Pulsed Neutron System for Reactor Measurements
- 1 February 1961
- journal article
- research article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 32 (2) , 178-183
- https://doi.org/10.1063/1.1717305
Abstract
A complete pulsed neutron system has been developed for use in reactor reactivity measurements. The probe unit is small enough to fit into a reactor instrumentation pipe. The pulse‐to‐pulse variation in neutron output has been kept to a minimum by regulating the gas pressure in the neutron tube and by maintaining the same pulsing conditions regardless of pulsing rate. The total neutron output per pulse is in excess of 107 neutrons, and the maximum pulsing rate is 10 pulses/sec. The neutron tube has a useful life of 106 pulses. The system meets the design requirements; however, some additional work may be necessary if temperatures experienced during actual operation in the reactor affect the pressure regulating system of the tube.Keywords
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