CEMHTI - Conditions Extrêmes et Matériaux : Haute Température et Irradiation

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In Situ Raman spectroscopy

Disorder and Optical Properties
patrick.simon@cnrs-orleans.fr  Patrick Simon   [+33](0)238 25 55 21

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the aim of this set-up is to perform an in situ spectral study of materials in extremes conditions. A unique cyclotron beam accelerator / Raman spectrometry coupling system is used in routine experiments of default in solids or under beam alteration of materials

experimental set-up

this unique transportable device is based on a commercial RA100 Renishaw spectrometer.
A Raman probe is used to achieve hostile conditions measurements.
The use of different microscope objectives allows us to perform measurements with working distance up to 3 cms.
The recent laboratory developed Raman probe allows bigger working distance measurements, ranging from 10 centimetres (tenth of cms) up to one or two meters.
For example, we recently obtained 30 cms distance Raman spectra in a plasma reactor with a impressive signal to noise ratio.

you can read this article published in the regional journal "Microscoop " edited by CNRS in 2009. It present our in in situ versatile portable Raman spectroscopy system coupled with a cyclotron accelerator, allowing monitoring of a solid/liquid interface under irradiation and thus giving access to effects of radiolysis
The setup is described in the article of the Journal of Raman Spectroscopy, Canizarès et al, 2012 (10.1002/jrs.4088)

you can also read this article published in the local newspaper "l'écho républicain " in september 2013. It presents a measurement campaign we performed in the Foulon cave situated in Châteaudun, Eure et Loire, France.

This article was published in the Reunion island newspaper "le journal de l'île" in october 2013. It presents a measurement campaign we performed in the lava tunnels situated in the south of the Reunion island, France.

page créée et maintenue par Aurélien Canizarès