The reactivity control capacity of the N-reactor control systems has been calculated by methods which take into account the absorption of epithermal as well as thermo neutrons. Earlier calculations were made using a method which is satisfactory in control calculations for the existing Hanford reactors but which largely neglects the epithermal absorption. The new calculations were undertaken because of recent evidence that the epithermal absorption is more important to the NPR control strength and because of some concern regarding the margin between previously calculated control strength and anticipated control requirements. The calculational methods used in the present study and the …
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Publisher Info:
General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
Place of Publication:
Richland, Washington
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The reactivity control capacity of the N-reactor control systems has been calculated by methods which take into account the absorption of epithermal as well as thermo neutrons. Earlier calculations were made using a method which is satisfactory in control calculations for the existing Hanford reactors but which largely neglects the epithermal absorption. The new calculations were undertaken because of recent evidence that the epithermal absorption is more important to the NPR control strength and because of some concern regarding the margin between previously calculated control strength and anticipated control requirements. The calculational methods used in the present study and the resulting calculated control capacities are reported in this document.
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16 p.
Notes
OSTI as DE94010949; Paper copy available at OSTI: phone, 865-576-8401, or email, reports@adonis.osti.gov
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