From 1f02539c192e1c400474ea480341ccefb49eaf36 Mon Sep 17 00:00:00 2001 From: Thomas White Date: Wed, 10 Mar 2021 14:30:18 +0100 Subject: indexamajig: Add --wavelength-estimate This is a more sensible non-indexer-specific and non-Xray-specific replacement for --pinkIndexer-override-photon-energy --- doc/man/indexamajig.1 | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'doc') diff --git a/doc/man/indexamajig.1 b/doc/man/indexamajig.1 index 1cca53ba..a912e19a 100644 --- a/doc/man/indexamajig.1 +++ b/doc/man/indexamajig.1 @@ -384,6 +384,11 @@ Skip the prediction refinement step. Usually this will decrease the quality of .PD Check that most of the peaks can be accounted for by the indexing solution. This usually increases the quality of the indexing solutions, but prevents "subtract and retry" multi-lattice indexing from working well. +.PD 0 +.IP \fB--wavelength-estimate=\fIm\fR +.PD +Some indexing algorithms need to know the wavelength of the incident radiation in advance, e.g. to prepare an internal look-up table. However, if the wavelength is taken from image headers, then the wavelength is not available at start-up. In this case, you will be prompted to add this option to give an approximate wavelength, in metres. A warning will be generated if the actual wavelength differs from this value by more than 10%. + .PD 0 .IP \fB--taketwo-member-threshold=\fIn\fR .IP \fB--taketwo-len-tolerance=\fIn\fR @@ -446,7 +451,6 @@ These set low-level parameters for the XGANDALF indexing algorithm. .IP \fB--pinkIndexer-no-check-indexed\fR .IP \fB--pinkIndexer-max-refinement-disbalance=\fIn\fR .IP \fB--pinkIndexer-override-bandwidth=\fIn\fR -.IP \fB--pinkIndexer-override-photon-energy=\fIn\fR .IP \fB--pinkIndexer-override-visible-energy-range=\fImin-max\fR .PD @@ -474,8 +478,6 @@ These set low-level parameters for the PinkIndexer indexing algorithm. .IP \fB--pinkIndexer-override-bandwidth=\fIn\fR Overrides the bandwidth in (delta energy)/(mean energy) to use for indexing (which usually is defined in the geometry file). Should be used together with \fB--pinkIndexer-override-photon-energy=\fIn\fR. Note: this option sets the borders for the spectrum, whereas the option in the geometry file sets the standard deviation for a Gaussian that fits the spectrum. Internally, the standard deviation is multiplied by 5 to compute the hard borders of the spectrum. I.e., photon_energy_bandwith = 0.005 in the geometry file equals --pinkIndexer-override-bandwidth=0.025. For monochromatic experiments usually --pinkIndexer-override-bandwidth=0.02 is sufficiently large. If in doubt, use --pinkIndexer-override-visible-energy-range. .IP -\fB--pinkIndexer-override-photon-energy=\fIn\fR Overrides the mean energy in eV to use for indexing (which usually is defined in the geometry file). Should be used together with \fB--pinkIndexer-override-bandwidth=\fIn\fR -.IP \fB--pinkIndexer-override-visible-energy-range=\fImin-max\fR Overrides photon energy and bandwidth according to a range of energies that have high enough intensity to produce visible Bragg spots on the detector. min and max range borders are separated by a minus sign (no whitespace). .SH INTEGRATION OPTIONS -- cgit v1.2.3