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fileformat:prm
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| ====== Input file for ImageD11 (prm) ====== | ====== Input file for ImageD11 (prm) ====== | ||
| - | An ''.prm'' file is an ASCII file which serves as an input file for the [[software:imaged11|ImageD11]] . The code below shows an example of how a basic ''.prm'' file looks like. | + | An ''.prm'' file is an ASCII file which serves as an input file for the [[software:imaged11|ImageD11]]. The code below shows an example of how a basic ''.prm'' file looks like. Explanations are below. |
| <code> | <code> | ||
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| cell_sg 62 | cell_sg 62 | ||
| </code> | </code> | ||
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| + | Information in the ''prm'' file are | ||
| + | * **Cell parameters**: cell_a, cell_b, cell_c in Angstrom; cell_alpha, cell_beta, cell_gamma in degrees (typically taken from [[software:maud|Maud]] refinement and can be [[processing:compute_gvectors|refined using ImageD11]]) | ||
| + | * **Lattice type**: P = primitive, F = face-centered, A = A-centered, ... | ||
| + | * **Distance** = sample-detector distance in µm (typically taken from [[software:maud|Maud]] refinement and can be [[processing:compute_gvectors|refined using ImageD11]]) | ||
| + | * **O-matrix** (check the [[dac_experiments:geometry|concept of the O-matrix]] if you are not sure) | ||
| + | * **Omegasign** = rotation direction (1 = clockwise, -1 = counterclockwise) | ||
| + | * **Tilt**: Be careful with this one: Tilt in ImageD11 is sometimes not the same as tilt in other software! (usually keep 0 and [[processing:compute_gvectors|refined later using ImageD11]]) | ||
| + | * **Wavelength** in Angstrom | ||
| + | * **y_size**, **z_size**: size of one pixel in y direction and z direction in µm | ||
| + | * **y_center**, **z_center**: pixel coordinates of the beam center (usually taken from [[software:dioptas|Dioptas calibration]]: ''y_center = Dioptas Center X'' and ''z_center = 2048 - Dioptas Center Y'' and can be [[processing:compute_gvectors|refined using ImageD11]]) | ||
| + | * Supplementary optional parameter **cell_sg**. You can also provide your material space group. This has to be done manually with a text editor and can not be done using the Graphical User Interface. If the space group is provided, ImageD11 will use xfab for generate unique hkls. | ||
fileformat/prm.1574948386.txt.gz · Last modified: 2019/11/28 13:39 by smerkel
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