Tenth-value layer (TVL) definition

Tenth-value layer (TVL) means the thickness of a specified material which attenuates X-radiation or gamma radiation to an extent such that the air kerma rate, exposure rate or absorbed dose rate is reduced to one-tenth of the value measured without the material at the same point.
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Tenth-value layer (TVL) means the thickness of a specified material which attenuates X-radiation or
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Tenth-value layer (TVL) means the thickness of a specified material which, x-radiation or gamma radiation to the extent that the
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More Definitions of Tenth-value layer (TVL)

Tenth-value layer (TVL) means the thickness of a specified material which attenuates X-radiation or gamma radiation to an extent such that
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Tenth-value layer (TVL) means the thickness of a specified material which attenuates xX-radiation
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Tenth-value layer (TVL) means the thickness of a specified material
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Tenth-value layer (TVL) means the thickness of a certain material required to reduce the radiation of a known energy range and intensity, to one-tenth of its original intensity. This can also be expressed as the quotient of 2.303 by the
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Related to Tenth-value layer (TVL)

  • Half-value layer (HVL) means the thickness of specified material which attenuates the beam of radiation to an extent such that the exposure rate is reduced to one-half of its original value. In this definition the contribution of all scattered radiation, other than any which might be present initially in the beam concerned, is deemed to be excluded.

  • SPS AER Value means the Underlying Reference Value.

  • RI Value means, in respect of a Reference Item and a ST Valuation Date, (i) the RI Closing Value for such Reference Item in respect of such ST Valuation Date, divided by (ii) the relevant RI Initial Value (expressed as a percentage).

  • Share Valuefinal means the Preference Share Value on the Valuation Date; and "Share Valueinitial" means the Preference Share Value on the Initial Valuation Date.

  • Portfolio Value means the aggregate amount of portfolio of investments including cash balance without netting off of leverage undertaken by the CDMDF.