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Title: Contamination analysis unit

Abstract

The portable Contamination Analysis Unit (CAU) measures trace quantities of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surfaces by measuring residual hazardous surface contamination, such as tritium and trace organics. It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings. 1 fig.

Inventors:
;
Issue Date:
Research Org.:
University of California
OSTI Identifier:
238057
Patent Number(s):
5,521,381
Application Number:
PAN: 8-354,325; TRN: 96:012882
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 28 May 1996
Country of Publication:
United States
Language:
English
Subject:
40 CHEMISTRY; MASS SPECTROMETERS; DESIGN; SURFACE CONTAMINATION; MEASURING METHODS; HAZARDOUS MATERIALS; CHEMICAL ANALYSIS; RADIOACTIVE MATERIALS; REAL TIME SYSTEMS; ON-LINE MEASUREMENT SYSTEMS; VACUUM SYSTEMS; TRACE AMOUNTS; SURFACE PROPERTIES

Citation Formats

Gregg, H R, and Meltzer, M P. Contamination analysis unit. United States: N. p., 1996. Web.
Gregg, H R, & Meltzer, M P. Contamination analysis unit. United States.
Gregg, H R, and Meltzer, M P. Tue . "Contamination analysis unit". United States.
@article{osti_238057,
title = {Contamination analysis unit},
author = {Gregg, H R and Meltzer, M P},
abstractNote = {The portable Contamination Analysis Unit (CAU) measures trace quantities of surface contamination in real time. The detector head of the portable contamination analysis unit has an opening with an O-ring seal, one or more vacuum valves and a small mass spectrometer. With the valve closed, the mass spectrometer is evacuated with one or more pumps. The O-ring seal is placed against a surface to be tested and the vacuum valve is opened. Data is collected from the mass spectrometer and a portable computer provides contamination analysis. The CAU can be used to decontaminate and decommission hazardous and radioactive surfaces by measuring residual hazardous surface contamination, such as tritium and trace organics. It provides surface contamination data for research and development applications as well as real-time process control feedback for industrial cleaning operations and can be used to determine the readiness of a surface to accept bonding or coatings. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {5}
}