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Latest News
IAEA promoting nuclear energy with G20
The International Atomic Energy Agency launched a collaboration with the Group of 20 this week to highlight the key role that nuclear energy can play in achieving energy security and climate-change goals.
The aim of this first-of-its-kind partnership with G20—the world’s largest economic group—is to build momentum for nuclear power. This is the first time the IAEA has presented to G20 on issues relating to nuclear power.
Ronald W. Petzoldt, Michael Cherry, Neil B. Alexander, Daniel T. Goodin, Gottfried E. Besenbruch, Ken R. Schultz, General Atomics
Fusion Science and Technology | Volume 39 | Number 2 | March 2001 | Pages 678-683
Chamber Technology | doi.org/10.13182/FST01-A11963317
Articles are hosted by Taylor and Francis Online.
Driver beams must hit targets accurately in an inertial fusion energy power plant. Current requirements are less than ±200 μm for indirect drive targets and ±20 μm for direct drive targets. A recent target tracking and position prediction experiment was carried out using indirect drive target sized projectiles.1 The results of that scaled experiment extrapolate to a standard deviation of 220 μm error in position prediction at power plant size. Greater accuracy will be required, especially for direct drive targets. Greater standoff between the detectors and the targets (previously about 3 cm) will also be required to allow for detector shielding. Diffraction effects are expected to be more important with greater standoff and accuracy requirements.
An improved optical target tracking and position prediction system is being designed, as part of the Target Injection and Tracking Experiment at General Atomics, to achieve the above requirements. Concepts for improving accuracy include the use of multiple photodiode arrays, a temperature controlled environment, vibration-limiting detector mounts, additional detector stations, improved electronic noise suppression, and constant-brightness laser light sources. The current status of this design work is presented.