Diff: TasUBMatrix

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JSPWiki v2.0.52


Difference between version 38 and version 33:
At line 9 added 6 lines.
+
+ {{> addauxref ''qh qk ql''}}
+
+ Define the vectors for the scattering plane.
+
+
Lines 13-15 were replaced by line 19
- the current motor positions are used. If the given
- qhkl triple already exists, its list entry is overwritten.
- If not, a new entry is made.
+ the current motor positions are used.
Line 22 was replaced by lines 26-28
- is a help during setup of the instrument or in powder mode. The sequence:
+ is a help during setup of the instrument or in powder mode.
+
+ The sequence:
Line 24 was replaced by line 30
- ref clear
+ ref clear all
Lines 26-27 were replaced by lines 32-33
- ref aux ax ay az
- ref aux bx by bz
+ addauxref ax ay az
+ addauxref bx by bz
Lines 30-31 were replaced by lines 36-37
- with ax, ay, az being the first plane vector and bx, by, bz being the second plane vectors achieves
- creates a UB matrix which allows to drive QE positions and qm. But be aware that a3, sgu and sgl values
+ with ax, ay, az being the first plane vector and bx, by, bz being the second plane vector
+ creates a UB matrix which allows to drive Q positions and qm. But be aware that a3, sgu and sgl values
Line 104 was replaced by line 110
- Find the peak 2 0 0 and optimize it
+ > MAKEUBFROMCELL
Line 106 was replaced by lines 112-116
- ...
+ MAKEUBFROMCELL builds a UB matrix from the cell only. With this you can drive to 2 0 0
+
+ > drive qh 2 0 0
+
+ This will get you the correct two-theta == a4. You have to search the peak in a3, sgu and sgl and optimize it.

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