A major impediment towards a better understanding of the complex plasma-surface interaction is the limited diagnostic access to the material surface while it is undergoing plasma exposure. The Dynamics of ION Implantation and Sputtering Of Surfaces (DIONISOS) experiment overcomes this limitation by uniquely combining powerful, non-perturbing ion beam analysis techniques with a steady-state helicon plasma exposure chamber, allowing for real-time, depth-resolved in situ measurements of material compositions during plasma exposure. Design solutions are described that provide compatibility between the ion beam analysis requirements in the presence of a high-intensity helicon plasma. The three primary ion beam analysis techniques, Rutherford backscattering spectroscopy, elastic recoil detection, and nuclear reaction analysis, are successfully implemented on targets during plasma exposure in DIONISOS. These techniques measure parameters of interest for plasma-material interactions such as erosion/deposition rates of materials and the concentration of plasma fuel species in the material surface.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1063/1.4861917 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Longitudinal Associations of PFAS Exposure With Insulin Sensitivity and β-Cell Function Among Hispanic Women With Gestational Diabetes Mellitus History.
Diabetes Care
January 2025
Department of Population and Public Health Sciences, Keck School of Medicine, University of Southern California, Los Angeles, CA.
Objective: We investigated associations between per- and polyfluoroalkyl substances (PFAS) and changes in diabetes indicators from pregnancy to 12 years after delivery among women with a history of gestational diabetes mellitus (GDM).
Research Design And Methods: Eighty Hispanic women with GDM history were followed from the third trimester of pregnancy to 12 years after delivery. Oral and intravenous glucose tolerance tests were conducted during follow-up.
Infants' Exposure to Toxic Trace Elements in Teethers.
Biol Trace Elem Res
January 2025
College of Arts & Sciences, American University of Kuwait, P.O. Box 3323, 13034, Safat, Kuwait.
Infants are particularly vulnerable to exposure to toxic trace elements due to their developmental stage and behaviors such as mouthing and chewing on toys. Chemical exposure to heavy metals in infants' toys is a significant concern as it poses a threat to their health and well-being. Therefore, quality control measures are essential to prevent infants' exposure to potentially harmful metals.
View Article and Find Full Text PDFAssociations Between Lead and Cadmium Exposure and Subclinical Cardiovascular Disease in U.S. Adults.
Cardiovasc Toxicol
January 2025
Department of Medicine, School of Clinical Medicine, The University of Hong Kong, Pokfulam, Hong Kong, China.
The impact of lead and cadmium exposure on subclinical cardiovascular disease (CVD), indicated by elevated high-sensitivity cardiac troponin (hs-cTnT) and N-terminal pro b-type natriuretic peptide (NT-proBNP) remains uncertain. We analyzed data from participants aged 20 and older, without overt CVD, in the National Health and Nutrition Examination Survey (NHANES; 1999-2004). Elevated lead and cadmium levels were defined as 3.
View Article and Find Full Text PDFPhoto-enhanced UiO-66/Au Nanoparticles with High Phosphatase-Like Activity for Rapid Degradation and Detection of Paraoxon.
Small
January 2025
State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P. R. China.
The severe environmental and human health hazards posed by organophosphorus compounds underscore the pressing need for advancements in their degradation and detection. However, practical implementation is impeded by prolonged degradation durations and limited efficiency. Herein, an effective interfacial modification approach is proposed involving the integration of photoactive Au nanoparticles (NPs) onto metal-organic frameworks, resulting in the synthesis of UiO-66/Au NPs exhibiting enhanced hydrolysis activity under light excitation.
View Article and Find Full Text PDFTau oligomers impair memory and synaptic plasticity through the cellular prion protein.
Acta Neuropathol Commun
January 2025
Department of Neuroscience, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, 20156, Milan, Italy.
Deposition of abnormally phosphorylated tau aggregates is a central event leading to neuronal dysfunction and death in Alzheimer's disease (AD) and other tauopathies. Among tau aggregates, oligomers (TauOs) are considered the most toxic. AD brains show significant increase in TauOs compared to healthy controls, their concentration correlating with the severity of cognitive deficits and disease progression.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!