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Development of a Liquid Scintillator and of Data ... - Borexino - Infn

Development of a Liquid Scintillator and of Data ... - Borexino - Infn

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6 Test <strong>of</strong> a PXE based scintillator for <strong>Borexino</strong><br />

20<br />

10<br />

0<br />

20<br />

15<br />

10<br />

5<br />

0<br />

20<br />

15<br />

10<br />

5<br />

0<br />

90<br />

Run 758 - 761 Run 783 - 789<br />

-100 0 100<br />

-100 0 100<br />

-100 0 100<br />

40<br />

30<br />

20<br />

10<br />

0<br />

30<br />

20<br />

10<br />

0<br />

15<br />

10<br />

5<br />

0<br />

-100 0 100<br />

x - Po214 x - Po214<br />

y - Po214<br />

z - Po214<br />

cm<br />

cm<br />

cm<br />

-100 0 100<br />

y - Po214<br />

-100 0 100<br />

z - Po214<br />

Figure 6.7: Reconstructed position <strong>of</strong> the Po events for the runs 758 - 761 <strong>and</strong> 783 - 789.<br />

During run 758 - 761 the Rn was distributed uniformly in the Inner Vessel, whereas during<br />

the later runs, it appears to be centered around the z-axis.<br />

cm<br />

cm<br />

cm

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