[ Identification | Description | Input parameters | Links ]
Foil_flipper_magnet ComponentESCRIPTION A magnet with a spin-flip foil inside This component models a magnet with a constant magnetic field and a slanted magnetized foil inside acting as a spin-flipper. This arrangement may be used to target the geometry of a Spin-Echo SANS instrument (Rekveldt, NIMB, 1997 || Rekveldt, Rev Sci Instr. 2005). In its most basic form a SE-SANS instrument nrelies on inclined field regions of constant magnetic field, which can be difficult to realize. Instead it is possible to emulate such regions using a magnetized foil. In this component th emagntzied foil is modelled as a canted (by the angle phi) mathematical plane inside a region of constant magnetic field of dimensions (xwidth,yheight,zdepth). Furthermore, exponetially decaying stray fields from the constant field region may be specified by giving parameters (Bxwidth,Byheight,Bzdepth) > (xwidth,yheight,zdepth).
| Name | Unit | Description | Default | |
| field_function | const_magnetic_field | |||
| stray_field_function | NULL | |||
| xwidth | m | width of the magnet | ||
| yheight | m | height of the magnet | ||
| zdepth | m | thickness of the magnet | ||
| Bxwidth | m | width of the B-field of thev component | -1 | |
| Byheight | m | height of the B-field of the component | -1 | |
| Bzdepth | m | thickness of the B-field of the component | -1 | |
| phi | rd | angle (from the xz-plane) of the foil-spinflipper inside the magnet | 0.0 | |
| foilthick | um | Thickness of the magnetized foil | 0.0 | |
| Bx | T | Parameter used for x composant of field. | ||
| By | T | Parameter used for y composant of field. | ||
| Bz | T | Parameter used for z composant of field. | ||
| foil_in | 1 | |||
| verbose | 0 |
| AT ( | , | , | ) RELATIVE | |||
|---|---|---|---|---|---|---|
| ROTATED ( | , | , | ) RELATIVE |
Foil_flipper_magnet.comp.
[ Identification | Description | Input parameters | Links ]
Generated on 2024-01-03 11:47:43