quality factor

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qual·i·ty fac·tor (QF),

a factor by which absorbed radiation doses are multiplied to obtain, for radiation protection purposes, a quantity that expresses the approximate biologic effectiveness of the absorbed dose. Compare: RBE, relative biologic effectiveness.

quality factor

a term that expresses the biological damage that radiation can produce. Doses of different types of radiation can be set equal to one another if the actual absorbed dose is multiplied by the quality factor. The product is called the dose equivalent, measured in sieverts or rem.

qual·i·ty fac·tor

(kwah'li-tē fak'tŏr)
Used in radiation protection to account for the differences in the biologic effects from various types of radiation.

quality factor

Abbreviation: Q
In radiology, a scale used to account for the biological effects of different radiations. Factors include beta, electron, and gamma x-radiation (Q = 1), thermal neutrons (Q = 5), and alpha neutrons and protons (Q = 20).
See also: factor
References in periodicals archive ?
H2: The relative importance weights of the service quality factors are significantly different from viewpoint of bank employees.
12 mm2 with a quality factor of ~60 and the other has an area of ~0.
In order to provide differentiated web services through the web server, our research analyzes various web services quality factors to define the appropriate web services quality factors applied in differentiated web services.
The Index considers not just how much aid donors give, but also quality factors such as whether the aid goes to countries that are particularly poor but uncorrupt.
It will evaluate each agency's work on not only how much in unpaid tax is recovered, but also on quality factors, such as responsiveness to taxpayers.
There are also quality factors that you simply cannot see on shelf, such as traceability, origin, farming practices, and product specifications.
They help make explicit many of the quality factors that users may implicitly assume.
Because of the split markets, quality factors often have more effect on markets, with poor-quality California oranges increasing sales to processing and high quality Florida oranges increasing its sales to the fresh market.
In addition to performing freeze-thaw testing, the researchers will determine hardened air void system parameters for each mix and calculate and evaluate the quality factors.
First, color and other quality factors are controlled digitally.
This book examines the key quality factors at each stage of the supply chain, including guidance on the selection of raw materials, freezer technology, packaging materials and retail display equipment.
Tan listed several key credit quality factors underpinning this deterioration.

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