Helium Sensitivity in Oxygen Deficiency Measurement Equipment

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Most accelerators in operation today use liquid helium based superconducting technology in some capacity. Many of these facilities also use fixed and portable oxygen monitors to detect an oxygen deficient atmosphere were the helium to be accidentally released. When released, helium can expand 800 times its liquid volume. Recent helium spill tests at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) uncovered a fundamental flaw in certain types of oxygen deficiency monitoring equipment. The ensuing investigation found that the problem is endemic to a class of electrochemical oxygen sensors used throughout both the research and industrial communities. This paper describes ... continued below

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181 Kilobytes pages

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Mahoney, Kelly; Hutton, Andrew; Robertson, H.; Arenius, D. & Curry, D. June 1, 2001.

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Most accelerators in operation today use liquid helium based superconducting technology in some capacity. Many of these facilities also use fixed and portable oxygen monitors to detect an oxygen deficient atmosphere were the helium to be accidentally released. When released, helium can expand 800 times its liquid volume. Recent helium spill tests at the Thomas Jefferson National Accelerator Facility (Jefferson Lab) uncovered a fundamental flaw in certain types of oxygen deficiency monitoring equipment. The ensuing investigation found that the problem is endemic to a class of electrochemical oxygen sensors used throughout both the research and industrial communities. This paper describes the results of the Jefferson Lab investigation and steps taken to date to both solve the problem and inform the safety community at large.

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181 Kilobytes pages

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  • PAC 2001, Chicago, IL (US), 06/18/2001--06/22/2001

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  • Report No.: JLAB-ACT-01-23
  • Report No.: DOE/ER/40150-1993
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 791555
  • Archival Resource Key: ark:/67531/metadc742791

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 2001

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  • Oct. 19, 2015, 7:39 p.m.

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  • Feb. 5, 2016, 8:49 p.m.

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Mahoney, Kelly; Hutton, Andrew; Robertson, H.; Arenius, D. & Curry, D. Helium Sensitivity in Oxygen Deficiency Measurement Equipment, article, June 1, 2001; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc742791/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.