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In situ measurement of gas-solid interactions in astrophysicaldust & planetary analogues

Published online by Cambridge University Press:  13 February 2013

S.P. Thompson ,
J.E. Parker ,
S.J. Day ,
A. Evans  and
C.C. Tang
S.P. Thompson
Affiliation:
Diamond Light Source, Chilton, Didcot, Oxon OX11 0DE, UK
J.E. Parker
Affiliation:
Diamond Light Source, Chilton, Didcot, Oxon OX11 0DE, UK
S.J. Day
Affiliation:
Diamond Light Source, Chilton, Didcot, Oxon OX11 0DE, UK Astrophysics Group, Keele University, Staffs ST5 5BG, UK
A. Evans
Affiliation:
Astrophysics Group, Keele University, Staffs ST5 5BG, UK
C.C. Tang
Affiliation:
Diamond Light Source, Chilton, Didcot, Oxon OX11 0DE, UK

Abstract

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Facilities for studying gas-solid interactions on beamline I11 at the Diamond LightSource are described. Sample evolution in low and high gas pressure capillary cells(1 × 10-7 to 100 bar) with non-contact cooling and heating (80 to 1273 K) canbe monitored structurally (X-rays) and spectroscopically (Raman). First results on thedehydration of MgSO4.7H2O, the formation of CO2 clathratehydrate and the reaction of amorphous CaSiO3 grains with CO2 gas toform CaCO3 are presented to demonstrate the application of these cells tolaboratory investigations involving the processing of cosmic dust simulants and planetarymaterials analogues.

References

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