نتایج جستجو برای: pixe

تعداد نتایج: 469  

Journal: :Applied sciences 2023

A bronze wine vessel attributed to 1600–1046 B.C., Shang dynasty in China, an object from the East Asian Collection of Museum Applied Arts and Sciences Sydney (Australia), was studied using a non-destructive scientific analytical protocol based on synergic combination nuclear techniques. Gamma spectrometry, neutron-computed tomography, proton-induced X-ray emission (PIXE) spectroscopy were appl...

2016
Piotr Chaniecki Marek Rękas Jolanta Adamczyk Zbigniew Szklarz

Trace elements concentrations of Ca, Fe, and Zn in cataractous human lenses have been determined using the proton induced X-ray emission technique (PIXE). The technique was selected due to its sensitivity and only modest requirements for sample material processing and preparation. In the study a statistically significant sample of post–surgery (phacoemulsification method) human lenses with cata...

2011
Chris Jeynes Roger P. Webb Annika Lohstroh

The suite of techniques which are available with the small accelerators used for MeV ion beam analysis (IBA) range from broad beams, microbeams or external beams using the various particle and photon spectrometries (including RBS, EBS, ERD, STIM, PIXE, PIGE, NRA and their variants), to tomography and secondary particle spectrometries like MeV-SIMS. These can potentially yield almost everything ...

Journal: :Applied and environmental microbiology 2008
Pål Axel Olsson Edith C Hammer Håkan Wallander Jan Pallon

We investigated element accumulation in the arbuscular mycorrhizal fungus Glomus intraradices. Fungal spores and mycelia growing in monoxenic cultures were analyzed. The elemental composition was quantified using particle-induced X-ray emission (PIXE) in combination with scanning transmission ion microscopy. In the spores, Ca and Fe were associated mainly with the spore wall, while P and K show...

Journal: :iranian journal of radiation research 0
j. salimi department of surgery, sina hospital, tehran university of medical sciences, tehran, iran k. moosavi s. vatankhah a. yaghoobi

background: within the context of developing techniques to facilitate the diagnosis of the thyroid diseases, the elemental composition of pathological thyroid tissue (neoplastic and non-neoplastic) was investigated by proton induced x-ray emission. the pixe has been widely used as a sensitive technique for trace elemental analysis in both biological and medical fields. materials and methods: th...

Journal: :New Journal of Physics 2022

Abstract In this work, we demonstrate the feasibility of quantitative laser-based x-ray fluorescence (XRF) combined with particle-induced emission (PIXE) (called XPIF for and fluorescence) spectroscopy analysis elemental composition in solid samples. A multi-hundred TW laser system accelerated protons produced x-rays that were impinging on samples, inducing characteristic line emissions element...

2016
A. V. Romanenko A. G. Ponomarev

The application of scanning nuclear microprobe for study a radiation-induced migration of impurities at the grain boundaries in structural materials was considered. The work describes the sample preparation for a further irradiation of microscopic areas which include a few grains. Copper samples with deposited sulfur film were used in the present work. Determinations of a chemical composition o...

2002
G. Weber D. Strivay L. Martinot

Although glass is usually considered as a very stable archaeological material, it can undergo severe degradation. Soda-lime glass, the most common glass throughout ancient times, is particularly sensitive to this problem. The glass surface absorbs moisture from its environment and the contact with CO2 causes Na2O and NaOH to convert to Na2CO3, which is extremely hygroscopic. The subsequent unst...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2013
Chang-Jin Ma Kyung-Chul Hwang Ki-Hyun Kim

This study was carried out to describe the chemical characteristics of individual residual particles in hexagonal snow crystals, which can provide a clue to the aerosol removal mechanism during snowfall. In the present study, to collect snow crystal individually and to identify the elemental composition of individual residues retained in a hexagonal crystal, an orchestration of the replication ...

Journal: :Journal of Analytical Atomic Spectrometry 2023

A novel in-air PIXE (Particle Induced X-ray Emission) setup was developed which is capable of the fast, sensitive, fully quantitative characterization elemental composition thin and thick samples for elements with Z > 6.

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