Computer Programs
NESC0255 R101
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NESC0255 R101

R-101, 1 Group Space-Independent Reactor Kinetics for Neutron Density

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1. NAME OR DESIGNATION OF PROGRAM:  R101
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2. COMPUTERS
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Program name Package id Status Status date
R-101 NESC0255/01 Tested 01-OCT-1976

Machines used:

Package ID Orig. computer Test computer
NESC0255/01 IBM 370 series IBM 370 series
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3. DESCRIPTION OF PROBLEM OR FUNCTION

R101 solves the space- independent, one-energy group reactor kinetics equations to determine the time variation of neutron density given specified initial conditions. Any of four programmed representations of excess reactivity can be selected.
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4. METHOD OF SOLUTION

The method of solution was originally described in ANL-5577.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM: , Maximum number of delay groups = 20.
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6. TYPICAL RUNNING TIME

Less than 30 seconds was required to compile  and execute the sample problem.
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7. UNUSUAL FEATURES OF THE PROGRAM

An interrupt facility is incorporated which permits parameter changes and edit or termination when a specified value of a parameter is attained.
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8. RELATED AND AUXILIARY PROGRAMS:  R102 (NESC Abstract 168) is the inverse program.
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9. STATUS
Package ID Status date Status
NESC0255/01 01-OCT-1976 Tested at NEADB
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10. REFERENCES

- R.O. Brittan:
  Some Problems in the Safety of Fast Reactors
  ANL-5577 (May 1956).
NESC0255/01, included references:
- J.J. Kaganove:
  Reactor Kinetics, R101 AMD Program Library Report
  (October 7, 1964).
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11. MACHINE REQUIREMENTS:  240K bytes of storage.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NESC0255/01 FORTRAN-IV
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED:   OS/360.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS:
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15. NAME AND ESTABLISHMENT OF AUTHOR

                 J. J. Kaganove
                 Applied Mathematics Division
                 Argonne National Laboratory
                 9700 South Cass Avenue
                 Argonne, Illinois  60439
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16. MATERIAL AVAILABLE
NESC0255/01
File name File description Records
NESC0255_01.001 SOURCE PROGRAM (F4) EBCDIC 454
NESC0255_01.002 SAMPLE PROBLEM INPUT DATA 36
NESC0255_01.003 SAMPLE PROBLEM PRINTED OUTPUT 917
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17. CATEGORIES
  • E. Space-Independent Kinetics

Keywords: delayed neutrons, reactivity, reactor kinetics, reactor period.