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Neutrino Factory/Muon Collider Document 171-v1

Neutrino Radiation at Muon Colliders and Storage Rings

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MuCool Note
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John Urish
Updated by:
John Urish
Document Created:
14 Sep 2000, 12:00
Contents Revised:
14 Sep 2000, 12:00
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07 Nov 2010, 15:32
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N.V. Mokhov and A. Van Ginneken, Fermilab

Neutrino Radiation at Muon Colliders and Storage Rings


Intense highly collimated neutrino beams, created from muon decays at high-energy
muon colliders or storage rings, cause significant radiation problems even at very large
distances from the machine. A recently developed weighted neutrino interaction
generator permits detailed Monte Carlo simulations of the interactions of neutrinos and
of their progeny with the {\sc mars} code. Special aspects of neutrino radiation dose
evaluation are discussed. Dose distributions in a tissue-equivalent phantom are calculated
when irradiated with 100 MeV to 10 TeV neutrino beams. Results are obtained for a bare
phantom, one embedded in several shielding materials, and one located at various
distances behind a shield. Neutrino radiation is investigated around muon storage
rings serving as the basis for neutrino factories. The most challenging problem of
off-site neutrino dose from muon colliders and storage rings is studied. The distance
from the collider ring (up to 60 km) at which the expected dose rates equals prescribed
annual dose limits is calculated for 0.5-4 TeV muon colliders and 30 and 50 GeV muon storage
rings. Possible mitigation of neutrino radiation problems are discussed and investigated.

Proc. of ICRS-9 International Conference on Radiation Shielding,
Tsukuba, Ibaraki, Japan, October 17-22, 1999, J.Nucl.Sci.Tech., vol.1,
pp. 172-179 (March 2000); Fermilab-Conf-00/065 (2000)

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N.V. Mokhov and A. Van Ginneken
Publication Information:
ICRS-9, Tsukuba, Japan, Fermilab-Conf-00/065 (2000)
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