Producing and quantifying enriched para- H2

Brian A. Tom, Siddhartha Bhasker, Yuki Miyamoto, Takamasa Momose, Benjamin J. McCall

Research output: Contribution to journalArticle

Abstract

The production of enriched para- H2 is useful for many scientific applications, but the technology for producing and measuring para- H2 is not yet widespread. In this note and in the accompanying auxiliary material, we describe the design, construction, and use of a versatile standalone converter that is capable of producing para- H2 enrichments of up to 99.99% at continuous flow rates of up to 0.4 SLM. We also discuss para- H2 storage and back conversion rates, and improvements to three techniques (thermal conductance, NMR, and solid hydrogen impurity spectroscopy) used to quantify the para- H2 enrichment.

Original languageEnglish (US)
Article number016108
JournalReview of Scientific Instruments
Volume80
Issue number1
DOIs
StatePublished - Feb 9 2009

ASJC Scopus subject areas

  • Instrumentation

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    Tom, B. A., Bhasker, S., Miyamoto, Y., Momose, T., & McCall, B. J. (2009). Producing and quantifying enriched para- H2. Review of Scientific Instruments, 80(1), [016108]. https://doi.org/10.1063/1.3072881