Pneumatic capillary gun for ballistic delivery of microparticles

Details Pneumatic capillary gun for ballistic delivery of microparticles Pneumatic capillary gun for ballistic delivery of microparticles

2005-02-15

arxiv.org/abs/physics/0502080v3

Physics

Medical Physics

7 pages, 3 figures

Scientific paper

10.1063/1.1951044

A pneumatic gun for ballistic delivery of microparticles to soft targets is proposed and demonstrated. The particles are accelerated by a high speed flow of Helium in a capillary tube. Vacuum suction applied to a concentric, larger diameter tube is used to divert substantially all of the flow of Helium from the gun nozzle, thereby preventing the gas from hitting and damaging the target. Speed of ejection of micron-sized gold particles from the gun nozzle, and their depth of penetration into agarose gels are reported.

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