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Tying up some loose ends
I spent most
of my day out here making some final measurements
on the TIGER instrument. By this, I actually mean working on the
instrument and measuring distances that will be very important during
the data- analysis phase of the campaign. For example, in order
for the hodoscope to
work, it is necessary to know the depth of the detector stack down to
the millimeter. If you have the x-y coordinates of the particle
near the top of the detector, and the x-y coordinates near the bottom
of the detector, you will need the distance between the two hodoscope
layers to determine the precise angle that the particle's trajectory
made in the detector. Tomorrow, Dana and I will take off the top
module of the detector stack
(the top two scintillators, S1 and S2 and the top hodoscope, HT) so we
can begin checking to make sure that the approximately 200 high-voltage
connectors did not loosen up during TIGER's journey down to the Ice.
The rest of the day was spent continuing to iron out
problems with networking and getting our group's printer online.
There are some problems with networking all around town lately.
Our connection to the outside world has been extremely slow, especially
out here at Williams Field (which makes it somewhat difficult to post
these journal entries daily!).
On our way back to MacTown, I discussed with Drew
Denney, one of the NSBF engineers that will help us get our instrument
up and running with its SIP, when we can begin turning the instrument
on so we can check the CPU and the PMTs out. There is still some
unloading to be done, but it looks like we might have things running by
the end of the week.
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