The extensive design effort for KSTAR has been focused on two major aspects of the KSTAR
project mission - steady-state-operation capability and advanced tokamak physics. The steady
state aspect of the mission is reflected in the choice of superconducting magnets, provision of
actively cooled in-vessel components, and long pulse current drive and heating systems. The
advanced tokamak aspect of the mission is incorporated in the design features associated with
flexible plasma shaping, double null divertor and passive stabilizers, internal control coils and
a comprehensive set of diagnostics. Substantial progress in engineering has been made on
superconducting magnets, the vacuum vessel, plasma facing components and power supplies. The
new KSTAR experimental facility with cryogenic system and deionized water cooling and main
power systems has been designed, and the construction work is under way for completion
in 2004.
Gamma irradiation was used to reduce the N-nitrosamines and residual nitrite in model system sausage during storage. Aerobic or vacuum packaged sausage was irradiated at 0, 5, 10, 20, and 30 kGy. The residual nitrite levels were significantly reduced by gamma irradiation, and, in vacuum packaging, the reduction was dose dependent. The N-nitrosodimethylamine of the sausage irradiated at 10 kGy or above reduced in aerobic packaging, while a dose of 20 kGy was needed in vacuum packaging. The N-nitrosopyrrolidine reduction was found at 20 and 30 kGyirradiation. Results indicated that high dose irradiation ( > 10 kGy) was needed to reduce the carcinogenic Nnitrosamine and nitrite levels in pork sausage during storage.
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