Results 211 to 220 of about 4,934 (261)

Nerva Nuclear Reactor Instrumentation

IEEE Transactions on Nuclear Science, 1966
The environmental conditions existing at many of the points at which measurements are required in the ground testing of the NERVA reactors are beyond the capabilities of commercially available transducers. The measurement of the temperatures inside the reactor core was accomplished by pushing thermocouples to the high temperature limit of this sensing ...
F. S. Malick, R. L. Ramp, G. A. Gilmour
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Neutron detectors for reactor instrumentation

Proceedings of the IEE - Part II: Power Engineering, 1953
The paper discusses the principles involved in the detection of thermal neutrons and describes three types of detector used in the operation of natural-uranium graphite-moderated reactors, namely flux-scanning detectors, installed flux monitors and detectors used in association with automatic power-control plants.
T.A.J. Jaques, H.A. Ballinger, F. Wade
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Update on reactors and reactor instruments in Asia

Physica B: Condensed Matter, 1991
Abstract The 1980s have seen the commissioning of several medium flux (∼10 14 neutrons/cm 2 s) research reactors in Asia. The reactors are based on indigenous design and development in India and China. At Dhruva reactor (India), a variety of neutron spectrometers have been established that have provided useful data related to the structure of high ...
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The instrumentation of reactors

British Journal of Applied Physics, 1956
The paper presents a survey of the instruments needed for the normal operation of reactors. All reactors produce power: the instruments used for its measurement and control and its effect on the temperature of the reactors components are described. These include instruments operated from detectors sensitive to neutron flux and those concerned with ...
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Programming for a nuclear reactor instrument simulation

SIMULATION, 1988
This note discusses 8086/8087 machine-language programming for simulation of nuclear reactor instrument current inputs by means of a digital-analog converter (DAC) feeding a bank of series input resistors. It also shows FORTRAN programming for generat ing the parameter tables used in the simulation.
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Instrumentation for a boiling water reactor

Electrical Engineering, 1958
A description is given of the instrumentation for the Vallecitos Boiling Water Reactor, a small-scale power reactor supplying steam to a turbine operated by the Pacific Gas & Electric Company as part of their generating facilities. An attempt has been made in the design of the plant to keep the instrumentation as simple as possible.
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Modular concepts in reactor control instrumentation

Transactions of the American Institute of Electrical Engineers, Part I: Communication and Electronics, 1958
The basic circuitry of ornl (Oak Ridge National Laboratory) reactor control instrumentation has been rearranged, and in some cases redesigned, so that more flexibility, reliability, and economy are achieved without sacrificing the safety performance of the original designs.
J. L. Cockrell, D. F. Ryan, J. H. Magee
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The control and instrumentation of a nuclear reactor

Proceedings of the IEE - Part B: Radio and Electronic Engineering, 1956
The control and instrumentation of nuclear reactors is a rapidly developing subject which is becoming of ever-increasing importance to a growing body of instrument engineers. Many of the problems of instrumental design are common with other industrial plants and follow conventional lines.
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Servologarithmic Amplifier for Reactor Instrumentation

IRE Transactions on Nuclear Science, 1959
The instrument described is a servo which provides an output proportional to the logarithm of the input over 4 decades. Use of a special four-decade exponential feedback potentiometer makes the accuracy and repeatability much better than that obtainable with the usual logarithmic amplifiers. A period trip circuit is part of the instrument.
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Nuclear reactors as research instruments

Reports on Progress in Physics, 1967
This article starts with a very brief description of the scientific principles of research reactors and of the radiations provided by them. There is a discussion of the different forms of research reactor, both steady-state and pulsed, with an indication of trends in the design of high flux systems.
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