关键词：融合；勾形磁场；坐月子
摘 要：An Inertial Electrostatic Confinement Fusion (IECF) device is a compact fusion proton/neutron source with an extremely simple configuration, high controllability, and hence high safety. The common IECF device has constructed with an inner grid cathode. With this configuration, accelerated ions which move toward the cathode have probability of hitting the cathode to be lost, To increase neutron production rate (NPR) in this device, a grid-like rod cathode with a space at the center has been used in this experiment to increase a probability of accelerated ions to collide with each other at the center and this may increase a fusion rate. Furthermore, a cusp magnetic field, generated by small permanent magnets placed around chamber wall, is also used in this experiment in order to trap electrons and force to circulate near the anode, which will contribute to the generation of more ions near anode. Moreover, pulsed input mode has assigned in this experiment. An operation in pulsed mode is allowed us to expand experiment condition to a higher current range of a few amperes without damaging cathode and chamber wall.