Results 141 to 150 of about 32,254 (175)

Tritium Release Reduction and Radiolysis Gas Formation

Fusion Science and Technology, 2008
At CEA Valduc, the usual tritiated waste container is the steel drum. It allows good release reduction performance for middle activity waste but in some cases tritium outgassing from the waste drums is too high. It was decided to overpackage each drum in a tighter container called the over-drum. According to good safety practices it was also decided to
Gaèl Batifol, Christophe Douche, Christophe Sejournant   +2 more
openaire   +1 more source

Tritium Release from SS316 under Vacuum Condition

Fusion Science and Technology, 2015
Type 316 stainless steel specimens loaded with tritium either by exposure to 1.2 kPa HT at 573 K or submersion into liquid HTO at 298 K showed characteristic thin surface layers trapping tritium in...
Y. Torikai, R.-D. Penzhorn
openaire   +1 more source

Tritium release behavior from neutron-irradiated Li8PbO6

Journal of Nuclear Materials, 1990
Abstract Chemical behavior of tritium produced in octa-lithium plumbate (Li 8 PbO 6 ) crystals by the 6 Li(n, α)T reaction has been investigated. Nearly 100% of the tritium in the crystals existed in the T + state. When the neutron-irradiated crystals were heated up to 1073 K under vacuum, almost all the tritium released in the chemical form of ...
T. Hayashi, S. Konishi, K. Okuno
openaire   +1 more source

Tritium Release Estimate from CLWR-Tritium Extraction Facility Waste Overpack

2001
Spent targets (Tritium Producing Burnable Absorber Rods, TPBARs) from the Commercial Light Water Reactor-Tritium Extraction Facility (CLWR-TEF) at the Savannah River Site will be sent to waste disposal contained in a so-called ''overpack''. The tritium permeation rate through a welded stainless steel overpack was estimated using a finite difference ...
openaire   +1 more source

Release Behavior of Tritium from Graphite Material

Fusion Science and Technology, 2002
The behavior of tritium at removal from graphite material for a fusion reactor is discussed. The mass transfer coefficient representing the isotope exchange reaction between hydrogen isotopes in the gas stream and tritium existing on graphite surfaces and that between water vapor in the gas stream and tritium on the surface are quantified. It was found
Kazunari Katayama, Masabumi Nishikawa
openaire   +1 more source

Tritium and Helium Release from Irradiated Beryllium

Fusion Technology, 1995
Tritium and helium release behavior have been measured for Be specimens irradiated at 75°C in the Advanced Test Reactor (ATR) to a fast neutron fluence of 5x10 22 n/cm 2 . Stepped-isothermal anneal experiments were conducted from room temperature to above the melting point of Be, with the temperature steps varied from one experiment to the other.
R. A. Anderl, J. D. Baker, G. L. Bourne, R. J. Pawelko   +3 more
openaire   +1 more source

Tritium Release from Niobium

Nuclear Technology, 1974
C. W. Pennington, T. S. Elleman, K. Verghese   +2 more
openaire   +2 more sources

Behavior of Tritium Released to the Environment

2016
Tritium release from a fusion reactor consists of chronic one during the normal operation and accidental one. Once tritium (T) is released from the reactor, it disperses into environment. Because of its low energy of the β-electron released at T decay, internal exposure by T uptake (inhalation and ingestion) and its biological effects are major ...
Kazuyuki Noborio, Tetsuo Tanabe
openaire   +1 more source

Release behavior of bred tritium from LiAlO2

Journal of Nuclear Materials, 2004
Abstract The release behavior of bred tritium to the blanket purge gas is mainly controlled by such bulk phenomena as tritium forming reaction, diffusion of tritium in grain, interaction of tritium with irradiation defects, and absorption together with such surface phenomena as adsorption, isotope exchange reaction between molecular form hydrogen in ...
M. Nishikawa, T. Kinjyo, T. Ishizaka, S. Beloglazov, T. Takeishi, M. Enoeda, T. Tanifuji   +6 more
openaire   +1 more source

A simple fast micromethod for measuring enzyme activities which release tritium as tritium water

Analytical Biochemistry, 1987
The entire procedure is carried out in a counting vial by mixing the reagents as a 20- to 30-microliters drop in the cap of a counting vial, incubating, quenching the reaction, and then distilling the tritium water produced into the chilled vial, in which it is assayed after the addition of scintillation solvent and a clean cap. The application of this
openaire   +2 more sources