Cellular parameters for track structure modeling of radiation hazard in space

Details Cellular parameters for track structure modeling of radiation hazard in space Cellular parameters for track structure modeling of radiation hazard in space

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004adspr..34.1378w&link_type=abstract

Advances in Space Research, Volume 34, Issue 6, p. 1378-1382.

Biology

Radiation Hazard In Space, Track Structure Modeling, Cellular Parameters, Space Biology

Scientific paper

Based on irradiation with 45 MeV/u N and B ions and with Co-60 γ rays, cellular parameters of Katz's track structure model have been fitted for the survival of V79-379A Chinese hamster lung fibroblasts. Cellular parameters representing neoplastic transformations in C3H10T/1/2 cells after their irradiation with heavy ion beams, taken from earlier work, were also used to model the radiation hazard in deep space, following the system for evaluating, summing and reporting occupational exposures proposed in 1967 by a subcommittee of NCRP. We have performed model calculations of the number of transformations in surviving cells, after a given fluence of heavy charged particles of initial energy 500 MeV/u, penetrating thick layers of cells. We take the product of cell transformation and survival probabilities, calculated along the path lengths of charged particles using cellular survival and transformation parameters, to represent a quantity proportional to the ``radiation risk factor'' discussed in the NCRP document. The ``synergistic'' effect of simultaneous charged particle transfers is accounted for by the ``track overlap'' mode inherent in the model of Katz.

Affiliated with

Also associated with

No associations

Rating

Cellular parameters for track structure modeling of radiation hazard in space does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cellular parameters for track structure modeling of radiation hazard in space, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cellular parameters for track structure modeling of radiation hazard in space will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1838525