Computer Programs
NEA-1885 DART-V.1.
last modified: 13-MAY-2015 | catalog | categories | new | search |

NEA-1885 DART-V.1.

DART-V.1, displacement per atom, primary knocked-on atoms produced in an atomic solid target

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1. NAME OR DESIGNATION OF PROGRAM

DART version 1.0

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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
DART-V.1 NEA-1885/01 Tested 13-MAY-2015

Machines used:

Package ID Orig. computer Test computer
NEA-1885/01 Linux-based PC,UNIX W.S. Linux-based PC
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3. DESCRIPTION OF PROGRAM OR FUNCTION

DART calculates the total number of displacements, primary knocked-on atoms, recoil spectra, displacement cross sections and displacement per atoms rates in a poly atomic solid target, composed of many different isotopes, using ENDF/B-VI derived cross sections.

 

To calculate these values, different incident particles were considered: neutrons, ions and electrons.

The user needs only to specify an incident particle energy spectrum and the composition of the target.

The number of displaced atoms are calculated within the Binary Collision Approximation framework. To calculate the number of displacements the DART code does not use the classical NRT dpa analytical formula, which is only appropriate for projectile and target of the same mass. It numerically solves the linearized Boltzmann equation for a polyatomic target.

 

It can be a useful tool to select the nature and energy of ions or electrons in particle accelerators or electron microscopes to mimic the primary damage induced by neutron irradiation in nuclear plants or fission facilities.

 

Nuclear data:

  • Typically any ENDFB format evaluation may be used. This package includes the ENDFB-VI nuclear data library.

 

Energy ranges:

  • Neutron or ion : 10E-11 to 20 MeV

 

Data library distributed with DART v1.0:

  • ENDFB-VI nuclear data library

 

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4. METHODS

The number of displaced atoms are calculated within the Binary Collision Approximation framework, solving integro-differential equations.

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5. RESTRICTIONS ON THE COMPLEXITY OF THE PROBLEM

None noted.

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6. TYPICAL RUNNING TIME

For ion projectiles, a few seconds. For neutron projectile, a few minutes.

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8. RELATED OR AUXILIARY PROGRAMS

The DART binaries and the graphical user interface “dart_ihm” are included.

The libraries needed to run DART can be created using NJOY (distributed by the Data Bank Computer Program Service, package PSR-0480).

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9. STATUS
Package ID Status date Status
NEA-1885/01 13-MAY-2015 Tested restricted
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10. REFERENCES
  • L. Luneville, D. Simeone, C. Jouanne:
    Calculation of radiation damage induced by neutrons in compound materials, Journal of Nuclear Materials 353, (2006), 89

NEA-1885/01, included references:
- D. Simeone, L. Luneville
DART version 1 User Guide, 2014
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11. HARDWARE REQUIREMENTS

LINUX 32 or 64 bits PC. Unix on Mac.

DART v1.0 requires 2 Mbytes of disk space. The associated nuclear data library, ENDFB-VI, requires 400 Mbytes of disk space.

NEA-1885/01

DART version 1.0 was tested at the Data Bank on:

  • COMPUTER : VMWare virtual platform with Intel Xeon E 5-2650, 2 GHz

  • OPERATING SYSTEM : Ubuntu 1204.2 64 bits

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12. PROGRAMMING LANGUAGE(S) USED
Package ID Computer language
NEA-1885/01 C-LANGUAGE, FORTRAN, JAVA
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13. SOFTWARE REQUIREMENTS

DART version 1.0: No sources are included.

The binaries have been produced and tested on Linux32 and Linux64 bits platforms.

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15. NAME AND ESTABLISHMENT OF AUTHORS

Developed by the DART Project Team:

David Simeone, Laurence Luneville,

CE SACLAY

Nuclear Energy Directorate

F-91191 Gif-Sur-Yvette

France

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16. MATERIAL AVAILABLE
NEA-1885/01
installation procedure
some installation tests
DART v1 User Guide report
binaries
graphical user interface: dart_ihm
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17. CATEGORIES
  • A. Cross Section and Resonance Integral Calculations
  • Q. Materials.

Keywords: Boltzmann equation, ENDF/B, collisions, displacement cross sections, displacement per atom, production rates, recoil spectra.