Physics Models in the MARS15 Code for Accelerator and Space Applications
- Fermi National Accelerator Laboratory, MS 220, Batavia, Illinois 60510-0500 (United States)
- Institute of Applied Physics, Academy of Sciences of Moldova, Kishinev, MD-2028 (Moldova, Republic of)
- Los Alamos National Laboratory, MS B283, Los Alamos, New Mexico 87545 (United States)
The MARS code system, developed over 30 years, is a set of Monte Carlo programs for detailed simulation of hadronic and electromagnetic cascades in an arbitrary geometry of accelerator, detector and spacecraft components with particle energy ranging from a fraction of an electron volt up to 100 TeV. The new MARS15 (2004) version is described with an emphasis on modeling physics processes. This includes an extended list of elementary particles and arbitrary heavy ions, their interaction cross-sections, inclusive and exclusive nuclear event generators, photohadron production, correlated ionization energy loss and multiple Coulomb scattering, nuclide production and residual activation, and radiation damage (DPA). In particular, the details of a new model for leading baryon production and implementation of advanced versions of the Cascade-Exciton Model (CEM03), and the Los Alamos version of Quark-Gluon String Model (LAQGSM03) are given. The applications that are motivating these developments, needs for better nuclear data, and future physics improvements are described.
- OSTI ID:
- 20722499
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 769; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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