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Figure 4
Cryo-cooling apparatus design used at the Weizmann Institute of Science in 1967 (Haas, 1968bBB16; modified from Garman & Schneider, 1997BB7).

IUCrJ
Volume 7| Part 2| March 2020| Pages 148-157
ISSN: 2052-2525
https://doi.org/10.1107/S2052252519016993