OUT-OF-CORE NUCLEAR INSTRUMENTATION DEVICE
A detector signal-processing circuit (8) comprises the following: a current/voltage conversion part (21) that converts the current value of a neutron detector (3) to a voltage value; a variable gain amplification part (22) that performs amplification by a first-step variable gain using a D/A convert...
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| creator | AIBA, Toshihide NAKAI, Toshimitsu |
| description | A detector signal-processing circuit (8) comprises the following: a current/voltage conversion part (21) that converts the current value of a neutron detector (3) to a voltage value; a variable gain amplification part (22) that performs amplification by a first-step variable gain using a D/A converter (53); a current level response-use resistance circuit (41) that selects the measurement range in accordance with the voltage value; temperature measurement units (82, 83, and 84) for measuring the temperature of the resistance circuit (41) for current level response; a temperature compensation part (81) for commanding gain compensation by the D/A converter (53) on the basis of the measured temperature; and a selective adjustment control part (26) for selective control of the measurement range and adjustment of the variable gain of the variable gain amplification part (22). Due to this configuration, neutron flux can be measured with high precision while maintaining a constant output precision, before and after switching of the measurement range. |
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| language | eng ; fre ; ger |
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| subjects | MEASUREMENT OF NUCLEAR OR X-RADIATION MEASURING NUCLEAR ENGINEERING NUCLEAR PHYSICS NUCLEAR REACTORS PHYSICS TESTING |
| title | OUT-OF-CORE NUCLEAR INSTRUMENTATION DEVICE |
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