Alanine ESR dosimeter

Sophisticated measurement protocols have made it possible to measure low doses with an impressive precision using the alanine ESR dosimeter. Nagy et al. [34] have reported measurements within 1.5 % for doses between 1 and 5 Gy, and Hayes et al. [35] have demonstrated measurement of doses in the range 0.01-1,000 Gy with an uncertainty of 1% for high doses and 10 mGy for low doses. An uncertainty of less than 0.5% was achieved for doses between 5 and 25 Gy [36]. 

The alanine ESR dosimeter is less convenient for low dose dosimetry due to the long measurement times. New materials for the dose determinations in the interval 0.2-10 Gy may therefore be needed if the ESR method shall become a realistic alternative to existing dosimetry systems, e.g. ionisation chambers. Si-diodes, ther-moluminiscence or chemical dosimetry like Ericke solution. Strategies for finding... 

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