Appendix H to Part 110 - Illustrative List of Electromagnetic Enrichment Plant Equipment and Components Under NRC Export Licensing Authority
10:2.0.1.1.20.11.139.7.29 : Appendix H
Appendix H to Part 110 - Illustrative List of Electromagnetic
Enrichment Plant Equipment and Components Under NRC Export
Licensing Authority Note:
In the electromagnetic process, uranium metal ions produced by
ionization of a salt feed material (typically UCL4) are accelerated
and passed through a magnetic field that has the effect of causing
the ions of different isotopes to follow different paths. The major
components of an electromagnetic isotope separator include: a
magnetic field for ion-beam diversion/separation of the isotopes,
an ion source with its acceleration system, and a collection system
for the separated ions. Auxiliary systems for the process include
the magnet power supply system, the ion source high-voltage power
supply system, the vacuum system, and extensive chemical handling
systems for recovery of product and cleaning/recycling of
components.
(1) Electromagnetic isotope separators.
Especially designed or prepared for the separation of uranium
isotopes, and equipment and components therefor, including:
(i) Ion Sources - especially designed or prepared single or
multiple uranium ion sources consisting of a vapor source, ionizer,
and beam accelerator, constructed of materials such as graphite,
stainless steel, or copper, and capable of providing a total ion
beam current of 50 mA or greater;
(ii) Ion collectors - collector plates consisting of two or more
slits and pockets especially designed or prepared for collection of
enriched and depleted uranium ion beams and constructed of
materials such as graphite or stainless steel;
(iii) Vacuum housings - especially designed or prepared vacuum
housings for uranium electromagnetic separators, constructed of
suitable non-magnetic materials such as stainless steel and
designed for operation at pressures of 0.1 Pa or lower.
The housings are specially designed to contain the ion sources,
collector plates and water-cooled liners and have provision for
diffusion pump connections and opening and closure for removal and
reinstallation of these components; and
(iv) Magnet pole pieces - especially designed or prepared magnet
pole pieces having a diameter greater than 2 m used to maintain a
constant magnetic field within an electromagnetic isotope separator
and to transfer the magnetic field between adjoining
separators.
(2) High voltage power supplies.
Especially designed or prepared high-voltage power supplies for
ion sources, having all of the following characteristics:
(i) Capable of continuous operation;
(ii) Output voltage of 20,000 V or greater;
(iii) Output current of 1 A or greater; and
(iv) Voltage regulation of better than 0.01% over an 8 hour time
period.
(3) Magnet power supplies.
Especially designed or prepared high-power, direct current
magnet power supplies having all of the following
characteristics:
(i) Capable of continuously producing a current output of 500 A
or greater at a voltage of 100 V or greater; and
(ii) A current or voltage regulation better than 0.01% over an 8
hour time period.
(4) Any other components especially designed or prepared for use
in an electromagnetic enrichment plant or in any of the components
described in this appendix.
[61 FR 35606, July 8, 1996, as amended at 79 FR 39297, July 10,
2014]