).
So, the crossection of enzyme radiational decomposition through Auger-destruction
channel can be expressed as: Oksengendler B.L., Strokovich K.E., Ruban I.N., Voropaeva N.L.
Institute of Chemistry and Physics of Polymers of Academy of Sciences of Uzbekistan
Multi-electron atoms are known to be the co-factor of the great number
of enzymes. This fact opens specific channels for the effect of low energy
ionizing radiation. For example, a biopolymer containing multielectron
atom of metal as enzyme co-factor, is exposed to X-rays, -particles, or
ions flux. We consider the ionization of deep shells of this metallic atom
resulting in atom transformation into multicharged ion Z by Auger-cascade.
To decompose the biomolecule by electrostatic forces, electrostatic energy
of Auger charge must exceed the material strength ().
So, the crossection of enzyme radiational decomposition through Auger-destruction
channel can be expressed as:
where 
- ionization crossection
of deep chell of co-factor atom; 
- specific time of ion decomposition; 
- specific life time of cloud of holes at one lattice point after metal
atom ionization; 
- the spectrum
of Auger charges yield.
In the case of narrow yield distribution of Auger charges 
,
the yield of one enzyme decomposition resulting from one ionization of
deep chell can be expressed as:
where 
- correlation factor
for Auger holes; 
- probability
of Auger cascade.
Estimation gives the value of 
,
that is rather sufficient value for radiational inactivation of bioobjects
(see H. Jung, 1967).