General Electric Company

Walter K Green

Yogeshwar Dayal

John P Niessel

Chia Tung Pao

A pulse conversion circuit which converts input voltage pulses to current pulses, compares the resulting current pulses to a threshold current and produces an output voltage proportional to the integrated difference between the current pulses and the threshold current.

Pulse conversion circuit

A method and apparatus for monitoring the output of an ion chamber type in-core neutron detector is disclosed. Neutron detectors of this type are known to produce both alternating current and direct current signals which are used as measures of the neutron flux in the chamber. The monitor employs a ratio of the alternating current and direct current signals to detect ion chamber leaks, to correct the output of the detector after a leak, to predict the end-of-life of the detector and to determine the non-linearity of the detector at different power levels.

Method and apparatus for monitoring the output of a neutron detector

A system for indicating radiation from a radioactive fluid such as a gas wherein simultaneous indications of the activity concentration of radioactivity of the gas, the radiation dose rate and average energy of the radiation are provided.

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Gilroy, CA, United States of America

Walter K Green