Difference between revisions of "Minutes 10-25-2006"
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| − | + | ==Tensioned Cathodes== | |
| + | We discussed the design issues associated with the tensioned | ||
cathode planes. To eliminate pressure differential across the | cathode planes. To eliminate pressure differential across the | ||
planes (to keep them flat), we will have to ensure the gas | planes (to keep them flat), we will have to ensure the gas | ||
| Line 15: | Line 16: | ||
each package. | each package. | ||
| − | + | ==Board Design Issues== | |
| + | - We agreed to confine the electronics for each active plane to | ||
a 120 deg arc to help with clearance issues. | a 120 deg arc to help with clearance issues. | ||
- Brian will make 3-D drawings at some point so that this can | - Brian will make 3-D drawings at some point so that this can | ||
be studied. | be studied. | ||
| + | - We discussed the 120 cm O.D.. Nothing except cables should extend | ||
| + | into this area. | ||
| − | + | ==Daughter Boards== | |
| + | - We discussed the connections of the preamps to the wire planes and | ||
cathode planes. We will not use a ``diving board" design, but | cathode planes. We will not use a ``diving board" design, but | ||
will have preamp daughter boards that extend radially (against the | will have preamp daughter boards that extend radially (against the | ||
| Line 27: | Line 32: | ||
- Brian and DSC looked at the preamp dimensions and this looks like | - Brian and DSC looked at the preamp dimensions and this looks like | ||
it will work. | it will work. | ||
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| − | |||
| − | |||
Minutes prepared by Daniel. Send any comments or corrections along. | Minutes prepared by Daniel. Send any comments or corrections along. | ||
Latest revision as of 11:57, 11 April 2007
FDC Weekly Meeting
Date: October 25, 2006
Participants: Daniel, Brian
Next Meeting: Wednesday, November 1, 2006 @ 1:30 p.m.
Tensioned Cathodes
We discussed the design issues associated with the tensioned cathode planes. To eliminate pressure differential across the planes (to keep them flat), we will have to ensure the gas volume includes the regions between neighboring cathodes. The design will also have to include gas windows on both end of the each package.
Board Design Issues
- We agreed to confine the electronics for each active plane to a 120 deg arc to help with clearance issues. - Brian will make 3-D drawings at some point so that this can be studied. - We discussed the 120 cm O.D.. Nothing except cables should extend into this area.
Daughter Boards
- We discussed the connections of the preamps to the wire planes and cathode planes. We will not use a ``diving board" design, but will have preamp daughter boards that extend radially (against the circuit boards). This is important for stability. We can afford to take a few more cm of radial space. - Brian and DSC looked at the preamp dimensions and this looks like it will work.
Minutes prepared by Daniel. Send any comments or corrections along.
