Oxford Instruments shows extended capabilities of Paragraf graphene sensors Paragraf continues to push performance boundaries with its graphene Hall Effect sensors with Oxford Instruments employing a modified version of the Paragraf GHS09CC sensor device to carry out measurements at temperatures and magnetic field strengths claimed to be beyond the scope of any other sensing method. The test set-up saw the modified Paragraf GHS09CC device exposed to a 14T magnetic field. This was applied via an Oxford Instruments’ superconducting solenoid magnet. The temperature level was taken down below 100mK, using the newly released Proteox dilution refrigerator. Normally under these harsh operating conditions, acquisition of field strength data would be impossible. The low temperatures involved would lead to quantum effects that would saturate the sensor. Even before reaching these extremes, other anomalies would impact upon sensor linearity, thereby making accurate measurements very difficult to achieve.