemical composition of the samples was analyzed by gas chromatography–mass spectrometry (GC–MS) using a Gerstel AGT GC/MS system. A kinetic study of post-irradiation polymerization reactions occurring after the cessation of irradiation has shown that both the rate of these processes and their contribution to the overall extent of polymerization are governed by the irradiation time, concentration of the initial components, and absorbed dose. The introduction of specialized additives (antirads) makes it possible to optimize the composition of diesel fuel, thereby enhancing its resistance to ionizing radiation. The objective of this study was to determine the optimal diesel fuel composition through modification with additives capable of improving its resistance to ionizing radiation.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 4","pages":"532 - 541"},"PeriodicalIF":0.9,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148965332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Estimation of the Redox Potential of Photoexcited Uranyl Ion 光激发铀酰离子氧化还原电位的估计

IF 0.9

Radiochemistry Pub Date : 2026-07-17 DOI: 10.1134/S1066362226030045

V. P. Shilov, E. V. Abkhalimov, A. M. Fedoseev

引用次数: 0

Thermodynamic Parameters of Cesium and Strontium Sorption onto a Diabase Sample from the Yeniseisky Site 叶尼泽斯基遗址辉绿岩样品中铯和锶吸附的热力学参数

IF 0.9

Radiochemistry Pub Date : 2026-07-17 DOI: 10.1134/S1066362226030094

E. Yu. Khvorostinin, A. A. Rodionova, S. A. Fimina, V. O. Yapaskurt, S. E. Vinokurov

引用次数: 0

Radiometric Assessment and Radiological Hazard Evaluation of Soil around the Mymensingh 210 MW Combined Cycle Power Plant, Bangladesh 孟加拉国Mymensingh 210兆瓦联合循环发电厂周围土壤的辐射评估和辐射危害评估

IF 0.9

Radiochemistry Pub Date : 2026-07-17 DOI: 10.1134/S106636222603015X

M. M. M. Siraz, Md. A. R. Ananda, S. K. Das, F. Alam, M. S. Alam, A. Mahmud, M. B. Rashid, M. U. Khandaker, H. Osman, S. Yeasmin

{"title":"Radiometric Assessment and Radiological Hazard Evaluation of Soil around the Mymensingh 210 MW Combined Cycle Power Plant, Bangladesh","authors":"M. M. M. Siraz, Md. A. R. Ananda, S. K. Das, F. Alam, M. S. Alam, A. Mahmud, M. B. Rashid, M. U. Khandaker, H. Osman, S. Yeasmin","doi":"10.1134/S106636222603015X","DOIUrl":"10.1134/S106636222603015X","url":null,"abstract":"This study explores the distribution and radiological impact of transporting naturally occurring radioactive materials (NORMs) in soils collected from the vicinity of the Mymensingh 210 MW Combined (heavy fuel oil/gas) Cycle Power Plant in Bangladesh. Twenty-five soil samples were systematically collected at radial distances of 250, 500, and 1000 m from the power plant to assess the spatial variation in radioactivity levels. The measured activity concentrations of 226Ra, 232Th, and 40K ranged from 18 ± 1 to 34  ±  3, from 23 ± 2 to 60 ± 5, and from 340 ± 29 to 550 ± 35 Bq/kg, respectively. Although the 226Ra level did not exceed global average values, high levels of 232Th and 40K, exceeding world average values, were revealed. Contrary to expectations of a gradual decrease in the radionuclide concentrations with increasing distance from the power station, their levels actually varied nonmonotonically. The results obtained can be explained by high variability of geological background conditions, mobility of radionuclides, and human impact on the environment. While radium equivalent activity and general hazard index were within international safety standards, some samples exceeded these values, which could lead to a potential threat to public health. Multivariate statistics analysis showed that 226Ra and 232Th were the main factors causing radiological hazard in the research area, whereas 40K showed completely different behavior and formed a special cluster due to the presence of other geochemical processes related to its formation.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 3","pages":"416 - 429"},"PeriodicalIF":0.9,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sorption Properties of Rocks as a Potential Component for Backfill of High-Level Waste Underground Repository 高放废物地下储存库潜在回填组分岩石的吸附特性

IF 0.9

Radiochemistry Pub Date : 2026-07-17 DOI: 10.1134/S1066362226030021

S. V. Yudintsev

{"title":"Sorption Properties of Rocks as a Potential Component for Backfill of High-Level Waste Underground Repository","authors":"S. V. Yudintsev","doi":"10.1134/S1066362226030021","DOIUrl":"10.1134/S1066362226030021","url":null,"abstract":"High-level nuclear waste containing long-lived radionuclides must be reliably contained in a deep underground storage facility. Its safety will be ensured by a system of artificial engineered barriers and the surrounding geological environment. Backfill is one of the least studied barriers, and it is often considered in conjunction with a bentonite buffer. However, it has its own tasks: fixing the position of the buffer and waste container, stabilizing tunnels and galleries, decreasing their permeability and thermal conductivity, maintaining groundwater Eh and pH to reduce the solubility and enhance the sorption of radionuclides, and preventing their migration as colloids on bentonite particles derived from the buffer erosion. Clays, bentonite, zeolites, cement, and a mixture of bentonite and crushed rock were proposed previously as potential backfill materials. One of the requirements to the backfill is its compatibility with the geological environment, which is met by the crushed rocks around the repository. High sorption properties of such rocks for radionuclides significantly reduce the radionuclide washout by water from the repository into the biosphere.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 3","pages":"297 - 309"},"PeriodicalIF":0.9,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Treatment of Decontamination Solutions for VVER-1200 Reactors to Remove Radionuclides VVER-1200反应堆去污液去除放射性核素的处理

IF 0.9

Radiochemistry Pub Date : 2026-07-17 DOI: 10.1134/S1066362226030100

A. E. Savkin, Yu. T. Slastennikov, E. E. Ostashkina

{"title":"Treatment of Decontamination Solutions for VVER-1200 Reactors to Remove Radionuclides","authors":"A. E. Savkin, Yu. T. Slastennikov, E. E. Ostashkina","doi":"10.1134/S1066362226030100","DOIUrl":"10.1134/S1066362226030100","url":null,"abstract":"A process was developed for the treatment of decontamination solutions (DSs) from nuclear power plants (NPPs) equipped with VVER-1200 reactors, Novovoronezh NPP-2 (NVNPP-2) and Leningrad NPP-2 (LNPP-2), to remove the main radionuclides using sorption, precipitation, destructive, and membrane methods. The NVNPP-2 DS contains such radionuclides as 124,125Sb, 137,134Cs, 60Co, 54Mn, etc. The specific activity of the major radionuclides, 125Sb, 60Co, and 54Mn, is n × 103 Bq/dm3, рН is 2–12, and the concentration of salts is 5–12 g/dm3 (major components: sodium nitrate, oxalates, and carbonates). In LNPP-2 DS, the major radionuclide is 110mAg (1.6 × 105 Bq/dm3). The suggested flowsheet for the decontamination of NVNPP-2 and LNPP-2 DSs to remove radionuclides involves pH adjustment, filtration to separate the precipitate, ozonation, filtration, repeated pH adjustment, and sorption onto T-35. The resulting filtrate after the evaporation to dry salts has the total specific α-activity of <120 Bq/kg and the β-activity of 1000–10000 Bq/kg, mainly due to the presence of natural 40K.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"68 3","pages":"367 - 373"},"PeriodicalIF":0.9,"publicationDate":"2026-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148459184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0