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  1. OA@INAF
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  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
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Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/27899
Title: Design, development, and testing of an environmental P-T cell for infrared spectroscopy measurements
Authors: DE ANGELIS, Simone 
FERRARI, MARCO 
DE SANCTIS, MARIA CRISTINA 
BIONDI, David 
Boccaccini, A.
Morbidini, A.
FORMISANO, Michelangelo 
Ammannito, E.
Di Iorio, T.
Issue Date: 2018
Journal: REVIEW OF SCIENTIFIC INSTRUMENTS 
Number: 89
Issue: 10
First Page: 103107
Abstract: Water absorption bands due to superficially adsorbed molecules often dominate the near-infrared spectra of particulate minerals and rocks, when measured in the laboratory in the reflectance mode. In order to remove this, the spectral effect is thus necessary to acquire spectra of samples in vacuum and at higher temperatures. With the aim to accomplish this task, we developed an environmental cell to perform infrared spectroscopic measurements at controlled pressure-temperature conditions. Currently the cell allows one to measure reflectance spectra in the temperature range from room values up to 300 °C (573 K), in the pressure range of 10<SUP>3</SUP>-10<SUP>-6</SUP> mbar. The acquisition of spectra continuously in two distinct phases, namely, during a preliminary pumping stage (at room T) and subsequently during a heating stage (in vacuum), permits to highlight and characterize separately the effect of pressure and temperature on infrared spectra.
URI: http://hdl.handle.net/20.500.12386/27899
URL: https://aip.scitation.org/doi/full/10.1063/1.5047038
ISSN: 0034-6748
DOI: 10.1063/1.5047038
Bibcode ADS: 2018RScI...89j3107D
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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