Transmission of N-Atoms Produced by N<sub>2</sub>Flowing Microwave Afterglows through Hollow Tubes

• 作者: Andre Ricard Jean-Philippe Sarrette
• 来源期刊: 分析科学方法和仪器期刊(英文)
• 学科: 医学
• 关键词: Spectroscopy N-Atoms TRANSMISSION HOLLOW TUBES γ-Destruction Probability
• 年，卷（期）: fxkxffhyqqkyw_2013,（1）
• 页码范围: 1-7
• 页数: 7页
• 分类号: R73

摘要

Transmission of N-atoms (T N ) through small diameters tubes (1.5 and 3 mm internal diameter (i.d) and 9, 50 and 80 cm length for silicone tubes, 1.5 mm i.d and 6.5 cm length for stainless steel tubes) has been measured in late N2 and Ar-N2 flowing afterglows of microwave plasmas in continuous and pulsed gas injection at a flow rate of 1 and 3 Standard liter by minute (Slm), a gas pressure from 2 to 4 Torr for N2 and 20 Torr for Ar-1%N2 and a plasma power from 150 to 300 Watt. From the experimental TN values, it is deduced the γ-destruction probability inside the tube walls as being y = (1-1.6)×10-3 for the silicon tubes and y = (1.6-2)×10-2 for the stainless steel tubes.