Half-Value Thickness and Tenth Value Thickness for Heavily Filtered Gamma Rays and Bremsstrahlung in broad beam conditions Table 4.8 (2)

Published: Sep 29, 2021

Half-Value Thickness and Tenth Value Thickness for Heavily Filtered Gamma Rays and Bremsstrahlung in broad beam conditions Table 4.8 (2)
Half-Value Thickness and Tenth Value Thickness for Heavily Filtered Gamma Rays and Bremsstrahlung in broad beam conditions Table 4.8 (2)

Examples for everyday use

In the above table, TVT and TVL (and HVT and HVL) are the same quantity)

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

  • The TVL value for Co-60 in lead was shown to be 4 cm.
  • The TVL value for Cs-137 in lead was shown to be 2.2 cm.

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.

The definition of 'safe' is not strictly an engineering term; it's a societal term. Does it mean absolutely no loss of life? Does it mean absolutely no contamination with radiation? What exactly does 'safe' mean?

– Henry Petroski -