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diff --git a/doc/articles/speed.rst b/doc/articles/speed.rst index b63e6164..9962c07f 100644 --- a/doc/articles/speed.rst +++ b/doc/articles/speed.rst @@ -132,3 +132,13 @@ you limit the resolution at the integration stage, the number of reflections to be integrated will be much smaller, which can lead to a significant speed improvement. However, the ``--push-res`` value that you use for merging must be smaller than the value used for integration. + + +Use a static detector geometry +============================== + +CrystFEL geometry files allow some aspects of the geometry to come from the +data files, such as the panel z-positions ("clen"/camera length) and overall +detector shifts. If you can instead give fixed numerical values for +everything, then some parts of CrystFEL can prepare calculations in advance. +In some cases, this can make a significant speed improvement. |