Solenoids for Spin-Echo-Spectrometer

After a sucessful conduction of a feasibility study for a pair of superconducting solenoids for a neutron-spin-echo spectrometer of the German Research Centre Jülich (FZJ) and after evaluation of the studies BNG was chosen to be the manufacturer of these magnets and received the contract from the customer at the beginning of 2006.

As this magnet system was offered as a functional system, BNG is responsible for the entire design. The quench computation, the cryo-design, the cryostat, and the support structures are completely designed by BNG.

The magnet system includes a position monitoring system, which is able to measure the position of the cold mass in relation to the cryostat shell with a precision of ± 2 µm. The output data of this system can be used to operate magnetic field correction devices.

The main part of the spectrometer consists of two identical magnet systems which are made of active shielded superconducting single strand windings. The conductor is a NbTi-superconductor which is operated with a current of about 300A. The magnets will be completely cooled by pulse-tube cryo coolers without any liquid helium.

Technical Data:

Film of the Jülich Research Center about the Inauguration of the Neutronen Spin-Echo Spectrometer

Link to the webside

back