TABLE 5.

Methods of Dose Assessment that were Considered in the Feasibility Study but Not Approved for Routine Dose Reconstruction

Method	Source of information/ type of sample	Sensitivity threshold	Applicability	Reason for rejection
Analytical Dose Reconstruction (ADR)	Interrogation after exposure, witness confirmation	No threshold	Not universal	Applicable only for highly skilled ChNPP employees, tends to overestimate actual dose
Electron paramagnetic resonance (EPR) dosimetry with teeth	Teeth extracted for medical reasons	50 mGy	Not universal	Applicable only for tooth donors; useful dose range only partially matches liquidators' dose range
Fluorescence in situ hybridization (FISH)	Blood samples	250–300 mGy	Universal for living subjects	Useful dose range does not match the dose range for most liquidators
Soft Expert Assessment Dosimetry (SEAD)	Interview	No threshold	Universal	Conceptually non-trivial, bad results of testing for some categories of liquidators