A new method to calibrate MOF-based instruments
Abstract
We present a method for calibrating every instruments based on the magneto-optical filter (MOF) technology \citep{cacciani78}. The method allows to determine the operating characteristics of the filter and to find if spurious transmissions are present in the transmission profile due to an incorrect operating temperature or to the degradation of the filter. These characteristics are inferred by modelling the blue and/or red line intensity images acquired with the MOF system. We applied the method to the observations performed with the VAMOS instrument.
- Publication:
-
Memorie della Societa Astronomica Italiana Supplementi
- Pub Date:
- 2006
- Bibcode:
- 2006MSAIS...9..112M
- Keywords:
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- Sun: solar instrumentation;
- Sun: magneto-optical filter;
- Sun: solar oscillations