February 2023

Monthly roundup from Raymax Lasers

1 February 2023

Applied Spectra Inc

Raymax Applications Pty Ltd has announced the supply and service of analytical instruments from Applied Spectra Inc. As the leading supplier of analytical instruments, Applied Spectra stands at the forefront of laser ablation based elemental analysis techniques, simplifying the process of elemental chemical analysis, while delivering rapid, high-precision results that are environmentally friendly. Today, laser analysis offers a compelling value proposition over traditional chemical analysis methods.

Taking chemical analysis into space saw the arrival on Mars of NASA’s Curiosity Rover. Deploying a LIBS instrument, named ChemCam, it is analysing the chemical composition of the Martian terrain. Scientists from Applied Spectra worked in partnership with NASA to develop the instrument.

Laser parameters: energy, wavelength, pulse duration, the physical and chemical sample properties as well as the ambient gas, all influence performance. These can govern the optical and physical properties of the plasma, the primary and secondary mechanisms responsible for mass removal, and the particle size distribution. It is essential a conversation with the team at Raymax is sought, to assist with the proper selection of an instrument with the appropriate parameters for you to achieve accurate and precise analytical measurements using LIBS and LA-ICP-MS.

ATL Lasertechnik

The CLOUD experiment at CERN, Switzerland, uses a special chamber to study the possible link between galactic cosmic rays and cloud formation. The compact 1kHz ATLEX-1 air cooled excimer laser mounted on top of the chamber, generates high intensity UV lights to simulate the sunlight. Aerosol particles can form and grow in Earth’s upper troposphere in an unexpected way. The new mechanism at CERN may represent a major source of cloud and ice seed particles in areas of the upper troposphere where ammonia is efficiently transported vertically, such as over the Asian monsoon regions. Aerosol particles are known to generally cool the climate by reflecting sunlight back into space and by making clouds more reflective. However, how new aerosol particles form in the atmosphere remains relatively poorly known.

An article was published in Nature. Find more at CERN.

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