Article
Engineering, Civil
Allen June Buenavista, Chuan Wang, Yueqing Xie, Benjamin Gilfredder, Sven Frei, Pere Masque, Grzegorz Skrzypek, Shawan Dogramaci, James L. McCallum
Summary: Quantifying water flux between surface water and groundwater is crucial for water balance determination, surface water quality control, and sustainable allocation of water resources. By analyzing variations in 222Rn activity in sediments, water flow and residence times can be inferred. This study emphasizes the importance of accounting for upward flows in predicting groundwater exchange with surface water bodies.
JOURNAL OF HYDROLOGY
(2023)
Article
Water Resources
Hayley Wallace, E. J. Wexler, Spencer Malott, Clare E. Robinson
Summary: The study compared field measurements and model estimates of lacustrine groundwater discharge rates, emphasizing the importance of well-defined hydrogeological characteristics for regional scale model applications. Particle tracking analysis showed that groundwater discharge along different shoreline areas has varying potential to transport pollutants to the lake.
HYDROLOGICAL PROCESSES
(2021)
Article
Geosciences, Multidisciplinary
Dini Adyasari, Natasha T. Dimova, Henrietta Dulai, Benjamin S. Gilfedder, Ian Cartwright, Tristan McKenzie, Peter Fuleky
Summary: This review paper provides an overview of the measurement techniques of 222Rn and discusses its application in different hydrological environments. It addresses the primary uncertainties faced when applying 222Rn mass balances and provides approaches to minimize these uncertainties. Guidelines and open-source scripts are also provided to assist future studies in quantifying groundwater discharge to surface waters using 222Rn.
EARTH-SCIENCE REVIEWS
(2023)
Article
Geochemistry & Geophysics
Morgan Peel, Rolf Kipfer, Daniel Hunkeler, Philip Brunner
Summary: This study investigates the natural variability of 222Rn emanation rates in an instrumented alluvial aquifer and highlights the issues with assuming homogeneous 222Rn production in alluvial systems. The measurements reveal that 222Rn emanation rates are highest within the first few meters below the surface. These results have important implications for understanding 222Rn activities in groundwater, particularly in infiltration zones where hydraulic conditions can cause variations in 222Rn signatures.
Article
Oceanography
Lijun Song, Wen Liu, Shibin Zhao, Chunqian Li, Jinjia Guo, Natasha Dimova, Bochao Xu
Summary: A new method for measuring radon concentrations in various natural waters using a Pulsed Ionization Chamber (PIC) Radon Detector was developed. The method proved to be suitable for measuring radon levels and is cheaper and easier to operate compared to current grab sample methods.
ACTA OCEANOLOGICA SINICA
(2023)
Article
Geochemistry & Geophysics
Dylan J. Irvine, Matthew J. Currell, Harald Hofmann
Summary: Professor Ian Cartwright has made significant advancements in the field of earth sciences through his research and has made outstanding contributions to scientific knowledge and training. His research focuses on geochemistry, stable and radioactive isotope tracers, and their applications in understanding groundwater and surface water quality, palaeo-climates, and metamorphic processes.
APPLIED GEOCHEMISTRY
(2023)
Article
Environmental Sciences
Noha Imam, Nils Moosdorf, Till Oehler, Afaf Nada
Summary: Radon mass balances in lakes can be used to trace transport processes along the sediment-water interface, such as groundwater discharge or pore water exchange. A significant surplus of Rn-222 in Lake Burullus, Egypt, suggests additional transport pathways, potentially from groundwater discharge and pore water exchange. Further investigation is needed to understand the impact on water budgets and biogeochemical cycles of the lake.
JOURNAL OF ENVIRONMENTAL RADIOACTIVITY
(2021)
Article
Environmental Sciences
Danielle K. Hare, Susanne A. Benz, Barret L. Kurylyk, Zachary C. Johnson, Neil C. Terry, Ashley M. Helton
Summary: This study presents a web tool application called PASTA that analyzes paired air and stream temperature signals, using publicly available stream temperature data and large-scale climate observations, to evaluate spatiotemporal patterns in stream thermal sensitivity and relative groundwater influence. The tool fits sinusoidal curves of daily stream and air temperatures to indicate groundwater influence characteristics and performs linear regressions for stream versus air temperatures to indicate stream thermal sensitivity.
WATER RESOURCES RESEARCH
(2023)
Article
Environmental Sciences
Connaugh M. Fallon, William R. Bower, Brian A. Powell, Francis R. Livens, Ian C. Lyon, Alana E. McNulty, Kathryn Peruski, J. Frederick W. Mosselmans, Daniel Kaplan, Daniel Grolimund, Peter Warnicke, Dario Ferreira-Sanchez, Marja Siitari Kauppi, Gianni F. Vettese, Samuel Shaw, Katherine Morris, Gareth T. W. Law
Summary: Uranium dioxide (UO2) and metaschoepite (UO3 center dot nH(2)O) particles were studied under dynamic conditions representative of a contaminated site. The study revealed the oxidative dissolution and migration of UO2 over 1-2 cm in the direction of waterflow and against it. Metaschoepite particles also showed significant dissolution with marginal U migration. However, in both particle systems, the released U was retained in sediment as different U(IV) and U(VI) phases and no U was detected in the effluent.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Chuan Wang, Yueqing Xie, Shaoda Liu, James L. McCallum, Qing Li, Jichun Wu
Summary: The study reveals that groundwater discharge rates are highly variable in headwater streams, with terrestrial CO2 input contributing more to the stream than internal metabolism. However, most terrestrially derived CO2 is transformed into HCO3- through carbonate buffering after entering the stream, inhibiting stream CO2 evasion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Ayelet Benkovitz, Hovav Zafrir, Yuval Reuveni
Summary: Currently, Rn subsurface flow is only described by diffusion and advection transportation models within porous media that exist. The impact of surface heating is not considered in existing gas flow models within geological porous media, even though temperature is an important driving force in climate and gas thermodynamics. This study demonstrates that heating the ground surface by the sun creates a downward temperature gradient that influences the flow of Rn gas in porous media, showing a daily periodicity with time delay depending on depth. The relationship between Rn and surface temperature is found to be non-linear and can be best described by an exponential dependency. With this model, it is now possible to predict and extract the temporal variation of Rn at shallow depths using surface-measured parameters.
Article
Engineering, Environmental
Anke Uhl, Hans Juergen Hahn, Anne Jaeger, Teresa Luftensteiner, Tobias Siemensmeyer, Petra Doell, Markus Noack, Klaus Schwenk, Sven Berkhoff, Markus Weiler, Clemens Karwautz, Christian Griebler
Summary: Climate change is causing a decrease in groundwater recharge in some regions while the demand for groundwater for drinking and irrigation purposes is increasing, leading to declining groundwater tables and reduced surface water levels in rivers. This reversal of groundwater-surface water interactions is resulting in drying rivers, impacts on lotic ecosystems, and an increase in contaminants in groundwater. Unpredictability of current models and limited scientific evidence on tipping points for groundwater-surface water interactions have hindered public and political awareness, delaying the implementation of necessary management measures.
Article
Geosciences, Multidisciplinary
Nikolas Benavides Hoglund, Charlotte Sparrenbom, Rui Hugman
Summary: Polluted groundwater discharge from a contaminated site in Hagfors, Sweden is affecting a nearby sparsely populated stream. To address the difficulties in remediating the source zone, decision makers have changed the site management objective to mitigating the discharge. A groundwater numerical decision-support model was developed to help formulate targeted remediation strategies. The model incorporates historical data and measurements of surface water chemistry to estimate the flux and distribution of contaminated groundwater discharge.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Engineering, Civil
J. Crawford, C. E. Hughes, S. D. Chambers
Summary: This study compares daily and weekly stable isotopic data of rainfall collected in Lucas Heights, Australia over a 9-year and 14-year period, respectively. The differences between local meteoric water lines (LMWLs) developed from daily, weekly, or monthly data were small. However, when a precipitation weighted least squares method was used, the differences between daily and weekly derived LMWLs were lower. The isotopic composition of precipitation is influenced by environmental conditions, synoptic weather systems, and large-scale climate drivers.
JOURNAL OF HYDROLOGY
(2023)
Article
Environmental Sciences
Xiaoliang Sun, Yao Du, Yamin Deng, Hongchen Fan, Zihao Zhou, Yiqun Gan, Teng Ma, Yanxin Wang
Summary: This study quantitatively estimates the spatial patterns of lacustrine groundwater discharge (LGD) in an oxbow lake in the central Yangtze River Basins using a segmented application of the Rn-222 mass balance model. The results show that LGD rates vary greatly across different locations, with high discharge rates observed not only in the lakeshore area but also in the lake center. Sensitivity analysis reveals that lake water Rn-222 concentration, groundwater concentration, wind speed, and water depth are important parameters influencing the quantitative results of LGD.
WATER RESOURCES RESEARCH
(2022)
Article
Geography, Physical
Raphael Gromig, Elodie Lebas, Larisa Savelieva, Zina Pushina, Grigory Fedorov, Dominik Brill, Marlene Margit Lenz, Sebastian Krastel, Bernd Wagner, Nataliya Kostromina, Mark Mustafin, Martin Melles
Summary: The study of Lake Taymyr in the central Russian Arctic revealed two lowstands and two highstands of the lake level, with the current level about 5 meters above sea level during summer. An ice sheet was confirmed to have blocked the drainage of Lake Taymyr during the latest Weichselian. Data indicate that the evolution of Lake Taymyr involved a complex interplay of regional climatic, glacial, and sea-level changes.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Matthias Lenz, Elodie Lebas, Marlene M. Lenz, Grigory Fedorov, Raphael Gromig, Vasili Kolka, Sebastian Krastel, Niklas Leicher, Martin Melles, Bernd Wagner
Summary: The study on Lake Imandra in the Kola Peninsula reveals the dynamics of sediment deposition and the potential influences of complex current systems. The complex morphology of the lacustrine basin favored sediment accumulation in depressions, while strong wind-induced surficial currents and compensatory subsurface currents prevented sediment accumulation.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Matthias Lenz, Marlene M. Lenz, Andrei Andreev, Stephanie Scheidt, Raphael Gromig, Elodie Lebas, Grigory Fedorov, Sebastian Krastel, Martin Melles, Bernd Wagner
Summary: The analysis of core Co1401 from Lake Levinson-Lessing provides insights into the environmental and climatic history of the Taymyr Peninsula over the past 62 kyr. The data indicates stable environmental conditions with subtle changes between different Marine Isotope Stages, influenced by precipitation patterns and large ice sheets outside of the peninsula. MIS 1 is associated with warmer and wetter conditions and short-term climate fluctuations influenced by North Atlantic air masses.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Wenwei Zhao, Andrei A. Andreev, Volker Wennrich, Quan Li, Martin Melles
Summary: The sedimentary record of Lake El'gygytgyn provides important insights into the response of Arctic ecosystems to Quaternary climate variations. Through pollen analysis and biome reconstructions, this study reveals the dominance of herb tundra during glacials/stadials and the expansion of shrub communities during interglacials. Forest biomes in the region were influenced by changes in obliquity values and stepwise cooling and drying since the Mid-Pleistocene Transition (MPT).
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Marlene M. Lenz, Andrei Andreev, Larisa Nazarova, Liudmila S. Syrykh, Stephanie Scheidt, Haflidi Haflidason, Hanno Meyer, Dominik Brill, Bernd Wagner, Raphael Gromig, Matthias Lenz, Christian Rolf, Gerhard Kuhn, Grigoriy Fedorov, John Inge Svendsen, Martin Melles
Summary: The study in the polar Urals revealed that glaciers occupied the catchment of Lake Bolshoye Shchuchye during the cold and dry MIS 2, completely disappearing during the Bolling-Allerod. The local vegetation transitioned from open, herb and grass-dominated tundra-steppe to potentially moister conditions, with summer air temperatures becoming similar to today during the Bolling-Allerod period.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
Andrei A. Andreev, Larisa B. Nazarova, Marlene M. Lenz, Thomas Boehmer, Ludmila Syrykh, Bernd Wagner, Martin Melles, Ludmila A. Pestryakova, Ulrike Herzschuh
Summary: Continuous pollen and chironomid records from Lake Emanda provide insights into the Late Quaternary environmental history of the Yana Highlands. The research reveals changes in vegetation and temperature during different periods, including the dominance of larch forests, the transition to treeless landscapes, and the recovery of vegetation during the Holocene. The study also highlights the development of richer hydrobiological communities in response to the Holocene thermal maximum.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Geography, Physical
M. A. R. T. I. N. MELLES, J. O. H. N. I. N. G. E. SVENDSEN, G. R. I. G. O. R. Y. FEDOROV, J. U. L. I. E. BRIGHAM-GRETTE, B. E. R. N. D. WAGNER
Summary: Lake sediment records in northern high latitudes provide important insights into Quaternary environmental and climatic history. The selection and interpretation of coring sites can be greatly improved through bathymetric and seismic surveys. New coring techniques have expanded the records in length and time. Analytical work on the cores has benefited from improved non-destructive logging and scanning techniques, the development of new proxies, and advancements in quantitative climate reconstructions.
JOURNAL OF QUATERNARY SCIENCE
(2022)
Article
Biology
Luise Schulte, Stefano Meucci, Kathleen R. Stoof-Leichsenring, Tony Heitkam, Nicola Schmidt, Barbara von Hippel, Andrei A. Andreev, Bernhard Diekmann, Boris K. Biskaborn, Bernd Wagner, Martin Melles, Lyudmila A. Pestryakova, Inger G. Alsos, Charlotte Clarke, Konstantin Krutovsky, Ulrike Herzschuh
Summary: This study investigates the distributional shifts of boreal larch species using ancient sedimentary DNA analysis. The results demonstrate that climate is a significant determinant of larch species distribution.
COMMUNICATIONS BIOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Raphael Gromig, Patrick Grunert, Stephanie Scheidt, Martin Melles
Summary: This study provides a detailed analysis of the sedimentary evolution in the eastern Kara Sea west of the entrance to the Vilkitsky Strait. The results show four sedimentation phases that are closely related to sea-level rise and input from the Yenisei and Taymyr Rivers.
Article
Geography, Physical
Barbara von Hippel, Kathleen R. Stoof-Leichsenring, Luise Schulte, Peter Seeber, Laura S. Epp, Boris K. Biskaborn, Bernhard Diekmann, Martin Melles, Luidmila Pestryakova, Ulrike Herzschuh
Summary: This study investigates the co-occurrence of plants and fungi in Siberia and how it is shaped by long-term climatic changes. The analysis of sedimentary ancient DNA reveals that past warming has led to an increase in mycorrhizae, lichens, and parasites associated with woody taxa, while yeast and saprotroph distribution declined. Future warming is expected to cause feedbacks between fungal composition and plant diversity changes.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Environmental Sciences
S. Berg, L. Emmerson, C. Heim, E. Buchta, T. Fromm, B. Glaser, W. -d. Hermichen, J. Rethemeyer, C. Southwell, U. Wand, M. Zech, M. Melles
Summary: Snow petrels in the Antarctic region produce stomach oil for feeding and also leave it around the nests, forming deposits known as Antarctic mumiyo. These deposits provide insights into the paleo-ecological diet of snow petrels and serve as archives of past marine environmental conditions. By analyzing modern stomach oils and fossil deposits, researchers have found consistency in the composition, allowing inference of changes in snow petrel diet. Regional and temporal differences in the composition of snow petrel diet suggest varying environmental conditions. This study validates methods for paleo-studies and assesses changes and variability in snow petrel diet.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2023)
Article
Geography, Physical
H. Nienhaus, P. Yogeshwar, W. Morbe, B. Tezkan, C. Buettner, M. Legler, S. Buske, B. Lushetile, V. Wennrich, M. Melles
Summary: This study investigates the sedimentary record in the Aurus clay pan in the southern Namib Desert for long-term paleoclimate research. Geophysical surveys and sedimentological investigations were conducted to understand the subsurface structure and sediment composition. The findings suggest a relatively humid Holocene period and a drier late Pleistocene period. Compared to similar studies in the Atacama Desert, the sediment record in Aurus is longer but provides limited information on sediment composition.
GLOBAL AND PLANETARY CHANGE
(2023)
Article
Geosciences, Multidisciplinary
D. O. Sadokov, T. V. Sapelko, N. Yu. Bobrov, M. Melles, G. B. Fedorov
Summary: This study focuses on the Late Pleistocene palaeogeography of the northern Mologa-Sheksna Lowland (MSL), based on the analysis of Lake Beloye sediments. By reconstructing the palaeoclimatic changes using various dating methods and analysis techniques, the research reveals the climatic dynamics during the Late Glacial and Pleistocene/Holocene transition in the region. The study also highlights the importance of lacustrine deposits as valuable palaeoarchives.
VESTNIK OF SAINT PETERSBURG UNIVERSITY EARTH SCIENCES
(2022)
Meeting Abstract
Public, Environmental & Occupational Health
Nina Zipfel, Marije Hagendijk, Ersen Colkesen, Philip van der Wees, Carel Hulshof, Marije Melles, Sylvia van der Burg-Vermeulen
SAFETY AND HEALTH AT WORK
(2022)
Article
Geography, Physical
Marlene M. Baumer, Bernd Wagner, Hanno Meyer, Niklas Leicher, Matthias Lenz, Grigory Fedorov, Luidmila A. Pestryakova, Martin Melles
Summary: The sediment succession of Lake Emanda in the Yana Highlands was examined to reconstruct the regional late Quaternary climate and environmental history. The study suggests that the climate at Lake Emanda was predominantly controlled by changes in summer insolation, global sea level, and the extent of ice sheets over Eurasia. The results indicate unstable climatic and environmental conditions have persisted in the region since around 5,000 years ago.
Article
Chemistry, Inorganic & Nuclear
R. Galea, K. Moore
Summary: In this study, the solution of 225Ac was standardized using the TDCR method. The counting efficiencies were calculated to be approximately 500% for the NRC TDCR system. The relative uncertainty for the activity concentration was determined to be 0.25%. The measured half-life of 225Ac was found to be consistent with previous measurements.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
N. C. Ramirez, S. M. Collins
Summary: In this paper, the authors determined the half-life of 68Ga using ionisation chambers measurements and HPGe gamma-ray spectrometry. They reviewed the current literature and identified possible causes of inconsistency within the dataset. The findings suggest that addressing these issues could lead to a significant improvement in future evaluations of the half-life.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
C. P. Mano, C. Chapelle, Der Mesrobian Kabakian, H. Paradis, O. Delaune, L. Patryl
Summary: CEA/DAM is developing new beta-gamma measurement systems to enhance the reliability of the Comprehensive Nuclear Test Ban Treaty's verification regime. A new spectral unmixing algorithm for full-spectrum analysis was tested to improve analysis methods for nuclear activities with low statistics.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Junyoung Lee, Geunsub Kim, Hyegang Chang, Sangmin Lee, Sung-Joon Ye
Summary: The study applied the convolution/superposition method to calculate the dose distribution of boron neutron capture therapy and compared it with the Monte Carlo method. The results showed that the C/S method has a fast calculation speed and reasonable accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Victor H. Elvira, Marie-Christine Lepy, Yves Menesguen, Stephanie Melhem
Summary: In this study, a cryogenic electrical-substitution radiometer was utilized for the primary calibration of monochromatic photon beams at a synchrotron facility, in order to determine the intrinsic efficiency and dead layer thickness of an HPGe detector. This calibration method allowed for the calculation of efficiency up to 55 keV, where the active thickness of the detector is not a determining factor. Geometrical efficiency was also determined through measurements of a radioactive source at various distances.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Ali Pashazadeh, Hamid Reza Baghani, Mostafa Robatjazi, Prajit Kadavil
Summary: This study investigated the effect of patch source geometric parameters on the depth dose distribution in skin tissue through Monte Carlo simulation. The results showed that increasing the source-to-skin distance, patch thickness, and patch diameter will reduce the depth dose distribution, with the source-to-skin distance having the most significant impact on dose gradient.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Yueli Song, Fengqun Zhou, Yajuan Hao, Xiaopeng Zhang, Pengfei Ji, Yong Li
Summary: In this study, the cross section values of the 109Ag(n,2n)108mAg reaction at different neutron energies were measured using the activation technique and off-line gamma-ray spectrometry. The results were compared with experimental data, evaluated data from libraries, and theoretical values to validate their accuracy.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhongkai Fan, Tao Hu, Xiangming Cai, Ruomei Xie, Haoxuan Li, Fengdi Qin, Shoukang Qiu, Yanliang Tan, Jian Shan
Summary: The high-precision measurement of Rn-220 is crucial for assessing and preventing thoron radiological hazards. By adding a ZnS(Ag)-coated clapboard, the issue of reduced Rn-220 concentrations due to decreased air pressure can be addressed, leading to improved detection efficiency. Experimental and simulation results provide valuable references for establishing the Rn-220 calibration factor.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
R. Han, Z. Chen, Y. Nie, B. Liu, G. Tian, X. Zhang, F. Shi, H. Sun, Z. Zhang, Y. Ding, X. Ruan, J. Ren, S. Zhang
Summary: The leakage neutron spectra of Lead samples were measured using a TOF technique, and MCNP simulations with different nuclear data libraries showed that JENDL-5.0 and JEFF-3.3 libraries have better agreement with experimental data. Differences in spectra mainly stem from variations in neutron reaction channels across the libraries, with ENDF/B-VIII.0 and CENDL-3.2 libraries being overestimated in certain energy ranges.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Nissren Tamam, Maryam Al Huwayz, Z. A. Alrowaili, Norah Alwadai, Khadijah Mohammedsaleh Katubi, Mohammed S. Alqahtani, I. O. Olarinoye, M. S. Al-Buriahi
Summary: This study investigates the radiation shielding properties and radiation protection applications of borotellurite glasses. The results show that the addition of TeO2 can enhance the glass's ability to absorb photons and fast neutrons, and effectively suppress photon buildup. These glasses also exhibit exceptional gamma radiation and fast neutron moderating abilities, making them suitable for designing lead-free, transparent, and efficient radiation protection structures.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
S. Chasapoglou, M. Kokkoris, R. Vlastou, M. Diakaki, V. Michalopoulou, A. Kalamara, G. Gkatis, A. Stamatopoulos, M. Axiotis, S. Harissopulos, A. Lagoyannis, M. I. Savva, T. Vasilopoulou, C. Lederer-Woods, N. Patronis, K. Kaperoni
Summary: This study investigated the accuracy and limitations of theoretical corrections in neutron-induced reactions on isotopically enriched Ge targets. Experimental cross-section measurements were conducted on several reactions using Ge-nat and isotopically enriched Ge targets. The results showed that the methodology using isotopically enriched targets provided accurate results without the need for theoretical corrections.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
P. G. Konstantinidis, G. S. Polymeris, E. Tsoutsoumanos, G. Kitis
Summary: This study investigates an altered version of an existing protocol to study the mechanisms and phenomena of stimulated luminescence. The protocol allows for the examination of recombination mechanisms and trapping parameters of the traps, as well as the observation of potential transitions between two different states.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
Quanzhi Yu
Summary: This study obtained the broad neutron spectrum of the Atmospheric Neutron Irradiation Spectrometer (ANIS) through Monte Carlo simulation and provided an analytic expression. By calculating the Single Error Rate (SER) and ratio, the reliability of the ANIS neutron spectrum was evaluated.
APPLIED RADIATION AND ISOTOPES
(2024)
Article
Chemistry, Inorganic & Nuclear
D. Glavic Cindro, M. Korun, T. Petrovic, B. Vodenik, B. Zorko
Summary: In gamma-ray spectrometric measurements, the decision threshold is determined by the observed value of the measurand. However, this dependence restricts its application to measurements with non-expressive indications. To address this issue, a recalculation of the decision thresholds based on the peak widths corresponding to expressive indications is proposed.
APPLIED RADIATION AND ISOTOPES
(2024)
