The spatial density distribution of H 2 O 2 in the effluent of the COST-Jet and the kINPen-sci operated with a humidified helium feed gas
The spatial density distribution of H 2 O 2 in the effluent of the COST-Jet and the kINPen-sci operated with a humidified helium feed gas
复制标题
使用加湿氦气进料运行的 COST-Jet 和 kINPen-sci 流出物中 H 2 O 2 的空间密度分布
DOI：
10.1088/1361-6595/ad0742
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发表时间：
2023
影响因子：
3.8
通讯作者：
Harris B
中科院分区：
文献类型：
--
作者：
Harris B
冷大气等离子体射流与氦原料气含有少量的水蒸汽混合物操作的H2 O2直接生物医学应用的优秀来源。然而，H2 O2通常在整个流出区域不均匀地分布，这意味着患者或基底接受的剂量取决于其相对于等离子体源的位置。本研究提出了绝对H2 O2数密度的空间分布在两个流行的等离子体射流，COST射流和kINPen-sci等离子体射流，当操作与增湿氦气进料气体的流出物。使用连续波腔衰荡光谱与可调谐的中红外激光进行测量。在喷嘴附近测得的H2 O2数密度为2.3
Cold atmospheric plasma jets operated with a helium feed gas containing small admixtures of water vapour are excellent sources of H 2 O 2 for direct biomedical applications. However, H 2 O 2 is typically distributed non-uniformly throughout the effluent region, meaning the dosage received by a patient or substrate is dependent on their positioning relative to the plasma source. This study presents the spatial distribution of absolute H 2 O 2 number densities in the effluent of two popular plasma jets, the COST-Jet and the kINPen-sci plasma jet, when operated with a humidified helium feed gas. The measurements were performed using continuous wave cavity ring-down spectroscopy with a tunable, mid-infrared laser. The H 2 O 2 number density measured close to the jet nozzle is 2.3