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.