Reflectors, infinite cylinders, intersecting cylinders and criticality

Technical Report · Sat Jul 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/6703344· OSTI ID:6703344

Thomas, J T

Calculations of the effective neutron multiplication factor of critical and subcritical infinitely long cylinders of aqueous solutions of fissile materials for various configurations of water and concrete reflectors are presented. The results provide a basis for investigating the criticality of intersecting pipes with similar reflectors. An infinitely long central cylinder with up to four intersections within each 0.46 m increment of length was examined. A method for evaluating the nuclear criticality safety of these configurations is given and a margin of subcriticality recommended.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 6703344
• Report Number(s): ORNL/CSD/TM-57
• Country of Publication: United States
• Language: English

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42 ENGINEERING
420203* -- Engineering-- Handling Equipment & Procedures
A CODES
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ALPHA DECAY RADIOISOTOPES
AQUEOUS SOLUTIONS
COMPUTER CODES
CRITICALITY
CYLINDERS
DISPERSIONS
EVEN-ODD NUCLEI
FISSILE MATERIALS
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HEAVY NUCLEI
ISOMERIC TRANSITION ISOTOPES
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MINUTES LIVING RADIOISOTOPES
MIXTURES
NUCLEI
NUMERICAL SOLUTION
PLUTONIUM 239
PLUTONIUM ISOTOPES
RADIOISOTOPES
SOLUTIONS
URANIUM 233
URANIUM 235
URANIUM ISOTOPES
X CODES
YEARS LIVING RADIOISOTOPES