Helium-3 (3He)

IUSA-cylinders Helium-3 is a light, non-radioactive isotope of ordinary helium whose natural abundance on earth is 1.38 x 10-6. It is odorless, colorless and tasteless, and it is principally shipped and used in gaseous form for neutron detectors, nuclear magnetic resonance (NMR) tracers, spectroscopy, low-temperature physics, lasers, dilution refrigerators and nuclear fusion research. 

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PRODUCT DETAILS/PURITY SPECIFICATIONS
Parameters Reference Specifications
Helium-3, atomic fraction (%) ≥99.8
Helium-4, atomic fraction (%) ≤0.2
Total Helium (He-3 and He-4), volume fraction (%) ≥99.995
Nitrogen, volume fraction (%) ≤6 x 10-4
Hydrocarbons, volume fraction (%) ≤6 x 10-4
Hydrogen, volume fraction (%) ≤6 x 10-4
Oxygen and Argon in total, volume fraction (%) ≤6 x 10-4
Carbon Monoxide, volume fraction (%) ≤6 x 10-4
Volumetric activity of Tritium, Bq/L (Ci/L) ≤4.8(1.3 x 10-10)
Tritium, atomic fraction (%) ≤1 x 10-11
Carbon Dioxide, volume fraction (%) Not specified

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