Role of adsorption effects on absolute electron-molecule cross-section calibration using the relative flow technique

被引：25
|
作者：
Homem, M. G. P. [1 ]
Iga, I. [2 ]
Sugohara, R. T. [3 ]
Sanches, I. P. [2 ]
Lee, M. T. [2 ]
机构：
[1] Univ Fed Santa Catarina, Dept Fis, BR-88040970 Florianopolis, SC, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil
[3] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2011年 / 82卷 / 01期
基金：
巴西圣保罗研究基金会;
关键词：
BEAM SOURCES; SCATTERING; DEPENDENCE; PROFILES; PRESSURE; PHASE;
D O I：
10.1063/1.3525799
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this work, we report an experimental investigation on relative flow-rate determination for vapors. The mechanism of adsorption-desorption of vapors on surfaces is considered. In contrast to previous investigations, our study shows that the adsorption of vapors on surfaces may significantly affect the flow-rate determination and consequently the measured cross sections. Particularly, for water, it can result in an overestimation of 35% in the cross sections. (C) 2011 American Institute of Physics. [doi:10.1063/1.3525799]
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页数：6
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