exposure index


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exposure index

A relative value indicating the quantity of ionizing radiation received by a digital radiographic image receptor. Although vendors currently use many kinds of exposure indices, e.g., Sensitivity Numbers, standardization is being developed by physicists' organizations.
See also: index
References in periodicals archive ?
Exposure index Percentage 1968 22 1980 36 1988 36 2000 31 2012 27 (1b) Yet school segregation, as measured by dissimilarity between the racial makeup of schools and the overall student population, declined throughout this period.
One possible explanation for this pattern of results is that the neighborhood poverty exposure index failed to capture other important aspects of spatial disadvantage that may contribute to poor birth outcomes among island-born Puerto Rican women.
1] and FVC were significantly and substantially better in the working children, with even a positive (though nonsignificant) association with the composite exposure index.
This exposure index was not a perfect measure of wave energy because factors such as depth, slope, offshore reefs, wave refraction, and wind direction were not taken into account.
Here, much like the advertisement exposure index, we summed the number of correct responses to create a knowledge index ranging from 0 to 8.
When the two items were combined into an Entertainment Media Exposure Index that ranges from 2 (very low exposure) to 8 (very high exposure), the average score for those under 30 was 4.
11) In Model I, the coefficient for the race-specific exposure index is constant across groups, and it is significantly positive in both 1980 and 1990.
If the same analysis is done omitting districts in which Smart Choices was not taught at all, the overall exposure index is still significantly higher in the live workshop districts.
Quintiles of exposure for the controls were defined for each exposure index and used for classifying cases and controls to explore the shape of the relationships.
Commonly recognized terms include the exposure index (EI) or sensitivity (S-number).