MA02

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MA02 horizontal field magnet

Above 150 K, the liquid He consumption get very high. For a short time 300 K is possible, but not recommended.

Dark Angles

MA02/MA02 dark angles.png

Vertical opening

Vertically, the access to the sample is a 30 mm split with 282 mm diameter. This means for example a 10 mm sample can be fully illuminated with a horizontal beam when tilting +- 4 deg.

Specifications

maximum central field 1.8T
max current 101.6 Amp
Field/Current 0.0177 T/A
homogeneity (sphere 10mm diam) 2pp100
magnet clear bore diam35mm
Split between former halves30mm
Split angles 0deg
Switch heater current 75 mA
CoilSeparation 1 Al ring
Distance field center to cryo base 19 cm

ramp rates

field range in T rate in T/min
0-1.24 0.1063
1.24-1.6 0.0531
1.6-1.8 0.0177

Pending Issues

The LHe consumption is higher than specified, but acceptable (hold time ~ 2 days). It seems, that care has to be taken during cooldown, as under some circumstancies, the consumption gets very high (hold time less than 1 day).

ma02a.jpg ma02b.jpg

Attachments:  MA02 dark angles.png  ma02b.jpg  ma02a.jpg 
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This page last changed on 27-Mar-2025 15:55:57 UTC by 129.129.156.74.