# The Nuclear Safeguards (Notification) Regulations 2004, Paragraph 5.7.10: UF6 mass spectrometers/ion sources (MLIS)


Especially designed or prepared magnetic or quadrupole mass spectrometers capable of taking “on-line” samples of feed, “product” or “tails”, from UF6 gas streams and having all of the following characteristics:
1.) Unit resolution for mass greater than 320;
2.) Ion sources constructed of or lined with nichrome or monel or nickel plated;
3.) Electron bombardment ionization sources;
4.) Collector system suitable for isotopic analysis.

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Source: https://www.legislation.gov.uk/uksi/2004/1255/schedule/part/II/paragraph/5n24 (the official version)
Page: https://openlegislation.uk/nuclear-safeguards-notification-regulations-2004/schedule/part-II/paragraph-5n24
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.