5 Consider Fig 58 Explain why the response function for tiss

5. Consider Fig. 5.8. Explain why the response function for tissue kerma in air is less than the other response functions at all energies. Explain why the response function for the deep dose equivalent index exceeds those for the ambient dose (at certain energies) and the effective dose.

Solution

The tissue kerma in air at specific locations is unadjusted for the effect of shilding by structure or terrain will be called the free in air kerma.

A tissue or air equivalent to the thickness less than 0.1 g/cm².Achamber is equipped with a buid up cap of about 0.5 g/cm² for the calibration of such a chamber free in air using cobalt 60 gamma radiation.

Deep dose equivalent index have conversion coefficents that are very similar at energies above about 5kev.Deep dose equivalent index do not diverge significantly from those that woud have been recorded using more modern dose standerds.