Monday, October 17, 2011

3, 2, 1, Contact...

Pascal sent me a Google Sketchup sketch of the arrangement of the detectors in the room space, and I sent him some feedback on it.

Still working on re-establishing contact with CLC.  Ray spoke to the CLC director, Michelle Personette, the other day, and confirmed that Reed Lambdin is still our contact person.  I sent Reed another email, and CC'd the students on it, as well as Michelle.  Also Ray found Reed's phone number on CLC's website; I posted that in the group blog, and also emailed it to the students.  Hopefully things will get moving soon.

Ray got some histogram results on pulse heights from Gun Case #2 (new PMT #1), and there was a fairly sharp peak around 370 mV.  This was also where the peak of the coincidence pulses was - of course, the detectors are still overlapping at the moment.  Ray started another measurement run with the other PMT to see where the peak is on that one.  Perhaps later we should also do one with a logic trigger when the detectors are across the room from each other (to filter for the real coincidences, i.e., shower events).

At some point soon, I need to test the new coincidence detection firmware - soon after Ray finishes his present data-collection run on the scope.

Ray submitted a disclosure on the Cosmic Cube concept to the FAMU tech licensing office, they sent it off to some lawyers in South Florida, who sent us some feedback, which was somewhat off the mark.  At least they responded quickly.

Samad came by my office earlier today to discuss batteries for the Project Plan report; he is coming by the lab tomorrow and we are planning to do power measurements on the GPS application.  Before he gets here, I need to get that system up & running again.  However, in this test, we're going to try driving it from external supplies, to provide the +3.3V, +5V, and +12V inputs, so we can measure the currents.  I hope the board still works without the -12V input!

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