background signal


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background signal

[′bak‚grau̇nd ‚sig·nəl]
(engineering)
The output of a leak detector caused by residual gas to which the detector element reacts.
References in periodicals archive ?
1B, there is a background signal in the negative control, which probably results from 2 factors.
As shown in Figure 1, a serum dilution factor of 4,000 reduces nonspecific background signal, regardless of the amplification method.
No difference in background signal is observed between the two assay volumes.
The measurement was made possible by a new data acquisition system that cancels the linear background signal originating from the bias voltage of the n-doped layer with a balancing voltage applied to a side gate of the SET.
Three days before plating in Falcon 24-well-tissue-culture plates (Becton Dickinson, Franklin Lakes, NJ) cells were incubated in phenol-red free DMEM/F-12 medium supplemented with 3% (v/v) dextran/charcoal stripped serum to decrease the estradiol content and the background signal.
Visual inspection showed that even with our steps to ensure that the DNA substrate was highly phosphorylated, some molecules could not be degraded by the exonuclease and even in the absence of AP generated a background signal or noise.
To significantly reduce the background signal from incoherently scattered electrons, the film is mounted over an electron trap so that the electrons penetrating through the particles also penetrate the film and are absorbed in the trap.
LED substrate and epitaxy layers pose significant inspection challenges due to high levels of background signal and nuisance defects.
Background signal obtained by measurement of these amplicons on the N.
We observe very impressive enrichment upon immunoprecipitation with these microarrays, and the dynamic range of the signal in the IP channel is excellent -- the background signal is extremely low," said Dr.
The low background signal in the thorax using this imaging agent allows for high tumor-to-background contrast ratio in the lungs, a promising development for molecular imaging of lung cancer.
It reduces the background signal which allows improved sensitivity.