Chrisnewhaven--
Hmmm… Not directly relevant to the "nuclear locomotive" topic (I don't think this reactor was ever intended to be part of r-and-d on THAT … genuine but never seriously pursued? … project, but definitely relevant to Alco history: I'd recommend posting to a NEW string on the Alco forum. If you do, I'll try to figure out what Alco was doing with a reactor in the first place and comment.
(I think a lot of companies in the 1950s and 1960s got involved in a small way with nuclear research: in some cases I suspect it was a p.r. exercise, meant to convince stockholders that management was up-to-date and forward-looking! But an actual reactor would have been expensive for p.r., and Alco WAS marketing some things to the nuclear industry….)