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QUANTITATIVE CALCULATIONS OF ENVIRONMENTAL DOSE RATE AT DIFFERENT INFLUENCING FACTORS IN LUMINESCENCE DATING

ZHANG Ke-qi(Institute of Geomechanics,Chinese Academy of Geological Sciences,Beijing 100081,China)  
The environmental dose rate(D) in luminescence dating can be influenced by water content,cosmic ray,factor a,radon escape,etc.A series of detailed quantitative calculations were applied to the sample A1 with given U,Th and K content for D values using different parameter values of water content,cosmic rays,factor a.The calculations show that the greatest influence is up to 50% with the changes of water content,and the influence from cosmic rays is up to 15%.The influence from factor a is relatively smaller because it usually is a given constant value.The radon escape will bring an error no more than 8%.
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