High-speed imaging system to visualize particle removal/collection via wipe sampling and aerodynamic sampling

被引：1
作者：
Staymates, Matthew [1 ]
Gillen, Greg [1 ]
Staymates, Jessica [1 ]
机构：
[1] NIST, Mat Measurement Lab, 100 Bur Dr, Gaithersburg, MD 20899 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2019年 / 90卷 / 06期
关键词：
HOMELAND SECURITY; TRACE DETECTION; SURFACE; REMOVAL; EXPLOSIVES; COLLECTION;
D O I：
10.1063/1.5096488
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
This work describes a high-speed imaging system that enables the microscopic visualization of the removal and collection of micrometer-sized particles from surfaces during wipe sampling and aerodynamic sampling events. The system features a high-speed digital camera, microlens, custom sample mount and sampling sled, and an illumination source. This imaging system enables direct visualization of wipe-particle and particle-particle interactions during sampling and provides insights relevant to the dynamics of particle removal and collection. Examples of common and adhesive-modified wipe materials sampling polymer microspheres and an explosive-laden fingerprint are given, along with visualization of particle removal via air jet impingement.
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页数：4
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