𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Program for spectra and cross-section calculations within the pre-equilibrium model of nuclear reactions

✍ Scribed by Emil Běták

Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
842 KB
Volume
9
Category
Article
ISSN
0010-4655

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✦ Synopsis

PREEQ the master-equation approach to the model. The complex Catalogue number: ABGO particles and the competition among various channels are also included in the calculation. Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland (see application form in this Method of solution issue). In the first part of the program, the emission rates for all out-Computer: Installation: going channels and the transition rates are calculated. They CDC 3300 Comp. Res. Ctr. U.N.D.P. Bratislava, enter the set of master equations describing the equilibration Czechoslovakia process and the decay. This set is solved by an iteration and SIEMENS 4004/50 Univ. Inst. Comp. Technique, after reaching the equilibrium its solution is extrapolated in Eratislava, Czechoslovakia time to infinity. Finally, the desired particle spectra and/or cross-sections are calculated. Operating system: MASTER 3 Programming language used: FORTRAN IV Restrictions on the complexity of the problem The complex particle emission may be calculated, but the High speed storage required: 20,992 words successive particle emission is not included in the program. No. of bits in a word: 24 but real variable is stored in two The maximum energy of the outgoing particles is restricted words. to 100 MeV. The composite nucleus can be created only by Overlay structure: None particles with mass numbers not exceeding 4. The program supposes that 4 alphanumeric characters can No. of magnetic tapes required: None be stored in one integer variable place. If not, minor modifi-Other peripherals used: Card reader, line printer cations are required in the program. The commands, which No. of cards in combined program and test deck: 816 may require to be changed, are flagged by a comment.

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