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<H1><A NAME="SECTION00240000000000000000"></A> <A NAME="sec:trimdir"></A>
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What are settings and calibration files for?
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</H1>
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<P>
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The analog characteristics of the detector have to be initialized in order to define the noise and the dynamic range which need to be used for the measurements. These parameters have a different meaning for analog or digital detectors, but in both cases some predefined voltage levels and current (we call them <I>settings</I>) must be laoded to the detector. Moreover, there are some parameters that are custom to single detectors or modules (e.g. the trimbits). All these settings are stored in some settings file, which are organized in a <I>settingsdir</I> with a definite architecture, where the software will look for the files to load to the detector whaen changing its settings.
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<P>
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In addition to that, in a single photon counting detector the threshold is set as a voltage level for the comparator, but for the user it is useful to have a direct conversion to the energy level. For this, after a proper calibration of the detector (see specific documentation) calibration file are generated in order to convert threshold in volts to keV. Also in this case the directory <I>caldir</I> where the calibration files are stored must be defined ad organized with a proper architecture, suche that the software can find the calibration coefficients for settings the threshold.
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<BR>
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Normally <I>settingsdir</I> and <I>caldir</I> can be the same, but have been left separate for flexibility.
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<P>
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The <I>settingsdir</I> and <I>caldir</I> should be properly configured for your detector either in a configuration file (for use with text clients, GUI or API) or dynamically (works only for the text clients).
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<P>
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In the following, the architecture of the <I>settingsdir</I> and <I>caldir</I> is described for the different detectors.
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HREF="node2.html">SLS Detectors Software</A>
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<B> Previous:</B> <A NAME="tex2html232"
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HREF="node6.html">How can I configure</A>
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<ADDRESS>
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Thattil Dhanya
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2018-09-28
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