Specimen Current-EBIC amplifier

This specimen current-EBIC amplifier is designed to operate with the small currents absorbed by the sample in the SEM. It not only gives accurate absorbed current measurements, but will also provide images over a wide range of probe currents. TV rate images are possible at the higher probe currents, and low noise images can be produced at slow scan rates. Its differential input capability permits the specimen to be floated by up to 5 volts from ground.