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  Indian J Med Microbiol
 

Table 1: Output of gamma ray sources 60Co, 137Cs and 241Am measured by 30 cc ionization chamber at different distances for both panoramic and collimated modes

Table 1: Output of gamma ray sources <sup>60</sup>Co, <sup>137</sup>Cs and <sup>241</sup>Am measured by 30 cc ionization chamber at different distances for both panoramic and collimated modes