Reactimeter with analogue and pulse channels for reactor power measurements

The reactor power meter is described, operating in tendecade range of the reactor power change. The reactimeter pulse channel, using the directly connected neutron flux detector CHM-at the entrance and the charge sensitive preamplifier with high input dynamic capacitance allowed to uncrease its sensitivity and provided the measurement at the lower power levels. It had increased the nuclear safety of the first physical reactor start-ups and had reduced its performance time. The instrument testing had indicated the high sensitivity and noise impurity of the reactimeter pulse channel. 6 refs.; 4 figs