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Solenoid Overview

The superconducting solenoid magnet will surround the interaction area and all detectors of the PANDA target spectrometer (except the muon counters which will be interleaved in the segmented flux return yoke) and provide a 2T field. A particular challenge is the accommodation of the target feed pipe by a split coil design. Other challenges include requirements on: field homogeneity and radial components, detector integration and access, stray fields, forces and and alignemet, to name only a few. The main parameters are summarised in the table below.

Item Value
Central field 2.0 T
Fiel homogeneity ≤2%
Norm. radial field integral ≤2 mm
Inner bore 1.9 m
Cold mass parameters
Length 2.7 m
Energy 20 MJ
Current 5000 A
Weight 4.5 t
Cable cross section 3.4 × 2 mm2
Current density 59 A/mm2
Yoke parameters
Length 4.9 m
Outer radius 2.30 m
Iron layers 13
Total weight 300 t

View of the solenoid (1/4 cut for visibility)
View of the solenoid from the upstream side (1/4 cut for visibility). Grey: cryostat, inner red parts: coils, blue: flux return yoke, red bars: support structure.

Schematic view of coil and cryostat highlighting suspensions
Semi-transparent view of coil and cryostat. Green: outlines of the coil former, red and black: supporting structures, grey: outer cryostat housing.


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Topic attachments
I Attachment Action Size Date Who Comment
CryoView-suspended_Renzo0906_01_small.pngpng CryoView-suspended_Renzo0906_01_small.png manage 88.0 K 20 Oct 2009 - 16:04 IntiLehmann Schematic view of coil and cryostat highlighting suspensions
Solenoid_3D_upstream_small.pngpng Solenoid_3D_upstream_small.png manage 83.8 K 20 Oct 2009 - 16:10 IntiLehmann View of the solenoid (1/4 cut for visibility)
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Topic revision: r3 - 20 Oct 2009, IntiLehmann
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