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ASTM C1233-03
Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
STANDARD published on 10.7.2003
The information about the standard:
Designation standards: ASTM C1233-03
Note: WITHDRAWN
Publication date standards: 10.7.2003
SKU: NS-10176
The number of pages: 3
Approximate weight : 9 g (0.02 lbs)
Country: American technical standard
Category: Technical standards ASTM
Annotation of standard text ASTM C1233-03 :
Keywords:
boron, neutron absorption, nuclear materials, nuclear poisons, ICS Number Code 27.120.30 (Fissile materials and nuclear fuel technology)
Additional information
| 1. Scope | ||||||||||
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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; fluorine; rubidium; barium; lead; silicon; beryllium; neon; tin; bismuth; oxygen; zirconium; carbon; magnesium; cerium; phosphorus. Their contribution to the total poison effect is not considered significant. |
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| 2. Referenced Documents | ||||||||||
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