SC22 Magnetic Field Cancelling System
Today's high performance electron beam tools are very sensitive to changing ambient magnetic fields. The fields move the beam causing loss of resolution and measurement accuracy. The SC22 system reduces the ambient AC field and restores the resolution and accuracy.
Manufacturer
Spicer Consulting
Spicer Consulting has built a world-wide reputation in magnetic field cancelling for electron microscopes and similar instruments. Today, working with equipment manufacturers and users alike, the company is recognised as an industry expert in maximising the performance of electron microscopes, electron beam lithography systems, CD-SEM and focused ion beam tools. Spicer Consulting magnetic field cancelling systems protect sensitive equipment in the world's leading laboratories, universities and semiconductor manufacturing plants, as well as in the test facilities of electron and ion beam equipment manufacturers. Its magnetic field, vibration and acoustic analysis systems have been adopted as standard equipment for the conduct of site surveys by leading equipment manufacturers.

Key Features
- Protects your investment in electron beam technology by stabilising the magnetic field environment
- Cancels and monitors the AC field
- Low cost, high performance system
- Intelligent user interface
- Automated set up
- Cancels AC fields from 2.5 Hz to 5 kHz 50 x field improvement at 60Hz
- Full 3 axis (X, Y, Z) system
- Up to 60 mG (6.0 μT) pk-pk range
- Adapts to field changes within 100 μs
- Supports dual sensors for TEMs and high gradient fields
- USB monitoring port

Overview
Today's high performance electron beam tools are very sensitive to changing ambient magnetic fields. The fields move the beam causing loss of resolution and measurement accuracy. The SC22 system reduces the ambient AC field and restores the resolution and accuracy. The SC22 system comprises a Magnetic Field Control Unit, an AC Magnetic Field Sensor and three multicore cables, which are installed in the room where the field is to be cancelled.
Each power amplifier in the control unit drives a current through its cable to create a field of the opposite sign to the change in ambient field. The magnetic field sensor measures the resulting field and real time negative feedback reduces the ambient field by the loop gain of the system. The system is dynamic, automatically responding to field changes within 100 μs. AC Line fields (50/60 Hz) are reduced by 50 x.
The SC22 does not cancel DC field changes from sources such as elevators, trains and traffic. The larger SC24 system is available to cancel both AC and DC fields.
Product range
SC22 Magnetic Field Cancelling System
SC24 Magnetic Field Cancelling System
SC26 Magnetic Field Cancelling System
Downloads
If you would like to learn more about Magnetic Field Cancelling Systems, contact our experienced technical team today. We would be happy to help you find the right solution for your needs. Contact us today!