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7 Cards in this Set

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TAR
Tissue Air Ratio
TAR equation
Dd / Dfs: (free space in air) under SAD conditions
How is TAR related to Energy?
TAR increases with increased energy
How is TAR related to FS?
TAR increases with increased field size
How is TAR related to depth?
TAR decreases with depth (approx. exponentially) beyond build-up
How is TAR related to SSD?
TAR is independent of SSD
How is TAR related to TMR?
TAR = TMR * BSF