Development of a Liquid Scintillator and of Data ... - Borexino - Infn
Development of a Liquid Scintillator and of Data ... - Borexino - Infn
Development of a Liquid Scintillator and of Data ... - Borexino - Infn
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
6 Test <strong>of</strong> a PXE based scintillator for <strong>Borexino</strong><br />
Figure 6.1: The molecular structure <strong>of</strong> the scintillator solvents (PC <strong>and</strong> PXE), fluors (TP <strong>and</strong><br />
PPO) <strong>and</strong> wavelength shifter (bisMSB) under discussion.<br />
restrictions. PXE has an about 20 times higher viscosity than PC resulting in higher dem<strong>and</strong>s<br />
on the capabilities <strong>of</strong> the liquid h<strong>and</strong>ling system (or lower flow rates).<br />
78<br />
Property PC PXE<br />
sum formula À À <br />
molecular weight 120.2 210.3<br />
electrons per molecule 66 114<br />
density 0.876 g/cm 0.985 g/cm<br />
flash point 48 Æ C 145 Æ C<br />
boiling point 169 Æ C 295 Æ C<br />
vapor pressure @ 25 Æ C 2.03 mm Hg 0.01 mm Hg<br />
refractive index n 1.505 1.565<br />
viscosity @ 20 Æ C 0.8 cP 20 cP<br />
Table 6.2: Comparison <strong>of</strong> the basic properties <strong>of</strong> the scintillator solvents PC <strong>and</strong> PXE. From<br />
[PXE94, PC999]
Change language