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  Development and Construction related Topics, Page 1 of 37  Not logged in Qweak
Id Record date Author Type Category Subject Text Attachments
  741   11/5/2009 10:36:53 PMJohn LeckeyGeneralChamber TestingNewest AnalysisHere is the newest analysis in pdf form.  region_3_leckey_pdf.pdf 
  740   10/6/2009 1:11:45 PMJohn LeckeyGeneralChamber TestingLeia Eff vs VoltageHere is an efficiency plateau curve
for Leia as a function of voltage.  Each
efficiency is 7 wire efficiency and is
 Leia_Eff_vs_Voltage.JPG 
  739   10/5/2009 9:07:41 AMJohn LeckeyGeneralChamber TestingLeia Run Log

  
  738   10/2/2009 7:59:12 PMDavid ArmstrongGeneralChamber TestingA run plan/wish listHere are some (ambituous) thoughts for
the next couple of weeks:
Goals for VDC testing
  
  737   10/2/2009 2:07:40 PMJohn LeckeyGeneralChamber TestingLeia's 1st Drift Time SpectrumHere is the 1st drift time spectrum from
Leia.  It has poor statistics but more
data is being collected.  The shape
 Leia_wire_1130_file_1410.jpg 
  736   10/2/2009 2:02:09 PMJohn LeckeyComponentsGeneralMAD PowerFor future reference on the MAD cards:
Red wire = +6 Power
Green = Supply Ground
  
  735   10/2/2009 9:16:53 AMDavid ArmstrongGeneralChamber ConditioningLeia: conditioning history[H3]Leia: History of voltage conditioning[/H3]

Notes: trip point initially set on 1 muA
  
  734   9/29/2009 11:42:15 AMJohn LeckeyGeneralChamber TestingLeia is Alive!!Leia is currently at 3800 V and drawing
200 nA current and falling.  There were
no troubles conditioning and it only took
  
  733   9/28/2009 8:52:29 AMDavid ArmstrongGeneralChamber Construction2nd chamber (Leia) under gas The second chamber (Leia) has been
assembled; John, Ryan and Siyuan bolted it
together on Saturday. Gas (Ar/Ethane 65/35)
  
  732   9/25/2009 4:12:42 PMDavid ArmstrongGeneralChamber ConstructionStatus update
 A quick update (since nobody seems to be
writing things in the logbook):
  
  731   9/9/2009 2:30:14 PMJeong Han LeeGeneralChamber TestingQuick look at some more F1TDC data According to the F1 tdc configuration, the
resolution (bin size) is [B]0.1132[/B] ns
and the rollover count is [B]64495[/B]. 
  
  730   9/9/2009 2:30:14 PMDavid ArmstrongGeneralChamber TestingQuick look at some more F1TDC data Here is a typical time spectrum for a wire
of the first VDC (Vader). This was from Run
1376. 
 plot1.gifplot2.gifplot3.gif 
  729   9/7/2009 3:00:38 PMJohn LeckeyComponentsAlu Cover PlateSide Plate DrawingsI have designed the side plate to mate
the z-plates with the chamber aluminum plates. 
I am using the 0.75" Al we already own
 Side_Plate_Spacer.pdfSide_Plate.pdfNew_Z-Plate.pdfZ-Plate_With_Sides.pdf 
  728   8/31/2009 4:18:15 PMjoshuaDrawingsRotor rotor assy drawings finalIn response to John's worry about the length
of the load.  Here is the drawing that
was sent to Mike to be made.
 QWload3.PDF 
  727   8/28/2009 3:23:25 PMDavid ArmstrongGeneralChamber Testingupdate on F1TDC decodingUpdate: 

Josh and Jeong Han have modified xTychoAnalysis
 plota.gif 
  726   8/28/2009 9:33:19 AMDavid ArmstrongGeneralChamber TestingDecoded F1TDC results[H2]First results from F1TDC run[/H2]

I have used Jeong Han & Josh's code "xTychoAnalysis"
 plot3.gifplot5.gifplot2.gifplot1.gif 
  725   8/26/2009 12:53:49 PMJohn LeckeyGeneralChamber TestingF1 Run Log
Run  Chamber   Threshold Trigger  Conditions
     Voltage(V)  (V)           
  
  724   8/21/2009 6:11:21 PMjoshuaDrawingsrotorLoad Drawingstitle is self expanitory.
 
Josh
 ld3wplte.PDFQWload3.PDF 
  723   8/18/2009 11:51:51 AMjoshuaOtherChambersZ PlatesThe mass analysis I did gives Z-plates
to weight 308.25 lb / each using AISI304
steel. This is more than originally speculated
  
  722   8/18/2009 10:49:11 AMjoshuaOtherStress AnalysisEyelet AnalysisHere is a stress analysis of the eyelets
holding the dummy load. Same format as before:
 
 eyelet_lifter3-cosmosxpressstudy-stress-plot1.jpgeyelet_lifter3-cosmosxpressstudy-displacement-plot2.jpgeyelet_lifter3-cosmosxpressstudy-design_check-plot4.jpg 
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