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	<title>Jerome Kieffer Mail - Revision history</title>
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	<updated>2026-05-06T14:17:05Z</updated>
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		<id>https://wiki.cansas.org/index.php?title=Jerome_Kieffer_Mail&amp;diff=1056&amp;oldid=prev</id>
		<title>Tobias Richter: Created page with &quot;&lt;pre&gt; &gt;Dear Adrian, &gt; &gt;As I explained to Claudio, I do not have time to  &gt;attend to your meeting in Upsala, this week-end and I apologies. &gt;Nevertheless here are a couple of i...&quot;</title>
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		<updated>2012-07-28T13:01:23Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;lt;pre&amp;gt; &amp;gt;Dear Adrian, &amp;gt; &amp;gt;As I explained to Claudio, I do not have time to  &amp;gt;attend to your meeting in Upsala, this week-end and I apologies. &amp;gt;Nevertheless here are a couple of i...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;lt;pre&amp;gt;&lt;br /&gt;
&amp;gt;Dear Adrian,&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;As I explained to Claudio, I do not have time to &lt;br /&gt;
&amp;gt;attend to your meeting in Upsala, this week-end and I apologies.&lt;br /&gt;
&amp;gt;Nevertheless here are a couple of information &lt;br /&gt;
&amp;gt;about what I am doing in SAXS, and especially &lt;br /&gt;
&amp;gt;for BioSaxs (Beamline BM29 fromerly ID14-3 at ESRF).&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;* 2D storage of data: we use FabIO which has &lt;br /&gt;
&amp;gt;been re-written for the &amp;quot;ESRF Data Format&amp;quot; to &lt;br /&gt;
&amp;gt;accommodate multiple frames per file to keep &lt;br /&gt;
&amp;gt;together intensity and pixel variance &lt;br /&gt;
&amp;gt;(uncertainties). Please have a look at the draft &lt;br /&gt;
&amp;gt;of &amp;quot;fabio.pdf&amp;quot;. Curated 2D data could probably &lt;br /&gt;
&amp;gt;benefit from HDF5 storage using the NeXus convention.&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;* Data reduction can be made by various ways ... &lt;br /&gt;
&amp;gt;in pyFAI (see attached submitted publication) we &lt;br /&gt;
&amp;gt;aim at best performances for all ... SAXS being &lt;br /&gt;
&amp;gt;very simple in this aspect (no tilt, no problem) &lt;br /&gt;
&amp;gt;this library can nevertheless be used for SAXS &lt;br /&gt;
&amp;gt;and will be put in production on the BioSaxs &lt;br /&gt;
&amp;gt;beamline this fall. A 40x improvement in the data-reduction speed is expected.&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;* 1D storage: I have very little ideas about &lt;br /&gt;
&amp;gt;that as some program (ATSAS) enforces 3 column &lt;br /&gt;
&amp;gt;ascii (q/I/sigma) with 1 line header. Unless my &lt;br /&gt;
&amp;gt;scientists accept to change _OR_ Dmitri changes &lt;br /&gt;
&amp;gt;his interface, I see little chance to see &lt;br /&gt;
&amp;gt;another format emerging; especially not the &lt;br /&gt;
&amp;gt;over-vebose XML cansas tries to promote. Once &lt;br /&gt;
&amp;gt;again HDF5 could be an option but we are not using it here (because of ATSAS).&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;I attached as well some slides presenting what &lt;br /&gt;
&amp;gt;is ongoing on the BioSaxs beamline on the data analysis side.&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;With my best regards,&lt;br /&gt;
&amp;gt;&lt;br /&gt;
&amp;gt;--&lt;br /&gt;
&amp;gt;Jérôme Kieffer&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Tobias Richter</name></author>
	</entry>
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