Results 131 to 140 of about 32,254 (175)

Tritium release from catalytic breeder materials

Fusion Engineering and Design, 2001
Abstract In most current designs of D–T fusion reactor breeding blankets employing Li-based ceramic as breeder materials, the use of a helium sweep gas containing 0.1% of hydrogen is contemplated to extract tritium via isotopic exchange reactions. However, at lower temperatures, the release process of tritium from the breeders is known to be rather ...
Munakata, K., Yokoyama, Y., Baba, A., Kawagoe, T., Takeishi, T., Nishikawa, M., Penzhorn, R. D., Moriyma, H., Kawamoto, K., Morimoto, Y., Okuno, K.   +10 more
openaire   +2 more sources

Release of tritium from boron carbide

J. Chem. Soc., Faraday Trans., 1990
The release of tritium from B4C powder and a single crystal has been investigated in the temperature range 400–800 °C. High-energy tritons, produced by bombarding a Cu target with 104 MeV α-particles, were used to prepare samples with a uniform tritium distribution.
K. Schnarr, H. Münzel
openaire   +1 more source

Simulation of Tritium Spreading in Controlled Areas after a Tritium Release

Fusion Science and Technology, 2005
A model to simulate tritium behaviour after a release into a confined ventilated volume has been developed. The model assumes that for the investigated cases, tritium behaviour can be characterized by solving the dynamic equations of motion (the compressible Navier-Stokes equations) coupled with the classical k-[variant epsilon] turbulence model to ...
Cristescu, I. R., Travis, J., Kobayashi, H., Iwai, Y., Murdoch, D.   +4 more
openaire   +1 more source

Tritium release from lithium titanate, a low-activation tritium breeding material

Journal of Nuclear Materials, 1994
Abstract The goals for fusion power are to produce energy in as safe, economical, and environmentally benign a manner as possible. To ensure environmentally sound operation low-activation materials should be used where feasible. The ARIES Tokamak Reactor Study has based reactor designs on the concept of using low-activation materials throughout the ...
J.P. Kopasz, J.M. Miller, C.E. Johnson
openaire   +1 more source

Tritium releases and leukaemia clusters

Journal of Radiological Protection, 1999
Between 1989 and 1991 six children and one young adult developed leukaemia in the community `Elbmarsch' in Lower Saxony (northern part of Germany). Elbmarsch is located near to a nuclear power station (`Krummel') and since then Germany has had its `Sellafield', a leukaemia cluster next to a nuclear power station.
openaire   +1 more source

Release of Tritium from Neutron-Irradiated Lithium Salts

physica status solidi (b), 1963
Preliminary results are reported on the thermal release of tritium from reactor-irradiated crystalline lithium salts. Irradiated samples were submitted to heat treatments at constant temperature in an electrically heated quartz furnace. The free tritium was separated from the bonded tritium by measuring the activity of uncondensable and condensable ...
C. Mantescu, T. Costea
openaire   +1 more source

TRITIUM RELEASE FROM NUCLEAR POWER PLANTS IN TAIWAN

Health Physics, 2003
Tritium is produced in light water reactors from various sources and the design source terms for both BWR and PWR plants are reviewed. The chemical forms of tritium produced in the coolant are discussed in terms of water radiolysis and free radical reactions in the reactor core regions, and the major form of tritium released from the coolant systems is
Chi Chang, Liu, Jiunn-Hsing, Chao, Chien C, Lin   +2 more
openaire   +2 more sources

Tritium release during nuclear power operation in China

Journal of Radiological Protection, 2012
Overviews were evaluated of tritium releases and related doses to the public from airborne and liquid effluents from nuclear power plants on the mainland of China before 2009. The differences between tritium releases from various nuclear power plants were also evaluated.
D J, Yang, X Q, Chen, B, Li
openaire   +2 more sources

Tritium sorption by cement and subsequent release

Fusion Engineering and Design, 1995
Abstract In a fusion reactor or tritium-handling facilities, contamination of concrete by tritium and subsequent release from it to the reator or experimental room is a matter of problem for safe control of tritium and management of operational environment.
Futaba Ono, Satoru Tanaka, Michio Yamawaki   +2 more
openaire   +2 more sources

Tritium Behavior Intentionally Released in the Room

Fusion Science and Technology, 2008
To construct a fusion reactor with high safety and acceptability, it is necessary to establish and to ensure tritium safe handling technology. Tritium should be well-controlled not to be released to the environment excessively and to prevent workers from excess exposure. It is especially important to grasp tritium behavior in the final confinement area,
Kazuhiro Kobayashi, Takumi Hayashi, Yasunori Iwai, Toshihiko Yamanishi, R. Scott Willms, R. V. Carlson   +5 more
openaire   +1 more source