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Can I read ^244^Cm contributions to the alpha source term of CANDU reactors on EtoBox?
^244^Cm contributions to the alpha source term of CANDU reactors by F. R. Greening is a Engineering article available to read on EtoBox.
What is ^244^Cm contributions to the alpha source term of CANDU reactors about?
## Abstract In this report the expected rate of buildup of ^244^Cm in a CANDU neutron flux is evaluated and used to explain cases of high ^244^Cm in alpha-active samples from Bruce and Pickering Units. It is demonstrated that ^244^Cm is enriched on the surface of irradiated pressure tubes where it is associated with Zr/Nb activation products. It is further shown, using ^94^Nb as a fluence monitor, that the ^244^Cm/(^239^Pu + ^240^Pu) ratio for Bruce and Pickering irradiated pressure tube deposits exhibits a power law = 0.0042 (Fluence)^3.1982^. For non-pressure tube samples, such as feeder pipes, steam generator deposits and PHTS cruds, it is observed that Zr/Nb activation products are also associated with elevated ^244^Cm activities. Thus, based on the data presented in this report, the inference is that all CANDU Units may be expected to exhibit significant levels of ^244^Cm activity on PHTS surfaces, both in and out-of-core, with ^244^Cm/(^239^Pu + ^240^Pu) ratios significantly greater than one.
Who reads ^244^Cm contributions to the alpha source term of CANDU reactors?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- F. R. Greening
- Publisher
- Walter de Gruyter GmbH
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)