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Airborne particulate contamination effect on high voltage breakdowns during tube conditioning


Please use this identifier to cite or link to this item: http://hdl.handle.net/1928/10806

Airborne particulate contamination effect on high voltage breakdowns during tube conditioning

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dc.contributor.author Carbajal, Armida J
dc.date.accessioned 2010-06-24T20:00:06Z
dc.date.available 2010-06-24T20:00:06Z
dc.date.issued 2010-06-24T20:00:06Z
dc.date.submitted May 2010
dc.identifier.uri http://hdl.handle.net/1928/10806
dc.description.abstract In this research we examine high voltage breakdowns (HVBs) during neutron tube conditioning which has been a problem for decades. In the recent past there has been much debate on whether or not to procure a real-time airborne monitoring system for the commercial production of neutron tubes in order to determine the effect and calculate the impact of airborne particles. The main problem is, such monitoring system is costly, and with the exact causes of HVBs not being fully known, the expense must be justified. The goal of this thesis was to analyze the instrumentation used in airborne particle monitoring in order to assert that the instruments were reliable in obtaining the data needed to make improvements. General reliability studies on the instruments were conducted followed by a quasi-experiment which led to the finding that airborne particulates have a measureable effect on external HVBs. This finding led to an observational study on the production floor which examines internal HVBs. An exploratory analysis of the data obtained was conducted and preliminary results showed that the particles may influence the occurrence of internal HVBs in the tubes. As a result of this research the data justified the need to have a real-time airborne monitoring system in order to conduct further research and funding for the system was granted. en_US
dc.description.sponsorship Sandia National Laboratories en_US
dc.language.iso en_US en_US
dc.subject particulates en_US
dc.subject airborne particles en_US
dc.subject high voltage breakdowns en_US
dc.subject logistic regression en_US
dc.subject Principal Component Analysis en_US
dc.subject PCA en_US
dc.subject Poisson Regression en_US
dc.subject ROC Curve en_US
dc.subject Classification Table en_US
dc.subject Statistical Process Control en_US
dc.subject Multivariate Statistics en_US
dc.subject particulate monitoring en_US
dc.subject neutron tube en_US
dc.subject.lcsh Neutron sources
dc.subject.lcsh Contamination (Technology)
dc.subject.lcsh Breakdown (Electricity)
dc.subject.lcsh Air--Pollution--Measurement--Instruments
dc.subject.lcsh Air quality monitoring stations
dc.title Airborne particulate contamination effect on high voltage breakdowns during tube conditioning en_US
dc.type Thesis en_US
dc.description.degree Statistics en_US
dc.description.level Masters en_US
dc.description.department University of New Mexico. Dept. of Mathematics and Statistics en_US
dc.description.advisor Storlie, Curtis B
dc.description.committee-member LaNoue, Marianna D
dc.description.committee-member Guindani, Michele

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