  The radiation symmetry and laser-plasma instabilities (LPIs) inside the
conventional cylindrical hohlraum configuration are the two daunting challenges
on the approach to ignition in indirectly driven inertial confinement fusion.
Recently, near-vacuum cylindrical hohlraum (NVCH), octahedral spherical
hohlraum (SH) and novel three-axis cylindrical hohlraum (TACH) were proposed to
mitigate these issues. While the coupling efficiency might still be a critical
risk. In this paper, an advanced three-axis elliptical hohlraum (TAEH) is
proposed to make a compromise among these hohlraum performance. Preliminary
simulations indicate that the TAEH (with a case-to-capsule ratio, CCR=2.8)
could provide excellent radiation symmetry during the thorough laser pulse of
the high-foot drive, comparable to the ones inside the SH (CCR=5.1) and TACH
(CCR=2.2). The filling time of plasma affecting the LPIs is between those of SH
and TACH, and about 1.5 times of that in the ignition hohlraum Rev5-CH of NIC
and close to the one inside the NVCH (CCR=3.4). In particular, the coupling
efficiency is about 22%, 29% and 17% higher than the one inside the NVCH, SH
and TACH, respectively. It would be envisioned that the proposed hohlraum
configuration merits consideration as an alternative route to indirect-drive
ignition, complementary to the traditional cylindrical hohlraum and the
proposed recently novel hohlraums.
