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--- systematicswg:telecons:2018-01-31:start [2018/01/31 10:49] – created joydidier
+++ systematicswg:telecons:2018-01-31:start [2018/01/31 12:29] (current) – joydidier
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+=== Polarization Angle ===
-  * Notes on Polarization Angle:
+Uncertainty in polarization calibration creates EB leakage. Sacrifice cosmic birefringence limits to zero TB,TE,EB. Improvement of calibration sources: difficult across broad bands and large. Onboard calibrator? Compact polarized source measurements should be revisited? Hardware solution potentially?
+  * Analysis:
     * Planck:
       * [[https://www.aanda.org/articles/aa/full_html/2010/12/aa13054-09/aa13054-09.html | Planck HFI ground calibration]] measured detector polarization angles to ~ 1  degree relative uncertainty and claimed 0.3 degrees absolute uncertainty.
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       * Re-do analysis with PICO sensitivity estimate?
       * Investigate how much we really lose any birefringence science?
+Some more references:
+  * [[http://iopscience.iop.org/article/10.1088/2041-8205/762/2/L23/meta | SELF-CALIBRATION OF COSMIC MICROWAVE BACKGROUND POLARIZATION EXPERIMENTS by Keating, Shimon and Yadav]]
+  * See more references in the systematics table