Elsevier Science Home
Computer Physics Communications Program Library
Full text online from Science Direct
Programs in Physics & Physical Chemistry
CPC Home

[Licence| Download | New Version Template] adai_v1_0.gz(35 Kbytes)
Manuscript Title: DENCOM: code for level density calculation of deformed nuclei using a combined method.
Authors: F. Garcia, O. Rodriguez, V.A. Rubchenya, E. Garrote
Program title: DENCOM
Catalogue identifier: ADAI_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 86(1995)129
Programming language: Fortran.
Computer: Micro-computer with.
Operating system: MS-DOS 6.00.
RAM: 100K words
Word size: 16
Peripherals: disc.
Keywords: Nuclear physics, Spectra, Level scheme, Superfluid model, Level density, Combined method.
Classification: 17.15.

Nature of problem:
The level density useful for nuclear reaction cross section calculations is calculated using a combined method [1]. At high excitation energy, the level density is computed using a quantum-statistical model [2]. At low excitation energy, the level density is calculated from the quasi- particle spectrum computed using the superfluid model.

Solution method:
The energy range to compute level density is divided in two intervals: first, from zero to some value of excitation energy, where level density is calculated using a combinatorial method and the second one from the matching energy to final excitation energy, where a quantum-statistical method is used to compute level density.

Restrictions:
Maximum number of quasiparticle to take into account for the quasi- particle spectrum calculations: three for odd system and four for even system.

Running time:
Depends on the choice for calculation. To compute only quasiparticle spectrum the running time is approximately 43 seconds and to calculate statistical level density the running time is approximately 7 seconds. For test, in which both choices are computed the running time is 50 seconds.

References:
[1] S.A. Egorov, V.A. Rubchenya, Yad. Fiz. 49(1989)1580.
[2] P. Decowski et al. Nucl. Phys. A110(1968)129.