Half-Value Thickness and Tenth Value Thickness for Heavily Filtered X-Rays in Broad Beam conditions Table 4.8 (1)

Published: Sep 29, 2021

Half-Value Thickness and Tenth Value Thickness for Heavily Filtered X-Rays in Broad Beam conditions Table 4.8 (1)
Half-Value Thickness and Tenth Value Thickness for Heavily Filtered X-Rays in Broad Beam conditions Table 4.8 (1)

Examples for everyday use

In the preceding sections of this handbook presentation we established the following which is recognised in modern radiation shielding literature.

  • The TVL value for 150 kV x-rays was 1 mm lead.
  • The TVL value for 10 MV linac x-rays was 38 cm in standard density (2.35) concrete. (This is the TVLe, equilibrium value).

The values above were taken off the transmission curves shown earlier in this resource. It can be seen that the values are essentially the same as those presented in the above table.

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