Philomath, Oregon Population: Census 2010 and 2000 Interactive Map, Demographics, Statistics, Quick Facts Compare population statistics about Philomath, OR by race, age, gender, Latino/Hispanic origin etc. CensusViewer delivers detailed demographics and population statistics from the 2010 Census, 2000 Census, American Community Survey (ACS), registered voter files, commercial data sources and more.
median lethal dose (LD 50) the quantity of an agent that will kill 50 per cent of the test subjects; in radiology, the amount of radiation that will kill, within a specified period, 50 per cent of individuals in a large group or population.ee also median effective dose. erythema dose that amount of radiation that, when applied to the skin, causes erythema (temporary reddening). fatal dose lethal dose.
1. the air dose of radiation at the skin surface, comprising the primary radiation plus backscatter. 2. the absorbed dose in the skin. threshold dose the minimum dose of ionizing radiation, a chemical, or a drug that will produce a detectable degree of any given effect.ose equivalent, n number used in radiation safety that is the product of the radiation dose absorbed by a tissue multiplied by a given quality factor specific to the type of radiation used. Expressed in sieverts or rems, dose equivalent is used to determine potential physical injury to the patient.