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  • Title: NOREC, a Monte Carlo code for simulating electron tracks in liquid water.
    Author: Semenenko VA, Turner JE, Borak TB.
    Journal: Radiat Environ Biophys; 2003 Oct; 42(3):213-7. PubMed ID: 12920530.
    Abstract:
    The work reported here was originally motivated by a discussion of Monte Carlo computer codes for electron transport in water given in Report No. 130 by the National Council on Radiation Protection and Measurements (NCRP). It was pointed out (correctly) that a published depth-dose distribution calculated by the Oak Ridge electron transport code, OREC, for 800 keV electrons normally incident on a water slab was apparently in error, possibly due to inadequate treatment of elastic scattering. In this paper we describe the replacement of the original OREC elastic cross sections by current ones from the National Institute of Standards and Technology (NIST). This investigation led also to the critical examination and revision of some other parts of the program, as described here. The revised code, which we have renamed NOREC, represents the first substantial review and modification of the Oak Ridge code in a number of years. We also present some comparisons of results calculated with the old and new versions and discuss their implications with respect to earlier studies. We have also written a version of NOREC in C++ language, which is available to other investigators. This paper provides a record of a response to the NCRP published statement and documentation for the revised code, NOREC.
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