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Superconducting magnets (SCM)

Superconducting magnets (SCM)

Space-saving design with a compact superconducting magnet.
Greater flexibility of installation layout of the instrument is possible with the new compact magnets that have a smaller stray magnetic field.

Features

Superconducting magnets of JJ Series

 

The magnets of JJ Series are compact, low helium-consumption magnets equipped with newly designed superconducting wires and cryostats. The JJ Series has a smaller footprint and lower ceiling height requirements than the previous models. The consumption of liquid helium has been reduced and the filling interval has been extended. In addition, the JJ superconducting magnets are equipped with an extra coil that provides the highest level of isolation from fluctuations of external magnetic fields. Therefore, even if external magnetic field fluctuates, the magnetic field at the center of the magnet is virtually unaffected and extremely stable.

Space-saving design with a compact superconducting magnet

Greater flexibility of installation layout of the instrument is possible with the new compact magnets that have a smaller stray magnetic field

  • The installation space for the instrument is smaller and the minimum ceiling height is reduced

  • Possible to install several NMR instruments near each other

  • Longer time between liquid helium refills

 

400 MHz Year Hold Magnet (400JJYH)

Year Hold Magnet with greatly improved retention time of liquid helium

New 400 MHz Year Hold Super Conducting Magnet (400JJYH) has a greatly improved retention time of liquid helium while keeping its compact size as is. 400JJYH is a newly-developed magnet of reduced frequency of helium refill to once every year, while keeping cryostat compact. Newly-developed super conducting magnet has smaller stray magnetic field from the inside of the magnet to the outside. Combination with a compact spectrometer unit of ECZ NMR Spectrometer enables freer installation layout and placement of all units in a small area. In addition, as the design of the magnetic shield of SCM not only reduces the stray magnetic field, but also the influences from outside, installation of several NMR systems nearby is possible. It can offer a more reliable, safer, and comfortable use of the NMR system.

  • Refill frequency of liquid helium is now once a year

  • Compact size same as regular 400 MHz magnet

  • Freer layout of installation room

The magnets which can be available by cold shipment*

The superconducting magnets of JJ Series can be transported with liquid nitrogen or liquid helium in the cryostat, i.e., in a cooled state (cold shipment). In order to make cold-shipment possible, the strength of the composite reinforced rods that support the He and N2 vessels inside the SCM has been increased. These rods are designed to withstand the vibrations during transportation, and even large vibrations during earthquakes.

  • The transportation with liquid nitrogen or liquid helium is possible.

  • The internal structure is robust for vibration.

  • The cold shipment service is only available in Japan.

Earthquake-resistant magnets

JEOL's magnets comprise a highly reliable vibration isolator that has prevented SCMs from tipping over in major earthquakes in the past. The combination of the low center of gravity with the base plate and non-contact anchor bolts minimize damage in the event of a disaster.

Space-saving design with a compact superconducting magnet

Greater flexibility of installation layout of the instrument is possible with the new compact magnets that have a smaller stray magnetic field

  • The installation space for the instrument is smaller and the minimum ceiling height is reduced

  • Possible to install several NMR instruments near each other

  • Longer time between liquid helium refills

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