DocumentCode
2717072
Title
Measurement of the complex dielectric constant of volcanic ash at millimetre wavelengths
Author
Rogers, Alexander B. ; Macfarlane, David G. ; Robertson, Duncan A.
Author_Institution
Sch. of Phys. & Astron., Univ. of St Andrews, St. Andrews, UK
fYear
2010
fDate
5-10 Sept. 2010
Firstpage
1
Lastpage
2
Abstract
Methods for determining the dielectric permittivity of rock samples at millimetre wave frequencies have been investigated. A quasi-optical approach using pellets of powdered samples was found to work well, avoiding the dimensional restrictions of small waveguides. The permittivity of volcanic rock and ash samples was measured, providing valuable data for MMW radar remote sensing of terrain and ash clouds.
Keywords
ash; geophysical techniques; permittivity; remote sensing by radar; rocks; MMW radar remote sensing; ash clouds; ash sample; complex dielectric constant; dielectric permittivity; millimetre wave frequencies; volcanic ash; volcanic rock sample; Ash; Clouds; Frequency measurement; Permittivity; Permittivity measurement; Wavelength measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location
Rome
Print_ISBN
978-1-4244-6655-9
Type
conf
DOI
10.1109/ICIMW.2010.5612851
Filename
5612851
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