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ISO 11311:2011 PDF

ISO 11311:2011 PDF

Name:
ISO 11311:2011 PDF

Published Date:
07/01/2011

Status:
Active

Description:

Nuclear criticality safety - Critical values for homogeneous plutonium-uranium oxide fuel mixtures outside of reactors

Publisher:
International Organization for Standardization

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Russian version):
200 business days
SKU:
Choose Document Language:
$37.2
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ISO 11311:2011 specifies common reference critical values (of which the effective neutron multiplication factor, keff, is equal to 1) for homogeneous water-moderated plutonium-uranium oxide mixtures based on an inter-code comparison of calculated critical values.

It is applicable to operations with unirradiated mixed uranium-plutonium oxide (MOX) outside nuclear reactors.

A classical validation approach for these systems is difficult because of the paucity of critical experiments for MOX fuel.

Various reference systems, in terms of isotopic compositions, thicknesses of water reflection, and densities of oxide are evaluated by different combinations of calculation codes and nuclear data libraries (i.e. different calculation schemes).

The critical values defined in ISO 11311:2011 are the lowest of those calculated by each of these calculation schemes and accepted as credible.

The values in ISO 11311:2011 are reference values and not absolute critical values.


File Size : 1 file , 110 KB
Note : This product is unavailable in Ukraine, Russia, Belarus
Published : 07/01/2011
Same As : ISO 11311:2011

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