Method for measuring reactivity value of control rod of subcritical reactor

The invention discloses a method for measuring reactivity value of a control rod of a subcritical reactor. The method comprises the following steps: acquiring an initial subcritical state of the reactor and neutron-flux density in the initial subcritical state; inserting the control rod into the sub...

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Bibliographic Details
Main Authors YANG DAIBO, HAN YU, LIU YANYANG, YIN QIUSHENG, WU ZHIQIANG, LI KUN, ZHANG HU, ZENG SHAOLI, WAN BO, LI GANG
Format Patent
LanguageChinese
English
Published 11.11.2022
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
NUCLEAR ENGINEERING
NUCLEAR PHYSICS
NUCLEAR REACTORS
PHYSICS
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Summary:The invention discloses a method for measuring reactivity value of a control rod of a subcritical reactor. The method comprises the following steps: acquiring an initial subcritical state of the reactor and neutron-flux density in the initial subcritical state; inserting the control rod into the subcritical reactor core section by section, and measuring the neutron flux density corresponding to different positions of the control rod inserted into the subcritical reactor core; calculating space correction factors corresponding to different positions of the control rod inserted into the subcritical reactor core; correcting the neutron-flux density corresponding to the position by using the space correction factors of the control rod inserted into different positions of the reactor core of the subcritical reactor; and calculating to obtain the subcritical states of the control rod inserted into different positions of the subcritical reactor core. The neutron flux density, recorded by a reactor neutron detector,
Bibliography:Application Number: CN202211039406