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PSR-0146 ALICE91.

ALICE91, Particle Spectra from Compound Nucleus Decay

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1. NAME OR DESIGNATION OF PROGRAM:  ALICE91.
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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
ALICE91 PSR-0146/01 Tested 09-DEC-1991
ALICE91 PSR-0146/02 Tested 24-JAN-1996

Machines used:

Package ID Orig. computer Test computer
PSR-0146/01 CRAY X-MP Many Computers
PSR-0146/02 IBM PC PC Pentium 75
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3. DESCRIPTION OF PROGRAM OR FUNCTION

Several types of calculations and combinations can be performed including a standard Weisskopf- Ewing evaporation with multiple particle emission, S-wave approximation to give an upper limit to the enhancement of gamma-ray deexcitation due to momentum effects, and an evaporation calculation that can include fission competition via the Bohr-Wheeler approach.  ALICE91 calculates precompound decay via Hybrid and GDH models with  multiple precompound decay algorithms, single and double differential spectra, and reaction product cross sections.
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4. METHOD OF SOLUTION

ALICE/85/300 and later revisions of the ALICE/LIVERMORE 82 computer code do precompound, compound/ statistical fission calculations in the general framework of the Weisskopf-Ewing evaporation model, the Bohr-Wheeler transition state model for fission, and the hybrid/geometry dependent models for precompound decay. ALICE/85/300 allows a variable energy mesh size,  excitation energies up to 300 MeV, and incorporates several other improvements in calculational approaches.
ALICE91 includes options for shell dependent level densities, and an option to use systematics for angular distribution. The new version also includes gamma-ray competition with particle decay models.
The IBM PC version (B) was converted from mainframe ALICE-87, which is a revision of ALICE/85/300. Input default options were included in this version. Refer to comments in the file ALICE1.FOR for information on modifications. ALISO differs only in that it will do calculations for natural isotopic targets, giving weighted results at the end.
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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

Users must refer to  comments in the FORTRAN source files for input instructions and information. If running the PC version on 32-bit word-length machines, remove CXXXXX from double precision statements for POW and GAM.
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6. TYPICAL RUNNING TIME

The sample input took about 6 seconds of CPU  time on the Cray XMP under UNICOS. The sample case for ALICE-87 took 23 minutes on an IBM PC/XT running at 4.7 megahertz with a math co-  processor. The ALISO case took 4 minutes on the same computer.
PSR-0146/01
  The test case included in this package was run at NEADB both on IBM 3090 and VAX 8810 computers. Execution times were 20 seconds on IBM and 59 seconds on VAX.
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7. UNUSUAL FEATURES: UNUSUAL FEATURES OF THE PROGRAM
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8. RELATED OR AUXILIARY PROGRAMS: RELATED AND AUXILIARY PROGRAMS
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9. STATUS
Package ID Status date Status
PSR-0146/01 09-DEC-1991 Tested at NEADB
PSR-0146/02 24-JAN-1996 Tested at NEADB
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10. REFERENCES

- M. Blann: "Recent Progress and Current Status of Preequilibrium Reaction Theories and Computer Code ALICE" in SMR/284-1, ITCP Workshop on applied Nuclear Theory and Nuclear Model Calculations for Nuclear Technology Applications held in Trieste, Italy (February-March, 1988).
- M. Blann: " Multiple Preequilibrium Decay Processes" UCRL-97778, from the NEANDC Specialists' Meeting on Preequilibrium Nuclear Reactions hels in Semmerling, Austria (February 1988).
- Jens Bisplinghoff: "Configuration Mixing in Preequilibrium Reactions: A New Look at the Hybrid-Exciton Controversy" Physical Review C, 33(5), 1569-1580 (May 1986).
- M. Blann and J. Bisplinghoff: "Numerical Test of Approximations in the Hybrid Precompound Decay Model" Atomic Nuclei, 326, 429-434 (1987).
- G. Reffo, M. Blann and B.A. Remington: "On the Origin of Medium Energy Gamma-Rays in Nuclear Reactions" UCRL-97866, Preprint submitted to Physical Review C (December 1987).
- M. Blann, W. Scobel and E. Plechaty: "Precompound Nucleon Angular Distributions in the Continuum" Physical Review C, 30(5), 1493-1508 (November 1984).
- M. Blann, G. Reffo and F. Fabbri: "Calculation of Gamma-Ray Cascades in Code ALICE" UCRL-55374, Preprint submitted to Nuclear Instruments and Methods (September 1986).
- F. Plasil: "ORNL ALICE: A Statistical Model Computer Code Including Fission Competition" ORNL/TM-6054 (November 1977).
PSR-0146/01, included references:
- M. Blann:
CODE ALICE/85/300, UCID-20169 (September 1984).
- M. Blann and J. Bisplinghoff:
CODE ALICE/LIVERMORE 82, UCID-19614 (November 1982).
- R. Roussin:
Informal Input Instructions for ALICE/85/300 (February 1987).
- M. Blann and H.K. Vonach:
Global Test of Modified Precompound Decay Models Physical Review C,28(4)
1475-1492 (October 1983).
- D.E. Cullen and V. Goulo:
Precompound Nuclear Model Code Version for Personnal Computer IBM/AT Informal
Notes on PC Implementat. (May 1988).
- M.Blann :
Recent Progress and Curent Status of Preequilibrium Reaction Theories and
Computer Codes Alice UCRL-JC-109052 Preprint November 21, 1991
PSR-0146/02, included references:
- M. Blann:
CODE ALICE/85/300, UCID-20169 (September 1984).
- M. Blann and J. Bisplinghoff:
CODE ALICE/LIVERMORE 82, UCID-19614 (November 1982).
- R. Roussin:
Informal Input Instructions for ALICE/85/300 (February 1987).
- M. Blann and H.K. Vonach:
Global Test of Modified Precompound Decay Models Physical Review C,28(4)
1475-1492 (October 1983).
- D.E. Cullen and V. Goulo:
Precompound Nuclear Model Code Version for Personnal Computer IBM/AT Informal
Notes on PC Implementat. (May 1988).
- M. Blann :
Recent Progress and Curent Status of Preequilibrium Reaction Theories and
Computer Codes Alice, UCRL-JC-109052 Preprint November 21, 1991
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11. MACHINE REQUIREMENTS

Version A is operational on the Cray XMP, and Version B has run on both IBM PC/XT and /AT computers with math co-  processors. Memory requirements for the executable modules on an IBM PC/AT are: 530K (ALICE) and 525K (ALISO).
PSR-0146/02
  NEA-DB installed the program on a Brett Pentium 75 PC with 75MHZ and 16MB of RAM and ran the test case included in the package.
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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
PSR-0146/01 FORTRAN-77
PSR-0146/02 FORTRAN-77
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13. OPERATING SYSTEM UNDER WHICH PROGRAM IS EXECUTED

The CRAY/CTSS version used the CIVIC compiler and the CRAY/UNICOS version used the CFT77 compiler. For ALICE-87 IBM Professional FORTRAN Version 1.0 was used, and for ALISO, Microsoft's FORTRAN 4.01 was used.
PSR-0146/01
  VMS V5.3 (VAX); MVS/XA (IBM).

PSR-0146/02
  NEA-DB installed the program and ran the test case under MS-DOS 6.2. The source code was compiled with the Lahey FORTRAN compiler version 5.20.
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14. OTHER PROGRAMMING OR OPERATING INFORMATION OR RESTRICTIONS
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15. NAME AND ESTABLISHMENT OF AUTHORS

           Lawrence Livermore National Laboratory
           Livermore, California

           International Atomic Energy Agency
           Vienna, Austria
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16. MATERIAL AVAILABLE
PSR-0146/01
File name File description Records
PSR0146_01.001 Information file 117
PSR0146_01.002 ALICE91.IBM Source for IBM and VAX 6739
PSR0146_01.003 ALICE91.UNI Source for CRAY/UNICOS 6713
PSR0146_01.004 ALICE91.CTS Source for CRAY/CTSS 6708
PSR0146_01.005 JCL.IBM JCL for IBM 106
PSR0146_01.006 JCL.VAX JCL for VAX 7
PSR0146_01.007 INPUT.DAT Sample input 13
PSR0146_01.008 OUTPUT.IBM Sample output from IBM 3145
PSR0146_01.009 OUTPUT.VAX Sample output from VAX 3134
PSR0146_01.010 OUTPUT.UNI Sample output from CRAY/UNICOS 3134
PSR0146_01.011 OUTPUT.CTS Sample output from CRAY/CTSS 3271
PSR-0146/02
File name File description Records
PSR0146_02.001 Information file 89
PSR0146_02.002 Fortran source file 6739
PSR0146_02.003 Executable file 0
PSR0146_02.004 Lahey error messages 0
PSR0146_02.005 Sample input 13
PSR0146_02.006 Sample output 3134
PSR0146_02.007 DOS file-names 6
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17. CATEGORIES
  • A. Cross Section and Resonance Integral Calculations

Keywords: compound nuclei, evaporation model, nuclear models, precompound-nucleus emission.