Helium-3

Helium-3 (3He)

IUSA-cylinders

-3气体是普通氦气的一种较轻的,无放射性的同位素,天然丰度是1.38×10-6。它无色,无臭,无味,主要以气态的形式用于中子探测器,核磁共振示踪,光谱学,低温物理,激光,制冷,以及核聚变研究等。

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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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