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Neutrino Factory/Muon Collider Document 175-v1

MARS Code Developments, Benchmarking and Applications

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MuCool Note
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John Urish
Updated by:
John Urish
Document Created:
14 Sep 2000, 12:00
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14 Sep 2000, 12:00
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14 Sep 2000, 12:00
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14 Sep 2006, 13:35
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N.V. Mokhov, Fermilab

MARS Code Developments, Benchmarking and Applications


Recent developments of the \textsc{mars} Monte Carlo code system for simulation
of hadronic and electromagnetic cascades in shielding, accelerator and detector
components in the energy range from a fraction of an electronvolt up to 100 TeV
are described. The physical model of hadron and lepton interactions with nuclei
and atoms has undergone substantial improvements. These include a new nuclear
cross section library, a model for soft pion production, a cascade-exciton model,
a dual parton model, deuteron-nucleus and neutrino-nucleus interaction models,
a detailed description of negative hadron and muon absorption, and a unified
treatment of muon and charged hadron electromagnetic interactions with matter.
New algorithms have been implemented into the code and benchmarked against experimental
data. A new Graphical-User Interface has been developed. The code capabilities
to simulate cascades and generate a variety of results in complex systems have been
enhanced. The \textsc{mars} system includes links to the \textsc{mcnp} code for
neutron and photon transport below 20 MeV, to the \textsc{ansys} code for thermal
and stress analyses and to the \textsc{struct} code for multi-turn particle
tracking in large synchrotrons and collider rings. Results of recent benchmarking
of the \textsc{mars} code are presented. Examples of non-trivial code applications
are given for the Fermilab Booster and Main Injector, for a 1.5~MW target station
and a muon storage ring.

Proc. of ICRS-9 International Conference on Radiation Shielding,
Tsukuba, Ibaraki, Japan, October 17-22, 1999, J.Nucl.Sci.Tech., vol.1,
pp. 167-171 (March 2000); Fermilab-Conf-00/066 (2000)

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N.V. Mokhov
Publication Information:
ICRS-9, Tsukuba, Japan, Fermilab-Conf-00/066 (2000)
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