Technical Design Report Super Fragment Separator

DRAFT
Measurements planned for each superconducting magnet are:
• warm magnetic measurements in industry,
• training of the magnet,
• power test at different ramp rates for pulsed magnets,
• integral loss measurement (voltage-current and calorimetric methods),
• magnetic measurements,
• insulation and electrical integrity tests,
For normal conducting magnets the following measurements have to be performed:
• geometry tests in industry
• warm magnetic measurement in industry
• insulation and electrical integrity tests in industry,
• pre-series and special magnet fully tested at the GSI lab
Table 2.4.40: Total number of normal and superconducting magnets for Super-FRS. All nc magnets are
radiation resistant magnets.
Super-FRS Magnet types no. of magnets
nc main magnets (dipoles): 6
nc main magnets (quadrupoles): 3
nc correctors,steeres. 2
nc special magnets (septa, ...) 0
sc main magnets (dipoles and quadrupoles) 28
sc main magnets (dipoles and quadrupoles) 68
sc correctors (mulipole, steering, hexapole,..) 94
Magnetic measurements are performed to ensure the required field and field quality of each individual
magnet. The quantities to be measured depend on the type of magnet:
• Dipole:
o ∫ Bdl
, the magnetic field B integrated over the magnet length l
o field direction
o field quality
• Quadrupole:
o ∫ Gdl
with the magnetic field gradient G integrated over the magnet length l
o axis
o field direction
o field quality
• Corrector magnets
o dl
∫ Cn with Cn the n th harmonic integrated over the magnet length l
o axis
o field direction
o field quality
Ramped magnets must be measured in AC and DC mode. The time delay until the field has stabilized
has to be measured for pulsed magnets as well, i.e. magnets which must reach their excitation
level during a short time period (in the order of a second).
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