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. 1974 Jul-Aug;78A(4):465–476. doi: 10.6028/jres.078A.030

Table 10.

Ratios of exposure rates, as determined with each ionization chamber, to the unweighted mean exposure rate (7 × 10−3 R · s−1)

Chamber 137Cs 60Co
1 1.0033 1.0025
10 .9998 .9998
30 .9973 .9990
50–1 .9999 .9994
50–2 .9999 .9995
50–3 1.0000 .9998