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VLHN
May24-04, 12:10 AM
I am having a reriew about "Ultra-Low activity Spectrometric probes"
And it has a picture

http://www.web-vn.com/DSCN0969.JPG

Figure 4a presents the density log recored in an HQ size exploration hole, using the SIROLOG density pro. Figure 4b shows the result from a log conducted in the same hole but using the ZERO PROBE.

And i dont understand about the 4a and 4b picture (i only see that if in 4a, where the analysis is max , it will be min in the 4b; and the same with the min in 4a will be max in 4b)

Why??? Any1 could explain it for me?? So thanks