The Development of Cavity Ringdown Spectroscopy as a Toxic Metal Continuous Emission Monitor

Miller, Dr. Goeroge P. ; Winstead, Dr. Christopher B.

Mississippi State University (United States)

关键词: Inductively Coupled Plasma;    Cavity Ringdown Spectroscopy;    Radopactove Wastes;    Remedial Action Cavity Ringdown Spectroscopy;    Electrothermal Atomization;   

DOI  :  10.2172/791575
RP-ID  :  DOE/ER/62517
RP-ID  :  FG07-97ER62517
RP-ID  :  791575

美国|英语

来源: UNT Digital Library

【 摘 要 】

Innovative program to explore the viability of using Cavity Ringdown Spectroscopy (CRDS) for trace analysis and monitoring of remediation processes for hazardous and radioactive wastes. Cavity ringdown spectroscopy is a measurement of the rate of absorption of a sample within a closed optical cavity rather than the standard measurement of the avsorved signal strength over a given sample path. It is a technique capable of providing ultra-sensitive absorption measurements in hostile environments using commercially available easy-to-use pulsed lasers. The inherent high sensitivity stems from both the long effective sample pathlengths possible and the relaxed constraints on the accuracy of the measurement of the cavity decay time.