A cutaway model of the Nuclear Reactor Xperimental (NRX) reactor, which came into operation at CRNL in 1947. The model, which stands on 20 cm tall legs, has an overall height of 72 cm. The base of the model measures 60 cm in length and 30 cm in width. The length of the acrylic “calandria” is 15 cm which, when compared to the actual calandria height of 3 m, sets the scale of the model at 1:20. The model had been used for many years in the Radiation Protection Branch to illustrate the functions of NRX.
