We demonstrate the ability of plasma immersion ion implantation to treat all surfaces of a porous polymer structure designed to act as a bone scaffold. We prove that the internal pore surfaces receive ion bombardment by examining the ultraviolet (UV) absorption spectrum of a thin polymer sheet placed inside pores of different diameters and locations. The current–voltage characteristics of a Langmuir probe in a pulsed dielectric barrier discharge are studied and interpreted to give measurements of the ion current drawn from plasma in the pores. An existing one‐dimensional model of the plasma is adapted and combined with the Langmuir probe measurements to predict the ion dose to the pore surfaces. Our prediction agrees with measurements from UV absorption.

中文翻译：

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聚合物骨支架的等离子体浸没离子植入中剂量的量化：脉冲介电势垒放电的探针诊断

我们证明了等离子体浸没离子植入能够处理设计成骨支架的多孔聚合物结构的所有表面。我们通过检查放置在不同直径和位置的细孔内的聚合物薄板的紫外线（UV）吸收光谱，证明内部细孔表面受到离子轰击。对脉冲介电势垒放电中Langmuir探针的电流-电压特性进行了研究和解释，以测量从孔隙中的等离子体吸收的离子电流。修改现有的一维血浆模型，并将其与Langmuir探针测量值相结合，以预测到达孔表面的离子剂量。我们的预测与紫外线吸收的测量结果一致。