Ultra-Low Activity Spectrometric Probes Review

[VLHN]

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 don't 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

 

[Valerie Park]

in advance.The figures 4a and 4b represent the results of two different types of ultra-low activity spectrometric probes. The SIROLOG density probe (Figure 4a) reads the density of a given environment, whereas the ZERO PROBE (Figure 4b) measures the concentration of radiation or other elements in the same environment. The results of the two probes are displayed in different ways: The SIROLOG density probe records density in a logarithmic scale (with higher values indicating greater density), whereas the ZERO PROBE displays the concentration of radiation or other elements in the same environment (with higher values indicating a greater concentration). As such, the highest value recorded in the SIROLOG density probe (Figure 4a) will correspond to the lowest value recorded in the ZERO PROBE (Figure 4b), and vice versa.