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Title: Skyshine study for next generation of fusion devices

Conference ·
OSTI ID:6056838

A shielding analysis for next generation of fusion devices (ETR/INTOR) was performed to study the dose equivalent outside the reactor building during operation including the contribution from neutrons and photons scattered back by collisions with air nuclei (skyshine component). Two different three-dimensional geometrical models for a tokamak fusion reactor based on INTOR design parameters were developed for this study. In the first geometrical model, the reactor geometry and the spatial distribution of the deuterium-tritium neutron source were simplified for a parametric survey. The second geometrical model employed an explicit representation of the toroidal geometry of the reactor chamber and the spatial distribution of the neutron source. The MCNP general Monte Carlo code for neutron and photon transport was used to perform all the calculations. The energy distribution of the neutron source was used explicitly in the calculations with ENDF/B-V data. The dose equivalent results were analyzed as a function of the concrete roof thickness of the reactor building and the location outside the reactor building.

Research Organization:
Argonne National Lab., IL (USA)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6056838
Report Number(s):
CONF-870405-15; ON: DE87011531; TRN: 87-031649
Resource Relation:
Conference: Topical conference on theory and practice in radiation protection and shielding, Knoxville, TN, USA, 22 Apr 1987; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English