@@ -365,7 +365,7 @@ save_PD_BACKGROUND
365365 The data items list here allow for the recording of the various coefficients
366366 used, rather than a complete enumeration of the value of the background
367367 calculated at every data point; although doing so is still possible - see
368- _pd_proc.intensity_bkg_calc .
368+ _pd_calc.intensity_bkg .
369369
370370 The computed background values should include all normalization corrections,
371371 and thus are specified on the same scale as the observed intensities
@@ -4429,7 +4429,7 @@ save_PD_DATA
44294429 _pd_meas.2theta_scan
44304430 _pd_meas.intensity_total
44314431 _pd_calc.intensity_total
4432- _pd_proc.intensity_bkg_calc
4432+ _pd_calc.intensity_bkg
44334433 1 5.001 43.364 25.994961 25.994961
44344434 2 5.004 38.007 26.200290 26.200290
44354435 3 5.007 38.318 26.404083 26.404083
@@ -4456,7 +4456,7 @@ save_PD_DATA
44564456 _pd_proc.intensity_total
44574457 _pd_proc.ls_weight
44584458 _pd_calc.intensity_total
4459- _pd_proc.intensity_bkg_calc
4459+ _pd_calc.intensity_bkg
44604460 0 1110.30100 1.489225 0.60008 6528.86960 0.553025 0.504217
44614461 1 1114.74220 1.495170 0.63531 6316.37917 0.571286 0.504020
44624462 2 1119.20117 1.501138 0.64690 6107.85715 0.593895 0.503826
@@ -4806,9 +4806,9 @@ save_pd_calc.intensity_total
48064806 _method.purpose Evaluation
48074807 _method.expression
48084808;
4809- t = pd_proc.intensity_bkg_calc
4809+ t = pd_calc.intensity_bkg
48104810 loop pcc as pd_calc_component {
4811- t += pcc.intensity_total - pd_proc.intensity_bkg_calc
4811+ t += pcc.intensity_total - pd_calc.intensity_bkg
48124812 }
48134813 pd_calc.intensity_total = t
48144814;
@@ -5858,6 +5858,7 @@ save_pd_proc.intensity_bkg_fix
58585858 of '.' for data points where a fixed background has not
58595859 been defined. The extrapolated background at every point
58605860 may be specified using _pd_proc.intensity_bkg_calc.
5861+ See also _pd_calc.intensity_bkg.
58615862
58625863 Background values should be on the same scale as the
58635864 _pd_proc.intensity_net values. Thus normalization and
@@ -6004,11 +6005,11 @@ save_pd_proc.intensity_norm
60046005 Values in this data item are normalisation-corrected and contain
60056006 a background component.
60066007
6007- Background values (for example, given by _pd_proc.intensity_bkg_calc)
6008- should be on the same scale as the _pd_proc.intensity_net values.
6009- Thus normalization and correction factors should be applied before
6010- background subtraction (or should be applied to the background values
6011- equally).
6008+ Background values (for example, given by _pd_proc.intensity_bkg_calc,
6009+ or _pd_calc.intensity_bkg) should be on the same scale as the
6010+ _pd_proc.intensity_net values. Thus normalization and correction
6011+ factors should be applied before background subtraction (or should be
6012+ applied to the background values equally).
60126013
60136014 Normalization factors applied to the data set (for
60146015 example, Lp corrections, compensation for variation in
@@ -10660,7 +10661,7 @@ save_pd_proc_ls.background_function
1066010661
1066110662 _definition.id '_pd_proc_ls.background_function'
1066210663 _alias.definition_id '_pd_proc_ls_background_function'
10663- _definition.update 2014 -06-20
10664+ _definition.update 2025 -06-21
1066410665 _description.text
1066510666;
1066610667 Description of the background treatment mechanism used to
@@ -10676,7 +10677,8 @@ save_pd_proc_ls.background_function
1067610677 coefficients used in the background function with their
1067710678 s.u.'s. The background values for each data point
1067810679 computed from the function should be specified in
10679- _pd_proc.intensity_bkg_calc.
10680+ _pd_proc.intensity_bkg_calc or _pd_calc.intensity_bkg,
10681+ depending on if s.u. values are calculated for the bkg values.
1068010682
1068110683 If background correction is performed using extrapolation
1068210684 from a set of points at fixed locations, these points
@@ -10688,7 +10690,10 @@ save_pd_proc_ls.background_function
1068810690 etc.) and whether the values were refined to improve the
1068910691 agreement. The extrapolated background intensity value for
1069010692 each data point should be specified in
10691- _pd_proc.intensity_bkg_calc.
10693+ _pd_proc.intensity_bkg_calc or _pd_calc.intensity_bkg,
10694+ depending on if s.u. values are calculated for the bkg values.
10695+
10696+ See also PD_BACKGROUND.
1069210697;
1069310698 _name.category_id pd_proc_ls
1069410699 _name.object_id background_function
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