How the distance has to be measured. In this example the distance is around 400 mm.
max.Force
| horizontal | 500N |
| vertical | 1000N |
| Instrument | Allowed maximum field [Tesla] | Conditions |
|---|---|---|
| AMOR | 4 | field perpendicular beam |
| AMOR | 6.8 | field parallel beam |
| RITA-II | 4 ... 6.8 | see below |
| SANS-I | 6.8 / 6.2 (full field) | with spin flipper only when field perpendicular to beam |
| SANS-II | 6.8 / 6.2 (full field) | |
| TASP | 6.8 | see below (A3 does not move > 4 Tesla) |
| EIGER | 6.8 / 6.2 (full field) | goniometer removed |
| ZEBRA | 6.8 / 6.2 (full field) | L1 = 1500 mm, L2 = 785 mm (1D detector) |
| ZEBRA | 5 / 5 | L1 = 1000 mm, L2 = 785 mm (1D detector) |
Goniometer removed.
Provisional force measuremnents on RITA-II have shown that
the operation of MA7 on Rita-II is allowed:
* at a distance of more than 680 mm or a2 angles < 42.7 the analyser tank touches the wall at a4 ~= 45
For any other configuration force tests have to be redone.
How the distance has to be measured.
In this example the distance is around 400 mm.
Force tests after major instrument upgrade 2023-11-21:
Allowed field when perpendicular to beam: 6.8 Tesla (forces 300 N horizontally, 480 N vertically)
Field parallel to field: 3 Tesla (horizontal force 280 N, guide field is moving, not secured enough! this should be fixed)
Goniometer removed.
Beryllium Filter Distance 27 cm (see photo)
Sample table - Monochromator - 73 cm
| A2 | a4 | Allowed field |
|---|---|---|
| -92 < A2 < -41 (Ei=14.7 meV) | <= 119 | 6.8 Tesla |
WARNING: Motor A3 may not move with a field > 4 Tesla
This data is derived from the force test 7. July 2015:
4.8 Tesla, horizontal force 150 N (towards Beryllium filter), vertical force 180 N.
Allowed up to maximum field independend of the field direction.
With spin flipper only when field perpendicualr to beam and in asymmetric mode. Other configurations with spin flipper have to evaluated.
Force measurements (without spin flipper):
| field direction | field | horizontal force | vertical force |
|---|---|---|---|
| parallel to beam | 4.9 Tesla | 80 N | 340 N |
| perpendicular to beam | 4.9 Tesla | 110 N | 180 N |
| 4.9 T perpendicular to beam | 300 N vertical | 140 N horizontal |
| 4.9 T parallel to beam | 300 N vertical | 60 N horizontal |