radioactive contamination

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radioactive contamination

the undesirable addition of radioactive material to the body or part of the environment, such as clothing or equipment. Contamination of the body by beta radiation may occur through the ingestion, inhalation, or absorption of a beta emitter. Instruments, drapes, surgical gloves, and clothing that come in contact with serous fluids, blood, and urine of patients containing beta or gamma radiation emitters may be contaminated. The severity of the contamination is directly related to the elapsed time between the administration of the radioactive isotope and surgery. On completion of the procedure, possibly contaminated material is isolated and checked. If found to be contaminated, it is disposed of according to institutional and federal standards for the disposal of radioactive waste.
References in periodicals archive ?
A first series of exercises will address source term evaluations that will be compared to the reference source terms from the scenarios database.
The gas-liquid interface is tracked using continuum surface force (CSF) equation [5]; it is incorporated into the governing equation as a source term.
diffusion coefficient S = source term Subscripts [phi] = general fluid property such as velocity components, Enthalpy, species concentration ,kinetic energy of turbulence k and its dissipation rate [epsilon] i = one of the three cartesian directions
The source term due to the four-current (2) in the righthand member of (1) has to satisfy the Lorentz invariance.
Furthermore, [tau] is the stress tensor, f is a source term that may include rotational effects, g is the gravitational acceleration, [gamma] is the thermal diffusivity and q is the energy source term.
i] is the Cartesian coordinate x, y, and (m); p is the pressure (Pa); [mu] is the air dynamic viscosity (kg/m x s); and S is the source term (kg/[m.
I am hopeful that we will get pretty comfortable as they remove the major source term (industry speak for radioactive material) from the site," Wolff said.
To take into account the solidification, a source term is added to the energy equation corresponding to heat absorption or heat release [7].
At the right hand side of the action balance equation is the source term S = S ([sigma], [theta]), expressed as a function of energy density representing the effects of generation, dissipation and nonlinear wave-wave interactions.
nb] are the influence coefficients for the neighboring cells and b is the contribution of the constant part of the source term.
In April 2007, the Fire Protection Research Foundation (FPRF) issued the report "LNG Source Term Models for Hazard Analysis: A Review of the State-of-the Art and an Approach to Model Assessment.
s] is a source term associated with the interaction between the spray droplet and the fluid.

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