| At line 2 added 1 line. |
| + |
| Line 9 was replaced by lines 10-14 |
| - {{> PEAK ''qh qk ql a4 a3 sgl sgu ki kf''}} |
| + |
| + {{> addauxref ''qh qk ql''}} |
| + |
| + Define the vectors for the scattering plane. |
| + |
| At line 10 added 2 lines. |
| + {{> REF ''qh qk ql a3 a4 sgl sgu Ei Ef''}} |
| + |
| Lines 12-14 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 17 was replaced by lines 22-41 |
| - {{> PEAK CLEAR ''peak''}} |
| + {{> REF AUX ''qh qk ql''}} |
| + Add an auxiliary reflection to the list of reflections. A4 is calculated from the cell |
| + constants, the current ei and ef values are used. A3 is left alone or is calculated to |
| + have the right angular difference to the previous reflection. Using auxiliary reflections |
| + is a help during setup of the instrument or in powder mode. |
| + |
| + The sequence: |
| + {{{ |
| + ref clear all |
| + cell aa bb cc alpha beta gamma |
| + addauxref ax ay az |
| + addauxref bx by bz |
| + makeub 1 2 |
| + }}} |
| + 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 |
| + are still invalid. |
| + |
| + |
| + {{> REF CLEAR ''peak''}} |
| Line 21 was replaced by line 45 |
| - {{> PEAK CLEAR ALL}} |
| + {{> REF CLEAR ALL}} |
| Line 25 was replaced by line 49 |
| - {{> PEAK}} |
| + {{> REF}} |
| Line 29 was replaced by line 53 |
| - {{> MAKE ''peak1 peak2''}} |
| + {{> MAKEUB ''peak1 peak2''}} |
| Line 42 was replaced by lines 66-71 |
| - {{> MAKEUB ''peak1 peak2'' CHEAT}} |
| + {{>MAKEUBFROMCELL}} |
| + |
| + Calculate and activate a UB which has been calculated from the cell constants alone. |
| + This is useful to get a4 when no reflection has yet been found to calculate a proper UB. |
| + |
| + {{>MAKEAUXUB qh qk ql}} |
| Lines 44-45 were replaced by lines 73-75 |
| - The same as above, but the cell constants a, b and c are scaled in |
| - order to make ''peak1'' perfectly fitting. |
| + Calculate a UB matrix from the first reflection and an auxiliary second reflection specified through the miller |
| + indices qh , qk, ql. The auxiliary reflection will have the same angles as the first reflection, except a3 and a4 will |
| + be adjusted to match the requirements from the crystalls geometry. |
| At line 46 added 4 lines. |
| + [Markus Zolliker]: ''there should be a an easy way helping |
| + the user to correct the cell constants (for example due to |
| + thermal contraction) according to the measured peak. '' |
| + |
| At line 50 added 17 lines. |
| + !Out Of Plane Operation |
| + |
| + This formalism allows to drive out of the scattering plane using the tilt motors of the sample stage. Some cryostats cannot stand this. |
| + Therefore driving out of plane can be switched off and on. |
| + |
| + {{> TASUB OUTOFPLANE 1}} |
| + |
| + This command switches out of plane operation __on__. |
| + |
| + {{> TASUB OUTOFPLANE 0}} |
| + |
| + This command switches out of plane operation __off__. |
| + |
| + {{> TASUB OUTOFPLANE}} |
| + |
| + lists the current value of the outofplane variable |
| + |
| Line 59 was replaced by line 110 |
| - Find the peak 2 0 0 and optimize it |
| + > MAKEUBFROMCELL |
| Line 61 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. |
| Line 65 was replaced by line 120 |
| - > PEAK 2 0 0 |
| + > REF 2 0 0 |
| Line 67 was replaced by lines 122-126 |
| - A 2.00 0.00 0.00 65.31 -87.21 1.25 -5.22 |
| + 1 2.00 0.00 0.00 65.31 -87.21 1.25 -5.22 |
| + |
| + > makeauxub 0 4 4 |
| + > dr qh 0 4 4 |
| + Make an axiliary UB and drive to the theoretical position for 0 4 4 |
| Line 75 was replaced by line 134 |
| - > PEAK 0 4 4 |
| + > REF 0 4 4 |
| Line 81 was replaced by line 140 |
| - > PEAK |
| + > REF |
| Line 123 was replaced by line 182 |
| - > PEAK 3 3 3 |
| + > REF 3 3 3 |
| Line 125 was replaced by line 184 |
| - C 3.00 3.00 3.00 82.32 -31.25 2.26 -3.22 |
| + 3 3.00 3.00 3.00 82.32 -31.25 2.26 -3.22 |
| Lines 131-133 were replaced by lines 190-192 |
| - A 2.00 0.00 0.00 65.31 -87.21 1.25 -5.22 2.03 0.00 0.00 |
| - B 2 0.00 4.00 4.00 99.45 20.39 4.25 -1.22 0.02 3.95 4.03 |
| - C 1 3.00 3.00 3.00 82.32 -31.25 2.26 -3.22 3.00 3.00 3.00 |
| + 1 2.00 0.00 0.00 65.31 -87.21 1.25 -5.22 2.03 0.00 0.00 |
| + 2 B 0.00 4.00 4.00 99.45 20.39 4.25 -1.22 0.02 3.95 4.03 |
| + 3 A 3.00 3.00 3.00 82.32 -31.25 2.26 -3.22 3.00 3.00 3.00 |
LIN