NESC0561 TOKMINA TOKMINA2

TOKMINA TOKMINA2, Toroidal Magnetic Field Minimization for Tokamak Fusion Reactor

NAME OR DESIGNATION OF PROGRAM, COMPUTER, DESCRIPTION OF PROBLEM OR FUNCTION, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, UNUSUAL FEATURES OF THE PROGRAM, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED, OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHORS, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: TOKMINA TOKMINA2

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Rules for end-users are available here.

Program name	Package id	Status	Status date
TOKMINA	NESC0561/01	Tested	01-JUN-1975
TOKMINA-2	NESC0561/02	Tested	01-JUN-1975

Machines used:

Package ID	Orig. computer	Test computer
NESC0561/01	IBM 370 series	IBM 370 series
NESC0561/02	IBM 370 series	IBM 370 series

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3. DESCRIPTION OF PROBLEM OR FUNCTION

TOKMINA finds the minimum magnetic field, Bm, required at the toroidal coil of a Tokamak type fusion reactor when the input is beta(ratio of plasma pressure to magnetic pressure), q(Kruskal-Shafranov plasma stability factor), and y(ratio of plasma radius to vacuum wall radius: rp/rw) and arrays of PT(total thermal power from both d-t and tritium breeding reactions), Pw(wall loading or power flux) and TB(thickness of blanket), following the method of Golovin, et al.
TOKMINA-2 finds the total power, PT, of such a fusion reactor, given a specified magnetic field, Bm, at the toroidal coil.

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4. METHOD OF SOLUTION

TOKMINA: the aspect ratio(a) is minimized, giving a minimum value for Bm. TOKMINA2: a search is made for PT; the value of PT which minimizes Bm to the required value within 50 Gauss is chosen.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Input arrays presently are dimensioned at 20. This restriction can be overcome by changing a dimension card.

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6. TYPICAL RUNNING TIME

TOKMINA: approximately 30 seconds for 100 sets of input values.
TOKMINA-2: approximately 1 minute for 700 sets of input values.

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7. UNUSUAL FEATURES OF THE PROGRAM

Output for each set of input values are TB, Bt(toroidal magnetic field on the minor axis), R(major radius of the toroid), rp, Rm(distance between the major axis and the blanket in the midplane), n(density of the plasma) and I(plasma current). These values, as well as Bm and PT may be studied as a function of blanket thickness.

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8. RELATED AND AUXILIARY PROGRAMS:

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9. STATUS

Package ID	Status date	Status
NESC0561/01	01-JUN-1975	Tested at NEADB
NESC0561/02	01-JUN-1975	Tested at NEADB

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10. REFERENCES

- I. N. Golovin, Yu. N. Dnevstrovsky and D. P. Kostomarov, Tokamak as a Possible Fusion Reactor - Comparison with Other C. T. R. Devices, BNES Nuclear Fusion Reactor Conference at Culham Laboratory, September 1969.
- A. J. Hatch and J. Etzweiler, A Simplified Parametric Study of Tokamak Fusion Reactors, Proceedings of the Texas Symposium on Fusion Reactors, November 22-23, 1972, CONF-721111.

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11. MACHINE REQUIREMENTS: 160K bytes of core

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NESC0561/01	FORTRAN-IV
NESC0561/02	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 AUTHORS

                 A. J. Hatch
                 Physics Division
                 Argonne National Laboratory
                 9700 South Cass Avenue
                 Argonne, Illinois  60439

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16. MATERIAL AVAILABLE

NESC0561/01