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JSPWiki v2.0.52


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Cryomagnets

Please read also the rules concerning superconducting magnet experiments
and the Introduction on cryogenic handling
Our standard thread on all systems is M6 female.

NameDescriptionFieldTemp.d
(without
dilution)
a
[mm]
b
[mm]
l
[mm]
g
[mm]
h
[mm]
200 gauss
line[m]
MA15Oxford Instr. Cryomagnet vert. 14.9 T 1.6...300 K
>80 mK[1]
20 14...90 139 1294 (1454)49.51078(+2)1.89
MA11Oxford Instr. SANS Cryomagnethor. 11 T 1.8...300 K
>80 mK[1]
22 75...100[3]541302 (1462)62 1080(+2)
MA09Oxford Instr. Cryomagnet vert. 9 T 1.8...300 K
>80 mK[1]
48 93...137[3]581247 55 1.14
MA7 Oxford Instr. Cryomagnet hor. 6.8 T 1.8...300 K
>80 mK[1]
48 35...90 69 1357 (1517)49.5 1.19
MA6 Oxford Instr. Cryomagnet vert. 6 T 1.8...300 K
>80 mK[1]
30 40...90 80 1309 (1469*)49.51078(+2)0.70
MA02Oxford Instr. Cryomagnet hor. 1.8 T 1.8...150 K[4]
>100 mK[1]
28 0...56 93 1245 (1405) 55 968(+2)
MA4 Thor Cryomagnet vert. 4 T 4.2...100 K 24.537...7129 1286 24.5

where
d: sample space diameter (reduce by 2-4 mm for max. sample diameter)
a: distance from thread to beam center
b: allowed size below beam center
l: length from top flange to the center of the sample (when used with a rotation unit, add 160)
g: diameter of upper part of sample stick space
h: length of upper (larger) part of sample stick space (+2mm when warm)
*: MA6 with rotation, measured on TriCS (geometrical: 1464)
The allowed sample diameter in combination with a dilution can be found here

[1] in combination with dilution sticks
[3] as we have adapter pieces, it is recommended to make the sample holder with a distance from thread to the sample center between 37 and 50 mm
[4] for a short time 300 K is possible, but not recommended due to very high liquid He consumption

Stray fields

The stray fields can be calculated from the 200 gauss line distance. The stray field follows a r^-3 rule, what means that at half the distance you have a 8 times higher field.

For vertical magnets, this is the vertical distance. At the same distance in horizontal direction, the stray field is 100 gauss (0.01 Tesla).

For horizontal magnets, this is the distance in field direction. At the same distance in vertical direction or perpendicular to the field, the stray field is 100 gauss (0.01 Tesla).

SampleMountingInstructions

Magnetic Forces

Electromagnets

InstrumentsDescriptionField
TASP Guide field magnet vert. 20 mT
hor. 2 mT
SANS-I, SANS-II, AMORElectromagnet hor. < 1.5 T


This particular version was published on 12-Feb-2016 15:54:19 UTC by MarkusZolliker.