The invention discloses a lattice-structured
electron drift tube. The lattice
cathode of the
electron drift tube converts X-rays radiated by a target into
electron pulse strings distributed in a spatial array, the
electron pulse strings drift at a high speed under the action of a gradual change
electric field with non-interfering spatial arrays, and the spatial scale of the
electron pulse stringsin the drift is fully guaranteed. The
electron pulse strings pass through a rear-end grid mesh distributed in an equal-ratio space array, is multiplied by a microchannel plate and then bombards a fluorescent screen to emit light, and the
electric signal is converted into an optical
signal again, and the electron pulse strings are in a uniform
magnetic field generated by a magnetic coil with a shielding shell in the whole process. The
electron drift tube can obviously improve the spatial resolution characteristic in an electron uniform-speed drift region, furthest reduce the spatial transversecrosstalk of the electron pulse strings by utilizing the
magnetic field constraint, achieve spatial fidelity and a
large dynamic range, contribute to promoting the development of an ultrahigh time-resolution two-dimensional
imaging diagnosis technology, and have important significance for improving the precision level of
laser inertial constraint fusion diagnosis.