TITLE

Electrostatic method to accelerate nanoshells to extreme hypervelocity

AUTHOR(S)
Zhehui Wang, W.J.; Kline, J.L.
PUB. DATE
August 2003
SOURCE
Applied Physics Letters;8/25/2003, Vol. 83 Issue 8, p1662
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Using an acceleration voltage of less than a few hundred kilovolts, it is unlikely that a charged solid object larger than a few micron (10[sup -6] m) in all three dimensions can be accelerated to more than 10 km/s. Quasi-two-dimensional (Q2D) objects are unique forms of matter with two macroscopic dimensions, while the third approaches atomic dimensions. Well-known examples of Q2D objects are thin films. Another example of a Q2D object will be a sphere with a nm thick shell (nanoshell). In this letter, it is predicted that nanoshells can be accelerated to 100 km/s (extreme hypervelocity, or EHV) and above using the electrostatic method. The maximum velocity is limited by field emission and material strength. The two limits only allow a certain number of charges on a nanoshell before it starts to emit ions or electrons, or to break. “Table-top” EHV nanoshell beams can be used for high-temperature plasma diagnostics and fueling. EHV nanoshells can also be used to study hypervelocity-impact phenomena in a momentum space not accessible in the past. © 2003 American Institute of Physics.
ACCESSION #
10603804

 

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