Looks good. Just to point out 2 things: The reach in distance will be
more on the actual part and the connection patterns will not be as
clean. Cheers, Tim Curtis A. Meyer wrote: Hi Everyone -- one of the next tasks is to try Slava's approach, but in fact this was not difficult to connect the wires, and they are held in place by the tension in the wires. Curtis On Wed December 17 2008, Fernando J. Barbosa wrote:Hi Yves, Beautiful signals indeed! The supply and grounding connections are close to the final configuration of the CDC and this is very good news. Another issue we need to consider is to change the cooling bracket. There are two options: have a copper piece that extends to the sides and attaches to the HVB with screws (two holes on the sides of the preamp area); have a copper piece that extends past the signal connector and HVB (could be used as a handle for installation/removal and could also be attached to two of the holes in the area of the signal cable). You need to consider what would be best for the final configuration of the CDC. Gary's new cable arrangement is also much cleaner and Slava's approach will make connecting the wires to the straws much easier. Great job! Regards, Fernando Yves Van Haarlem wrote:Dear Collegues, Today we saw signals coming of the new prototype for the first time! Pictures of the current setup can be viewed on: http://www.jlab.org/Hall-D/software/wiki/index.php/Pictures_of_the_prototype Traces of the signals (cosmic ray and Fe-55 induced): http://www.jlab.org/Hall-D/software/wiki/index.php/First_signals I think that they look very nice. A lot more tests are forseen in 2009. Gary finished the prototype to do the wiring tests: http://www.jlab.org/Hall-D/software/wiki/index.php/Wiring_test At the moment it looks much better than the wiring of the prototype. We of course plan to extend the plates in order to simulate going in with your arms to connect the wires. Next thing we plan after that is testing Slava's approach. The distance between the plates is 4 inches, the longest wire is 4.5 inches. Cheers, Yves /-------------------------------- / Yves Van Haarlem _--~~--_ / /~/_| |_\~\ / Carnegie Mellon University |____________| / Department of Physics |[][][][][][]|:= / Wean Hall room 8404 __| __ |__ \ Pittsburgh, PA 15213 | ||. | == | | \ USA (| ||__| == | |) \ | |[] [] == | | \ Tel.: +1 412 268-6949 | |____________| | \ +1 412 641-9252 /__\ /__\ \ Fax.: +1 412 681-0648 ~~ ~~ \----------------------------------- |
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