background count


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background count

The evidence or effect on a detector of radiation caused by background radiation. In connection with health protection, the background count includes but is not limited to radiations produced by naturally occurring radioactivity and cosmic rays.
References in periodicals archive ?
Therefore the detector calls for non-standard solutions in order to maintain a good resolution while pushing the background count rate to state-of-the-art or beyond.
At each position, we defined the major allele count as the highest nucleotide count, the minor allele count as the second highest nucleotide count, the SNV background count as depth minus the major count, and the INDEL background count as the sum of insertion and deletion counts.
Background counts arising from external (to our apparatus) sources continue to be a difficulty; as a point-of-reference, the background count rate drops a factor of five when the reactor is turned off.
However, the number of neutrino events counted in the experimental is only what one would expect as a background count, and the results may represent some kind of statistical fluke or an unforeseen problem in the apparatus or analysis.
During totality the background count fell to the lowest value observed during the entire trip.
At the end of each data-taking cycle the gate potential was lowered to zero to allow a background count.
The upgraded apparatus should produce an increase in the number of trapped neutrons by more than a factor of 20 without substantial increases in the background count rates.
Typically, automated hematology analyzers are not used for clear and colorless cerebrospinal fluids with low cellular counts because of poor reproducibility and high background counts at medically important clinical decision limits of 0 to 5 cell/[micro]L for adults.
For the most part, football is a diverse and brilliant discipline where skin colour, ethnicity and background counts for little.
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