Development of target fabrication for laser-driven inertial confinement fusion at research center of laser fusion

Abstract

As the basic conditions for laser inertial confinement fusion (ICF) research, the targets are required to be well specified and elaborately fabricated. Because of the characteristics of the targets, the research and fabrication process is a systematically tough task, which needs fundamental and deep insights into film deposition, mechanical machining, precise measurement and assembly, etc. As a result, knowledge of material science, physics, mechanical as well as electronics is a necessity for target researchers. In this paper, we give introductions to the state of art on target fabrication for ICF research at Research Center of Laser Fusion (RCLF) in China.

Glassy Microspheres for Energy Applications

“…Typically, 8 µm thick single layered GDP shells with diameter of 450–540 µm were manufactured. Figure 7 summarizes the process [ 122 ]. It can be noted that the basic PAMS/GDP process for production of ICF target mandrels had been already tested in 1997 [ 118 ].…”

Review of HPLSE special issue on target fabrication

“…A range of papers that cover the design of the targets from a review of the developments in China [1] to recent work in the United States including the manufacture of 2 C. Spindloe et al…”

“…1. Development of target fabrication for laser-driven inertial confinement fusion at research center of laser fusion [1] 2. Permeation fill-tube design for inertial confinement fusion target capsules [2] 3.…”

“…Submissions for the special issue covered the invited topics and also branched out into broader areas and capabilities. Papers described research on: techniques for the production of targets for inertial confinement fusion (ICF) [1][2][3][4][5][6][7][8] , micro-assembly [3,8,9] , liquid targets [10] , systems for delivery of targets at high repetition rates [5,11,12] , fundamental target fabrication processes [2,4,[13][14][15][16] , low density materials [15,17,18] and metrology methods [7,18,19] . In addition, there were three important review papers [1,5,12] that give an excellent snapshot of the current capabilities across the world.…”

Theoretical Investigation of Gas Filling and Leaking in Inertial Confinement Fusion Hohlraum

“…Given the relaxed requirements on laser-beam uniformity, the indirect drive approach is the subject of intense interest in ICF recently. To ensure the symmetry of the implosion, ICF hohlraum is initially filled with a low-density and low-Z gas as a symmetry-control technique to suppress the interaction of the plasma in the hohlraum, thereby resulting in a reduction in the energy loss of the laser [16,17]. Considering that, the gas filling and retention of ICF hohlraum has become a key issue in the ICF studies [18].…”