Abstract
Symmetrization of the radiation field inside hohlraum targets for indirectly driven heavy ion beam inertial confinement fusion (ICF) is investigated numerically. The considered targets consist of a casing, enclosing the spherical fuel capsule, and a few cylindrical radiators, schematically representing ion beam irradiated converters. Radiation absorption and remission is dealt with as in the paper by Murakami and Meyer-ter-Vehn, but with the geometry extended to 3-D, and with consideration for the finite size of the radiators. It is found that, for practical casing-to-capsule area ratios (of the order of 10) and converter aspect ratios, two converters cannot provide the uniformity required for ICF. A spherical casing with six converters (placed in couples along the axes of a cartesian coordinate system) could instead illuminate a capsule with non-uniformity well below 2%, which could satisfy the ICF requirements. The effects of changing the area ratio, the size and position of the converters and the geometry of hohlraum are also discussed.
Citation Formats
Temporal, M, and Atzeni, S.
3-D study of radiation symmetrization in some indirectly driven heavy ion ICF targets.
Italy: N. p.,
1991.
Web.
Temporal, M, & Atzeni, S.
3-D study of radiation symmetrization in some indirectly driven heavy ion ICF targets.
Italy.
Temporal, M, and Atzeni, S.
1991.
"3-D study of radiation symmetrization in some indirectly driven heavy ion ICF targets."
Italy.
@misc{etde_10117177,
title = {3-D study of radiation symmetrization in some indirectly driven heavy ion ICF targets}
author = {Temporal, M, and Atzeni, S}
abstractNote = {Symmetrization of the radiation field inside hohlraum targets for indirectly driven heavy ion beam inertial confinement fusion (ICF) is investigated numerically. The considered targets consist of a casing, enclosing the spherical fuel capsule, and a few cylindrical radiators, schematically representing ion beam irradiated converters. Radiation absorption and remission is dealt with as in the paper by Murakami and Meyer-ter-Vehn, but with the geometry extended to 3-D, and with consideration for the finite size of the radiators. It is found that, for practical casing-to-capsule area ratios (of the order of 10) and converter aspect ratios, two converters cannot provide the uniformity required for ICF. A spherical casing with six converters (placed in couples along the axes of a cartesian coordinate system) could instead illuminate a capsule with non-uniformity well below 2%, which could satisfy the ICF requirements. The effects of changing the area ratio, the size and position of the converters and the geometry of hohlraum are also discussed.}
place = {Italy}
year = {1991}
month = {Dec}
}
title = {3-D study of radiation symmetrization in some indirectly driven heavy ion ICF targets}
author = {Temporal, M, and Atzeni, S}
abstractNote = {Symmetrization of the radiation field inside hohlraum targets for indirectly driven heavy ion beam inertial confinement fusion (ICF) is investigated numerically. The considered targets consist of a casing, enclosing the spherical fuel capsule, and a few cylindrical radiators, schematically representing ion beam irradiated converters. Radiation absorption and remission is dealt with as in the paper by Murakami and Meyer-ter-Vehn, but with the geometry extended to 3-D, and with consideration for the finite size of the radiators. It is found that, for practical casing-to-capsule area ratios (of the order of 10) and converter aspect ratios, two converters cannot provide the uniformity required for ICF. A spherical casing with six converters (placed in couples along the axes of a cartesian coordinate system) could instead illuminate a capsule with non-uniformity well below 2%, which could satisfy the ICF requirements. The effects of changing the area ratio, the size and position of the converters and the geometry of hohlraum are also discussed.}
place = {Italy}
year = {1991}
month = {Dec}
}