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New system for polarisation experiment
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vcarrenoc
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June 19, 2014 - 9:54 am
Member Since: October 1, 2013
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A modification has been made in a Brewer double monocromator chassis window (supplied by K&Z) to be easily removed in order to carry out the polarisation experiment during the Davos campaign. In the link can be seen the simplicity of the system.

http://www.eubrewnet.org/cost1.....d2d0da8693

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Alberto Redondas
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June 25, 2014 - 4:28 pm
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We want to test before the campaign the polarization measurements on the brewer, K&Z provide a spare cover and Virgilio modify the quarz window holder so we can easyly remove the quarzt window

Jose Manuel will test the device (tomorrow) and we have several questions about the procedure.

We are intereseted on measurements with low sun angles where the polarization effect is higher, but which area the measuements to test , only ds ? , or also direct scan and/or zs.

Alberto

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Alberto Redondas
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June 25, 2014 - 4:41 pm
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On the Alexander Cede et al paper use direct sun scan (ss) from 17º to 83º , also note that there isn't to much wavelength dependence so probably you can increase the step of the uv scan.

http://www.esrl.noaa.gov/gmd/g.....er2006.pdf

Alberto

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Alberto Redondas
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June 25, 2014 - 10:19 pm
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Direct sun scan (ss.rtn) with 50A step. Takes about 6 minutes

http://www.eubrewnet.org/cost1.....dcd10ee667

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