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UMLS. CSP-HL7-ICD9CM-NCI-NDFRT-RXNORM
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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
S S S- S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SY
SI SI5 SIA SIB SIC SID SIE SIG SIK SIL SIM SIN SIO SIP SIR SIS SIT SIU SIV SIX SIZ

Sievert

[Sievert (Sv) is the SI derived unit of equivalent radiation dose. One Sv is received when the actual absorbed dose of ionizing radiation, after being multiplied by the dimensionless factors Q (quality factor) and N (the product of any other multiplying factors), is one joule per kilogram. In this scheme, the relationship between the absorbed dose of radiation D and the dose equivalent H is, therefore, given by H = QND. Both Q and N are stipulated by the International Commission on Radiological Protection. Also known as the relative biological efficiency, Q depends on the nature of the radiation and has a value of one for x rays, gamma rays, and beta particles; 10 for neutrons; and 20 for alpha particles. N is a factor that takes into account the distribution of energy throughout the dose. One Sv is equal to 100 rem. ( NCI )]
UMLS (NCI) C0560132
 
Quantitative Concept
Relation/PAR: UnitOfMeasureAtomInsens
UnitOfMeasureAtomSens
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