Plasma Light Source
Plasma Light Source - Related Videos
10:04
Flame Experiments at the Advanced Light Source: New Insights into Soot Formation Processes
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Cited by 4 •
2014
Gas sampling from laboratory-scale flames with online analysis of all species by mass spectrometry is a powerful method to investigate the complex mixture of chemical compounds occurring during combustion processes. Coupled with tunable soft ionization via synchrotron-generated vacuum-ultraviolet radiation, this technique provides isomer-resolved information and potentially fragment-free mass spectra.
10:32
Sample Preparation and Transfer Protocol for In-Vacuum Long-Wavelength Crystallography on Beamline I23 at Diamond Light Source
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Cited by 2 •
2021
Here, we present a protocol for cryogenic sample preparation and transfer of crystals into the vacuum endstation on beamline I23 at Diamond Light Source, for long-wavelength macromolecular X-ray crystallography experiments.
06:19
Fixed Target Serial Data Collection at Diamond Light Source
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Cited by 22 •
2021
We present a comprehensive guide to fixed target sample preparation, data collection, and data processing for serial synchrotron crystallography at Diamond beamline I24.
08:35
Achieving Efficient Fragment Screening at XChem Facility at Diamond Light Source
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Cited by 78 •
2021
This paper describes the complete XChem process for crystal-based fragment screening, starting from applying for access and all subsequent steps to data dissemination.
07:08
Crystallization and In Situ Room Temperature Data Collection Using the Crystallization Facility at Harwell and Beamline VMXi, Diamond Light Source
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Cited by 4 •
2024
We present a protocol for the crystallization of proteins using the crystallization facility in the Research Complex at Harwell and subsequent in situ X-ray crystallographic data collection from crystals within the plates at Diamond's Versatile Macromolecular Crystallography in situ (VMXi) beamline. We describe sample requirements, crystallization protocols, and data collection guidelines.
FAQs
Emission lines provide the analytical signature of the source. Because gas composition produces characteristic wavelengths and operating conditions can alter the emitted radiation, researchers can select or tune illumination for spectral features relevant to a measurement. This wavelength-specific behavior helps distinguish elemental signals in complex biological samples rather than treating the plasma as undifferentiated bright light.
The electrical discharge is the energy-delivery step that sustains analytical emission. It transfers energy to atoms and ions, moving them into excited states; photon emission follows when those species return to lower energy states. This sequence links operating conditions to the observed spectrum, so consistent control of the energized plasma matters when comparing measurements or seeking stable analytical performance.
Stable, high-energy emission improves analytical sensitivity, meaning the method can detect or quantify elemental signals more effectively in a measurement. In biochemical work, that advantage is important when the element of interest occurs at low abundance, such as a trace metal in a biological sample. The resulting spectra support more reliable investigation of elemental composition and metal-associated biology.
The source supplies intense, tunable radiation used by a spectroscopic method, while the biological sample provides the elemental information being examined. Researchers interpret the resulting spectral response to identify or quantify elements. This connects source selection and operating conditions with the analytical question, such as measuring trace metals in a biochemical sample.
These measurements can reveal elemental composition, including trace-metal content, rather than only broad biochemical properties. That information can be used to examine metal-dependent enzymes, metabolites, and cellular processes. The value lies in connecting a measured elemental signal with biochemical systems in which metals may contribute to molecular function or cellular behavior.
Researchers would choose this type of source when a biochemical analysis requires intense, tunable radiation and improved sensitivity for elemental spectroscopy. It is especially relevant for samples in which identifying or quantifying trace metals is central to the research question. The approach supports studies that move from elemental measurement toward interpretation of enzyme, metabolite, or cellular context.