Evaluation of Worker Radiation Exposure during the Kori Unit 1 Steam Generator Dismantling Process

Table 8

Hot leg and cold leg pipe of SG source term data before replacement.

Radionuclide	Hot leg pipe	Cold leg pipe
	Concentration (Bq/m^2)	Concentration (Bq/m^2)
^51Cr	2.98 × 10^6	8.16 × 10^5
54Mn	5.28 × 10^5	3.51 × 10^5
^59Fe	3.80 × 10^5	1.10 × 10^5
^57Co	5.95 × 10^4	5.14 × 10^4
^58Co	1.06 × 10^7	1.11 × 10^7
^60Co	5.65 × 10^6	6.90 × 10^6
^65Zn	3.33 × 10^5	3.76 × 10^5
^85Sr	8.28 × 10^5	2.43 × 10^6
^95Zr	1.84 × 10^6	N/A
^95Nb	2.82 × 10^6	3.43 × 10^5
^103Ru	4.84 × 10^6	2.62 × 10^5
^106Ru	6.78 × 10^6	N/A
^113Sn	1.96 × 10^5	N/A
^136CS	1.27 × 10^5	5.16 × 10^5
^141Ce	8.13 × 10^5	8.23 × 10^4
^144Ce	1.39 × 10^6	N/A