Radiation 



~r "T 



Motivation Loss 

 Fatigue 

 Weakness 

 Anorexia 



Prolonged Reaction Time 

 Decrement Performance Accuracy 



Diarrhea 



Nau 

 Emesis 



Hypotension 



Early Transient 

 Incapacitation 



1 







200 



400 600 



Radiation (cGy) 



800 



1000 



Figure 1A. Performance Degradation Events Occurring at Various 

 Doses of Radiation 



i r 



Performance 

 Decrement 



Neurovascular 



Gastro- 

 intestinal 



Hematological/ 

 Immunological 



2 4 6 8 10 12 14 16 18 20 22 



(Days) (Years) 



Radiation Exposure 



Time 



Figure IB. Temporal Relation of Postexposure Medical Effects 



57 



