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# Fundamentals of CANDU Reactor Physics

By
Wei Shen
Wei Shen
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Benjamin Rouben
Benjamin Rouben
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ISBN:
9780791884836
No. of Pages:
154
Publisher:
ASME
Publication date:
2021

There are 2 concepts related to the “age” of fuel: irradiation (fluence) and fuel burnup.

The fuel irradiation in a given fuel bundle, denoted ω, is defined as the time integral of the thermal flux in the fuel during its residence time in the core. Another term for irradiation is fluence. Irradiation is also known as the thermal-neutron exposure of the fuel. The units of irradiation are neutrons/cm2, or more conveniently, neutrons per kilobarn, n/kb. Since the cut-off of the thermal-energy range may be defined differently in different computer codes, the fuel irradiation may vary from computer code...

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