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Figure 4
(a) Schematic diagram of the ultra-high-vacuum test stand. Vacuum chamber area: 13000 cm2 (stainless steel). Sample area: OFHC, 69.5 cm2 × 5 pieces; graphite, 18.3 cm2 × 5 pieces. V1, all metal valve; V2, viton valve; GV, gate valve; VV, vent valve; TMP, turbo molecular pump; RP, rotary pump; TGP, titanium getter pump; SIP, sputter ion pump; BAG, Bayard–Alpert nude gauge; EXG, extractor gauge; FRG, full range gauge (Pirani gauge + cold cathode gauge); LD, leak detector; QMA, quadrupole mass spectrometer. (b) Details of the sample configuration.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 5| Part 3| May 1998| Pages 581-583
https://doi.org/10.1107/S0909049597014751
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