Stokes spectra 2014.2.23

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Stokes spectra 2014.2.23 Tetsu Anan

description

Stokes spectra 2014.2.23. Tetsu Anan. Before DST calibration. 20140223scan012_iquv_d.gif. After DST calibration. 20140223scan012_iquv_d_co.gif. DST calibration. Calibration by using polarization in continuum. Calibration on 2013.5.5. X N = −0.0187 、 τ N = −10.3° 、 X C = 0.0154 、 - PowerPoint PPT Presentation

Transcript of Stokes spectra 2014.2.23

Page 1: Stokes spectra 2014.2.23

Stokes spectra2014.2.23

Tetsu Anan

Page 2: Stokes spectra 2014.2.23

Before DST calibration20140223scan012_iquv_d.gif

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After DST calibration20140223scan012_iquv_d_co.gif

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DST calibration

XN = −0.0187、 τN = −10.3°、 XC = 0.0154、τC = −6.78°、 Sc = 0

XN = −0.0200、 τN = −10.3°、 XC = 0.0200、τC = −5.00°、 Sc = 0

Calibration on 2013.5.5 Calibration by using polarization in continuum

Better

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After DST “re”calibration20140223scan012_iquv_d_cn.gif

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After DST “re”calibrationHigh contrast( ±0.5%)

20140223scan012_iquv_d_cn_2.gif

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Continuum offsetHigh contrast( ±0.5%)

refer to polarization in continuum between white lines

20140223scan012_iquv_d_cn_con.gif

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Remove fringe, Casini’s methodHigh contrast( ±0.5%)

20140223scan012_iquv_d_cn_con_casini1.gif

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Remove fringe, Casini’s methodHigh contrast( ±0.1%)

20140223scan012_iquv_d_cn_con_casini1_1.gif

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Remove fringe, Casini’s method、 SiHigh contrast( ±0.5%)

20140223scan012_iquv_d_cn_con_casini1si.gif

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Summary

• Save data– He : 20140526_7.sav– Si : 20140527_1.sav

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Sign of V

• NOAA11982、黒点は波長短い方が負