"nuclear reactor physics" by Weston Stacey I just bought it and started reading it. Anybody know the book ? Opinions, remarks ? I might have a few questions when reading it, are some people prepared to discuss it ? As a first question, actually, on the cross section plots, there's always something like MT = 18 (for instance, page 7 already) or MT = 27 or the like. What does it mean ? Some kind of temperature ? cheers, Patrick.