![]() Network power management includes: New installed UPS systems complete a multi-point provisioning startup sequence to certify operation before the installer leaves the site, vastly reducing repeat site visits. ![]() The experimental results using prototype units have shown that the approach of using alpha to beta activity ratio method to detect long-lived alpha activity in the presence of short-lived natural activity is satisfactory. When monitoring Alpha power supplies, Alpha XD and Continuity create a network power ecosystem providing not only standards-based status monitoring but also complete power system management. Long-lived 239Pu contamination of about 16 DAC.h could be detected after about 45 minutes of commencement of the sampling. Presence of any long-lived alpha contamination on the filter paper results in increase in the alpha to beta ratio. Monitoring was carried out in three facilities with different ventilation conditions. The activity ratios were calculated and plotted against the monitoring duration up to about six hours. Detection system was specially designed for the purpose of simultaneous counting of alpha and beta activity deposited on the filter paper during continuous monitoring. However, the ratio between the natural alpha and beta activity is approximately constant and this constancy of the ratio is used to discriminate against short-lived natural radioactivity in continuous air monitoring. Measurement of long-lived alpha activity collected on a filter paper in continuous air monitoring of ambient working environment is difficult due to interference from much larger concentrations of short-lived alpha emitting daughter products of 222Rn and 220Rn.
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