sinqwiki: MA11Restrictions

MA11Restrictions

max. allowed Force

horizontal	200N
vertical	500N

Instrument	field direction parallel to beam	field direction perpendicular to beam	Conditions
SANS-I	11 Tesla	11 Tesla	without spin flipper
SANS-II	11 Tesla	11 Tesla
AMOR	2 Tesla *	*
RITA-II	11 Tesla	11 Tesla	45 deg < a2 < 100 deg, d = 450 mm

(*) to be reevaluated, ask Markus Zolliker

On all other Intruments, MA11 can not yet be used.

Remarks for SANS-II

Force measurements (29.5.08):

8 kg at 4 Tesla perpendicular
8 kg at 5 Tesla parallel

It seems that most of the force is induced by a steel ring on the valve before the detector tank.

With new detector gate valve (18.8.2015), at 7.8 Tesla:
horizontal (beam direction) < 50 N, ~ 80 N (perpendicular), 220 N vertical
extrapolate forces at 11 T: 160 N horiz., 440 N vertical

Remarks for RITA-II

Monochromator sample distance at least 450 mm

MA15RitaRestrictions/SampleTableDistance.jpg
How the distance has to be measured. In this example the distance is around 400 mm.

Force measurements 14.7.2009 at 8 Tesla:

10 kg horizontal
< 5 kg vertical

Extrapolation for 11 Tesla: 20 kg