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ASTM C1233

Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials

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Organization: ASTM
Publication Date: 10 August 1998
Status: inactive
Page Count: 3
ICS Code (Fissile materials and nuclear fuel technology): 27.120.30
scope:

1. Scope

1.1 This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) values for elements that are of potential significance as thermal neutron poisons. The values are determined from a knowledge of the atomic weight of elements and the thermal neutron absorption cross section in barns. This practice is illustrated by using the EBC factors of Table 1 which are based on thermal neutron (2200 m/s) absorption cross sections. Other EBC factors may be used depending upon the actual neutron energy characteristics of the applicable reactor system.

1.2 The following elements do not require to be included in the EBC calculations, as their EBC factors are less than or equal to 0.0001. aluminum barium beryllium bismuth carbon cerium fluorine lead neon oxygen magnesium phosphorus rubidium silicon tin zirconium

Their contribution to the total poison effect is not considered significant.

Document History

June 1, 2015
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) for nuclear materials. The EBC is used to provide a measure of the macroscopic neutron...
June 1, 2009
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) for nuclear materials. The EBC is used to provide a measure of the macroscopic neutron...
July 10, 2003
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) values for elements that are of potential significance as thermal neutron poisons. The values...
ASTM C1233
August 10, 1998
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
1. Scope 1.1 This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) values for elements that are of potential significance as thermal neutron poisons....
December 10, 1997
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
A description is not available for this item.
January 1, 1993
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
A description is not available for this item.

References

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