Changes in / [b12404e:d3b57a0] in sasview
- Location:
- src/sas/qtgui/Calculators/media
- Files:
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- 1 deleted
- 2 edited
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src/sas/qtgui/Calculators/media/gen_gui_help.png
- Property mode changed from 100644 to 100755
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src/sas/qtgui/Calculators/media/sas_calculator_help.rst
r2f539b2 r417c03f 24 24 25 25 Assuming that all the pixel sizes are the same, the elastic scattering 26 intensity from the particle is defined as26 intensity from the particle is 27 27 28 28 .. image:: gen_i.png … … 33 33 the position of the $j^\text{th}$ pixel respectively. 34 34 35 The total volume $V$ is equal to35 The total volume $V$ 36 36 37 37 .. math:: … … 43 43 density * Avogadro number) for the atomic structures). 44 44 45 $V$ can be corrected by users (input parameter `Total volume`). This correction 46 is useful especially for an atomic structure (such as taken from a PDB file) 47 to get the right normalization. 45 $V$ can be corrected by users. This correction is useful especially for an 46 atomic structure (such as taken from a PDB file) to get the right normalization. 48 47 49 *NOTE! $\beta_j$ displayed in the GUI may be incorrect (input parameter 50 `solvent_SLD`) but this will not affect the scattering computation if the 51 correction of the total volume V is made.* 48 *NOTE! $\beta_j$ displayed in the GUI may be incorrect but this will not 49 affect the scattering computation if the correction of the total volume V is made.* 52 50 53 51 The scattering length density (SLD) of each pixel, where the SLD is uniform, is … … 101 99 .. image:: mxp.png 102 100 103 104 105 101 .. image:: myp.png 106 107 108 102 109 103 .. image:: mzp.png 110 104 111 112 113 105 .. image:: mqx.png 114 115 116 106 117 107 .. image:: mqy.png 118 108 119 Here the $M _{0x}$, $M_{0y}$ and $M_{0z}$ are the $x$, $y$ and $z$109 Here the $M0_x$, $M0_y$ and $M0_z$ are the $x$, $y$ and $z$ 120 110 components of the magnetisation vector in the laboratory $xyz$ frame. 121 122 123 .. .. image:: Mxyzp.png124 125 111 126 112 .. ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ … … 129 115 -------------- 130 116 131 .. figure:: gen_gui_help.png117 .. image:: gen_gui_help.png 132 118 133 .. 134 135 1) Load .sld, .txt, or .omf datafile 136 2) Select default shape of sample 137 3) Draw magnetization with arrows (not recommended for a large number of 138 pixels). 139 4) Ratio of (+/total) neutrons after analyser 140 5) Ratio of (+/total) neutrons before sample 141 6) Polarization angle in degrees 142 7) Default volume calculated from the pixel info 143 (or natural density of pdf file) 144 8) Compute the scattering pattern 145 9) Reset GUI to initial state 146 10) Display mean values or enter a new value if enabled 147 11) Save the sld data as sld format 148 149 .. After computation the result will appear in the *Theory* box in the SasView 119 After computation the result will appear in the *Theory* box in the SasView 150 120 *Data Explorer* panel. 151 121 … … 156 126 of neutrons before the sample and at the analyzer, respectively. 157 127 158 *NOTE 1. The values of Up_frac_in and Up_frac_outmust be in the range128 *NOTE 1. The values of* Up_frac_in *and* Up_frac_out *must be in the range 159 129 0.0 to 1.0. Both values are 0.5 for unpolarized neutrons.* 160 130 … … 163 133 164 134 *NOTE 3. For the nuclear scattering length density, only the real component 165 is taken intoaccount.*135 is taken account.* 166 136 167 137 .. ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ … … 181 151 182 152 where $v_j \beta_j \equiv b_j$ is the scattering 183 length of the $j^\text{th}$ atom. 184 .. The calculation output is passed to the *Data Explorer* 153 length of the $j^\text{th}$ atom. The calculation output is passed to the *Data Explorer* 185 154 for further use. 186 155 187 .. figure:: pdb_combo.png 188 189 .. 190 191 1) PDB file loaded 192 2) disabled input for *Up_frac_in*, *Up_frac_oupt*, *Up_theta* 193 3) option to perform the calculations using "Fixed orientations" (2D output) 194 or "Averaging over all orientations using Debye equation" (1D output). 195 This choice is only available for PDB files. 196 197 156 .. image:: pdb_combo.jpg 198 157 199 158 .. ZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ
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