NEA-0002 AIREK-PUL.

AIREK-PUL, Periodic Kinetics Problems of Pulsed Reactors

NAME OR DESIGNATION OF PROGRAM, COMPUTER, NATURE OF PHYSICAL PROBLEM SOLVED, METHOD OF SOLUTION, RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM, TYPICAL RUNNING TIME, FEATURES, RELATED AND AUXILIARY PROGRAMS, STATUS, REFERENCES, MACHINE REQUIREMENTS, LANGUAGE, OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED, OTHER RESTRICTIONS, NAME AND ESTABLISHMENT OF AUTHOR, MATERIAL, CATEGORIES

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1. NAME OR DESIGNATION OF PROGRAM: AIREK-PUL.

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2. COMPUTERS

To submit a request, click below on the link of the version you wish to order. Only liaison officers are authorised to submit online requests. Rules for requesters are available here.

Program name	Package id	Status	Status date
AIREK-PUL	NEA-0002/01	Tested	01-JUL-1964

Machines used:

Package ID	Orig. computer	Test computer
NEA-0002/01	IBM 7090	IBM 7090

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3. NATURE OF PHYSICAL PROBLEM SOLVED

Solves periodic problems about the kinetics of pulsed reactors or problems where the reactivity has rapid variations. The program uses two constant steps for the integration of the system of differential equations, the first step during the first half-period and the second step during the second half-period. Available for either single or double precision.

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4. METHOD OF SOLUTION

The differential equations are integrated using the fourth-order Runge-Kutta method as modified by E.R. Cohen (Geneva Conference, 1958).

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

The maximum number of differential equations that can be solved simultaneously is 50.

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6. TYPICAL RUNNING TIME

Depends upon the case and the precision. A typical case takes about 1 minute for a pulse using single precision.

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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM

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8. RELATED AND AUXILIARY PROGRAMS: An extension of AIREK-II and AIREK-MOD.

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9. STATUS

Package ID	Status date	Status
NEA-0002/01	01-JUL-1964	Tested at NEADB

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10. REFERENCES

- A. Schwartz:
  Generalised Reactor Kinetics Code AIREK-II
  NAA-SR-MEMO 4980 (1959).
- C. Tamagnini:
  AIREK-MOD - A Modified Version of the Kinetic Code AIREK-II - EUR 1914.E

NEA-0002/01, included references:

- A. Inzaghi and R. Misenta:
  AIREK-PUL, A Version of the Kinetic Code AIREK-MOD for
  Periodically Pulsed Fast Reactors
  EUR 2552.E.

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11. MACHINE REQUIREMENTS: About 4.5k (+ library routines) core storage.

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12. PROGRAMMING LANGUAGE(S) USED

Package ID	Computer language
NEA-0002/01	FORTRAN-II (IBM)

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13. OPERATING SYSTEM OR MONITOR UNDER WHICH PROGRAM IS EXECUTED: FORTRAN II under IBSYS, or FORTRAN II monitor.

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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

ANY OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS

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15. NAME AND ESTABLISHMENT OF AUTHOR

         A. Inzaghi
         CETIS
         EURATOM - C.C.R.
         Ispra (Varese), Italy

         R. Misenta
         Fisica Neutronica
         EURATOM - C.C.R.
         Ispra (Varese), Italy

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16. MATERIAL AVAILABLE

NEA-0002/01

File name	File description	Records
NEA0002_01.001	SIMP-PREC SOURCE & DATA	566
NEA0002_01.002	SIMP-PREC OUTPUT	103
NEA0002_01.003	DOUB-PREC SOURCE & DATA	567
NEA0002_01.004	DOUB-PREC OUTPUT	58

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17. CATEGORIES

E. Space-Independent Kinetics

Keywords: differential equations, pulsed reactors, reactor kinetics.