Quality factor enhancement of detection electronics of Penning trap at cryogenic temperature

At VECC, a cloud of trapped electrons is stored in a Penning trap, and the weak image current induced by these electrons on the trap electrodes is detected using resonant detection methods. It was observed that the loaded quality factor of the detection unit increased to approximately 5000 by adjusting the gate bias of a low-noise amplifier in the cryogenic environment (4 K). The entire detection electronics performed satisfactorily under an extreme magnetic field up to 5 Tesla.