Nuclear Non-proliferation Import and Export Control Regulations — A.2.4.7
A.2.4.7 Especially designed or prepared systems, equipment and components for use in laser-based enrichment plants, including: A.2.4.7.1 Uranium vaporization systems (Atomic Vapour Laser Isotope Separation) Especially designed or prepared uranium vaporization systems for use in laser enrichment. A.2.4.7.2 Liquid or vapour uranium metal handling systems and components (Atomic Vapour Laser Isotope Separation) Especially designed or prepared systems for handling molten uranium, molten uranium alloys or uranium metal vapour for use in laser enrichment, or especially designed or prepared components for that purpose. A.2.4.7.3 Uranium metal product and tails collector assemblies (Atomic Vapour Laser Isotope Separation) Especially designed or prepared product and tails collector assemblies for collecting uranium metal in liquid or solid form. A.2.4.7.4 Separator module housings (Atomic Vapour Laser Isotope Separation) Especially designed or prepared cylindrical or rectangular vessels for containing the uranium metal vapour source, the electron beam gun, and the product and tails collectors. A.2.4.7.5 Supersonic expansion nozzles (Molecular Laser Isotope Separation) Especially designed or prepared supersonic expansion nozzles for cooling mixtures of UF 6 and carrier gas to 150 K (-123°C) or less and that are corrosion resistant to UF 6 . A.2.4.7.6 Product or tails collectors (Molecular Laser Isotope Separation) Especially designed or prepared components or devices for collecting uranium product material or uranium tails material following illumination with laser light. A.2.4.7.7 UF 6 /carrier gas compressors (molecular laser isotope separation) Especially designed or prepared compressors for UF 6 /carrier gas mixtures, designed for long-term operation in a UF 6 environment. The components of these compressors that come into contact with process gas are made of or protected by materials resistant to corrosion by UF 6 . A.2.4.7.8 Rotary shaft seals (molecular laser isotope separation) Especially designed or prepared rotary shaft seals, with seal feed and seal exhaust connections, for sealing the shaft connecting the compressor rotor with the driver motor so as to ensure a reliable seal against out-leakage of process gas or in-leakage of air or seal gas into the inner chamber of the compressor which is filled with a UF 6 /carrier gas mixture. A.2.4.7.9 Fluorination systems (molecular laser isotope separation) Especially designed or prepared systems for fluorinating UF 5 (solid) to UF 6 (gas). A.2.4.7.10 UF 6 mass spectrometers with ion sources (Molecular Laser Isotope Separation) Especially designed or prepared mass spectrometers capable of taking on-line samples from UF 6 gas streams and having all of the following characteristics: (a) the capability of measuring ions of 320 atomic mass units or greater with a resolution of better than 1 part in 320; (b) ion sources constructed of or protected by nickel, nickel-copper alloys with a nickel content of 60% by weight or more, or nickel-chrome alloys; (c) electron bombardment ionization sources; and (d) collector system suitable for isotopic analysis. A.2.4.7.11 Feed systems/product and tails withdrawal systems (molecular laser isotope separation) Especially designed or prepared process systems or equipment for enrichment plants made of or protected by materials resistant to corrosion by UF 6 , including: (a) feed autoclaves, ovens, or systems used for passing UF 6 to the enrichment process; (b) desublimers (or cold traps) used to remove UF 6 from the enrichment process for subsequent transfer upon heating; (c) solidification or liquefaction stations used to remove UF 6 from the enrichment process by compressing and converting UF 6 to a liquid or solid form; and (d) product or tails stations used for transferring UF 6 into containers. A.2.4.7.12 UF 6 /carrier gas separation systems (molecular laser isotope separation) Especially designed or prepared process systems for separating UF 6 from c