  A novel ignition hohlraum for indirect-drive inertial confinement fusion is
proposed, which is named as three-axis cylindrical hohlraum (TACH). TACH is a
kind of 6 laser entrance holes (LEHs) hohlraum, which is made of three
cylindrical hohlraums orthogonally jointed. Laser beams are injected through
every entrance hole with the same incident angle of 55{\deg}. The view-factor
simulation result shows that the time-varying drive asymmetry of TACH is no
more than 1.0% in the whole drive pulse period without any supplementary
technology such as beam phasing etc. Its coupling efficiency of TACH is close
to that of 6 LEHs spherical hohlraum with corresponding size. Its
plasma-filling time is close to typical cylindrical ignition hohlraum. Its
laser plasma interaction has as low backscattering as the outer cone of the
cylindrical ignition hohlraum. Therefore, the proposed hohlraum provides a
competitive candidate for ignition hohlraum.
