Radiation dominated implosion

TL;DR

This paper analyzes a radiation-dominated implosion model for inertial confinement fusion, focusing on direct ignition with a laser pulse, neglecting compression, and calculating necessary pulse parameters.

Contribution

It introduces a simplified model for direct ignition in inertial confinement fusion without an ablator, emphasizing laser pulse characteristics.

Findings

Calculated the necessary pulse length for ignition

Determined the required pulse strength

Assumed negligible reflectivity and constant absorptivity

Abstract

Inertical Confinement Fusion configuration model is analized for direct ignition without an ablator. The compression of the target pellet is neglected and rapid volume ignition is achieved by a laser pulse, which is as short as the penetraton time of the light across the pellet. The reflectivity of the target is assumed to be negligible, and the absorptivity is constant so that the light pulse can reach the opposite side of the pellet. The necessary pulse length and pulse strength is calculated.