Acceleration of Macroscopic Particle to Hypervelocity by High-Intensity Beams

作者：Liu, Jian^*; Lei, Yian

来源：IEEE Transactions on Plasma Science, 2009, 37(10): 1993-1997.

DOI：10.1109/TPS.2009.2017748

• High-intensity beam
• hypervelocity impact
• inertial fusion
• macron acceleration

Hypervelocity (similar to 1000-km/s) impact of a macroscopic particle (macron) has profound influences in high energy density physics and inertial fusion energy researches. As the charge-mass ratio of macrons is too low, the length of an electrostatic accelerator can reach hundreds to thousands of kilometers, rendering macron acceleration impractical. To reduce the accelerator length, a much higher electric field than what the most powerful klystrons can provide is desired. One practical choice may be the high-intensity charged particle beam "blowing-pipe" approach. In this approach, a high-intensity (similar to 10-kA) medium-energy (0.5-2-MeV) long-pulse (10-1000-mu s) positively charged ion beam shots to a heavily charged millimeter-size macron to create a local high-strength electric field (similar to 10(10) V/m), accelerating the macron efficiently. We will discuss the physics and challenges involved in this concept and give an illustrative simulation.

• 出版日期2009-10
• 单位北京大学