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Title: The continuing saga of alpha CAM (continuous air monitor) development at Los Alamos

Conference ·
OSTI ID:5519943

Monitoring requirements for airborne plutonium are becoming increasingly stringent as regulations require progressively lower limits of detection. The current requirement of 8 DAC-hours reflects the limitations of today's technology for workplace monitoring. Simultaneously, closed-ventilation systems and massive concrete buildings are concentrating radon and its daughter products. The daughter products produce a spectrum that degrades the ability of a continuous air monitor (CAM) to make accurate low-level determinations of plutonium. Los Alamos has been working on improved methods for detecting airborne alpha emitters in the presence of radon daughter products for the last 2 years. These efforts were recently coordinated into a program to examine all facets of CAM operation including aerosol collection, detection, signal processing, computation, alarming, communications, and finally, instrument cost. 4 refs., 2 figs.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
DOE/DP
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
5519943
Report Number(s):
LA-UR-89-3431; CONF-891087-9; ON: DE90002382
Resource Relation:
Conference: IEEE nuclear science symposium and exhibits, San Francisco, CA (USA), 25-27 Oct 1989
Country of Publication:
United States
Language:
English