Themed collection Brilliant Light Sources

11 items
Open Access Paper

X-Ray absorption spectroscopy on airborne aerosols

It is demonstrated that X-ray absorption spectroscopy can be used to analyze the chemical state of airborne aerosols in situ under controlled conditions.

Graphical abstract: X-Ray absorption spectroscopy on airborne aerosols
From the themed collection: Brilliant Light Sources
Open Access Paper

Using coherent X-rays to follow dynamics in amorphous ices

Amorphous ice plays an important role in our overall understanding of water's phase diagram.

Graphical abstract: Using coherent X-rays to follow dynamics in amorphous ices
Open Access Paper

Night-time oxidation at the air–water interface: co-surfactant effects in binary mixtures

The ageing of organic-coated aqueous aerosols at night is investigated by reacting NO3 with binary surfactant mixtures floating on water.

Graphical abstract: Night-time oxidation at the air–water interface: co-surfactant effects in binary mixtures
From the themed collection: Atmospheric Interfaces – Topic Highlight
Open Access Paper

Orcinol and resorcinol induce local ordering of water molecules near the liquid–vapor interface

Resorcinol and orcinol are surface active in aqueous solution, self-aggregate into islands and induce tetrahedral ordering in nearby water. This may be relevant for ice nucleation promoted by phenolic species in the atmosphere.

Graphical abstract: Orcinol and resorcinol induce local ordering of water molecules near the liquid–vapor interface
From the themed collection: Atmospheric Interfaces – Topic Highlight
Open Access Paper

Surface composition of size-selected sea salt particles under the influence of organic acids studied in situ using synchrotron radiation X-ray photoelectron spectroscopy

Synchrotron X-ray photoelectron spectroscopic surface characterisation of size-resolved sea salt aerosol particles revealed Mg enrichment in the particle surface layer which was either enhanced or decreased depending on the organic compound added.

Graphical abstract: Surface composition of size-selected sea salt particles under the influence of organic acids studied in situ using synchrotron radiation X-ray photoelectron spectroscopy
From the themed collection: Aerosols – Topic Highlight
Open Access Paper

The evolution of surface structure during simulated atmospheric ageing of nano-scale coatings of an organic surfactant aerosol proxy

A nano-scale proxy for atmospheric surfactant organic films undergoes changes in morphology and hygroscopicity during simulated atmospheric processing.

Graphical abstract: The evolution of surface structure during simulated atmospheric ageing of nano-scale coatings of an organic surfactant aerosol proxy
Open Access Paper

Changes to lung surfactant monolayers upon exposure to gas phase ozone observed using X-ray and neutron reflectivity

Lung surfactant at the air water interface reacts with ozone leading to changes in surface tension, film thickness, structure.

Graphical abstract: Changes to lung surfactant monolayers upon exposure to gas phase ozone observed using X-ray and neutron reflectivity
Open Access Paper

Chemical composition and morphological analysis of atmospheric particles from an intensive bonfire burning festival

Atmospheric particles were sampled in Rehovot, Israel during a national Lag Ba'Omer bonfire festival as a case study to investigate the physical and chemical transformations of mixed mineral dust and biomass burning (BB) aerosols.

Graphical abstract: Chemical composition and morphological analysis of atmospheric particles from an intensive bonfire burning festival
From the themed collection: Brilliant Light Sources
Open Access Paper

Measurement of gas-phase OH radical oxidation and film thickness of organic films at the air–water interface using material extracted from urban, remote and wood smoke aerosol

The presence of an organic film on a cloud droplet or aqueous aerosol particle has the potential to alter the chemical, optical and physical properties of the droplet or particle.

Graphical abstract: Measurement of gas-phase OH radical oxidation and film thickness of organic films at the air–water interface using material extracted from urban, remote and wood smoke aerosol
From the themed collection: Brilliant Light Sources
Open Access Paper

Ice nucleation imaged with X-ray spectro-microscopy

Ice nucleation can now be imaged in situ using X-ray spectro-microscopy in a new experiment, which is applied to mineral aerosol particles composed of ferrihydrite or feldspar and associated organic matter.

Graphical abstract: Ice nucleation imaged with X-ray spectro-microscopy
Open Access Paper

Surface solvation of Martian salt analogues at low relative humidities

Salt aerosols play important roles in many processes related to atmospheric chemistry and the climate systems on both Earth and Mars.

Graphical abstract: Surface solvation of Martian salt analogues at low relative humidities
From the themed collection: Brilliant Light Sources
11 items

About this collection

This collection features high-quality original research articles on a topic related to the Earth’s or extra-terrestrial atmospheres that take advantage of high-brilliance beam sources, such as X-rays, free electron lasers, and neutrons, which are increasingly contributing to atmospheric and environmental research.

Guest Editors: Thorsten Bartels-Rausch (Paul Scherrer Institute, Switzerland), Hendrik Bluhm (Fritz Haber Institute of the Max Planck Society, Germany), Christian Pfrang (University of Birmingham, UK), Nønne Prisle (University of Oulu, Finland)

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