A xenon gas purity monitor for EXO

A xenon gas purity monitor for EXO

We discuss the design, operation, and calibration of two versions of a xenon gas purity monitor (GPM) developed for the EXO double beta decay program. The devices are sensitive to concentrations of oxygen well below 1ppb at an ambient gas pressure of one atmosphere or more. The theory of operation o...

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Veröffentlicht in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2011-12, Vol.659 (1), p.215-228
Hauptverfasser: Dobi, A., Hall, C., Herrin, S., Odian, A., Prescott, C.Y., Rowson, P.C., Ackerman, N., Aharmin, B., Auger, M., Barbeau, P.S., Barry, K., Benitez-Medina, C., Breidenbach, M., Cook, S., Counts, I., Daniels, T., DeVoe, R., Dolinski, M.J., Donato, K., Fairbank, W., Farine, J., Giroux, G., Gornea, R., Graham, K., Gratta, G., Green, M., Hagemann, C., Hall, K., Hallman, D., Hargrove, C., Karelin, A., Kaufman, L.J., Kuchenkov, A., Kumar, K., Lacey, J., Leonard, D.S., LePort, F., Mackay, D., MacLellan, R., Mong, B., Montero Díez, M., Müller, A.R., Neilson, R., Niner, E., O'Sullivan, K., Piepke, A., Pocar, A., Pushkin, K., Rollin, E., Sinclair, D., Slutsky, S., Stekhanov, V., Twelker, K., Voskanian, N., Vuilleumier, J.-L., Wichoski, U., Wodin, J., Yang, L., Yen, Y.-R.
Format: Artikel
Sprache:eng
Schlagworte:
Accelerators
Argon
Beta decay
Calibration
Devices
Electronegative ion
Monitors
Noble gases
Purification
Purity
Space charge
Tungsten oxide
Xenon
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Beschreibung
Zusammenfassung:We discuss the design, operation, and calibration of two versions of a xenon gas purity monitor (GPM) developed for the EXO double beta decay program. The devices are sensitive to concentrations of oxygen well below 1ppb at an ambient gas pressure of one atmosphere or more. The theory of operation of the GPM is discussed along with the interactions of oxygen and other impurities with the GPM's tungsten filament. Lab tests and experiences in commissioning the EXO-200 double beta decay experiment are described. These devices can also be used on other noble gases.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2011.09.017