Impulse-scaling in a laser-driven in-tube accelerator
Impulse-scaling in a laser-driven in-tube accelerator
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DOI:
10.1007/s00339-003-2134-4
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发表时间:
2003-07
期刊:
影响因子:
--
通讯作者:
A. Sasoh;Naohide Urabe;Sukyum Kim;I. Jeung
中科院分区:
文献类型:
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作者:
A. Sasoh;Naohide Urabe;Sukyum Kim;I. Jeung
The laser-driven in-tube accelerator (LITA) is a unique device for laser propulsion. It is characterized by the acceleration of a projectile in a tube. The thrust performance can be improved by exploiting a confinement effect. In the experiment, a 3.0-g projectile is vertically launched, and the momentum coupling coefficient is measured for various monoatomic gases. The measured coupling coefficient is almost proportional to the reciprocal of the speed of sound. The same impulse generation characteristics are obtained in simplified situations that are analyzed based on conservation relations.