 Tue Feb 4 19:52:22 2020, Dinko Ferencek, Cold box tests, Blue coldbox setup for reception tests commissioned
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Today I continued where Matej left off with commissioning the blue coldbox setup for reception tests. All the necessary software (pXar and elComandante)
Matej already installed (just had to add the BB2 section in testParameters.dat). What was a problem in communication with Keithley (Model 2400) which was
fixed after changing the BAUD rate in elComandante/keithleyClient/keithleyInterface.py to 19200 (value set in Keithley's communications settings) and changing |
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Wed Feb 5 16:07:03 2020, Dinko Ferencek, Module assembly, Module assembly spreadsheet migrated to Google Sheets
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Excel file stored on CERNBox containing the module assembly spreadsheet has been replaced with a Google Sheet [URL=https://docs.google.com/spreadsheets/d/12m2ESCLPH5AyWuuYV4KV1c5O_NEy7uP5PQKzVsdr3wQ/edit?usp=sharing]https://docs.google.com/spreadsheets/d/12m2ESCLPH5AyWuuYV4KV1c5O_NEy7uP5PQKzVsdr3wQ/edit?usp=sharing[/URL].
This change should make common editing of the spreadsheet easier.
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Wed Feb 5 16:18:30 2020, Dinko Ferencek, Module transfer, Module location tracking added to the assembly spreadsheet
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To keep track of the module location, two columns were added to the module assembly spreadsheet [URL=https://docs.google.com/spreadsheets/d/12m2ESCLPH5AyWuuYV4KV1c5O_NEy7uP5PQKzVsdr3wQ/edit?usp=sharing]https://docs.google.com/spreadsheets/d/12m2ESCLPH5AyWuuYV4KV1c5O_NEy7uP5PQKzVsdr3wQ/edit?usp=sharing[/URL]
that contain the dates when a given module is shipped to ETHZ and when it is returned to PSI. |
Thu Feb 6 00:45:25 2020, Dinko Ferencek, Cold box tests, Lost at least one Peltier in the coldbox 
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During an overnight (Feb. 4-5) FullQualification run with modules 1545, 1547, 1548, and 1549 the coldbox lost the ability to maintain the temperature at
-20 C. As can be seen from the attached temperature log, the problems already started during the temperature cycles where the last 2 cycles were noticeably
longer than the first 3 and finally during the second Fulltests at -20 C the temperature started rising and stabilized around -10 C. Based on these observations |
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Thu Feb 6 17:09:50 2020, Dinko Ferencek, Module assembly, Gluing stamp improvements
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Silvan has made additional grooves on the gluing stamp which now sits stably on top of the module without any rocking motion and also allows better glue
distribution to all the HDI components that are supposed to receive the glue. |
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Thu Feb 6 17:19:12 2020, Dinko Ferencek, Reception test, RT for 6 modules: 1551, 1552, 1553, 1554, 1555, 1556
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Today reception test was run for 6 modules and looks OK for all module. The modules were graded as follows:
1551: [COLOR=darkgreen]A[/COLOR]
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 Thu Feb 6 17:28:23 2020, Dinko Ferencek, Cold box tests, New Peltiers installed
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Today new Peltiers were installed and tested. Unfortunately, we had trouble reaching -20 C with this new set of Peltiers (they are of different type than
the ones that were taken out). After better insulation ofthe sample compartment and lowering the chiller temperature from 11 to 6 C, the coldbox was able
to reach close to -19.8 C after about half an hour
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Fri Feb 7 19:40:27 2020, Dinko Ferencek, Reception test, RT for 6 modules: 1557, 1558, 1559, 1560, 1561, 1562
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Reception test is done and all 6 modules were graded [COLOR=darkgreen]A[/COLOR].
Protective caps were glued to 4 modules: 1557, 1558, 1559, 1560 |
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Fri Feb 7 20:35:44 2020, Dinko Ferencek, Full test, FT for 4 modules: 1545, 1547, 1548, 1549
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[B]1545:[/B] [COLOR=red]C/C/C[/COLOR] (-20/-20/+10). Problematic ROC 14: mean noise >320e, many dead trimbits, wide trimmed Vcal threshold distribution.
IV: 0.20 uA at +10 C, slope 1.09
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Sat Feb 8 20:48:11 2020, Dinko Ferencek, Full test, FT for 4 modules: 1550, 1551, 1552, 1553
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[B]1550:[/B] [COLOR=darkblue]B/B/B[/COLOR] (-20/-20/+10). Electrical grade is B due to mean noise >200e for some ROCs. IV: 0.45 uA at +10 C, slope 1.09
[B]1551:[/B] [COLOR=red]C/C/C[/COLOR] (-20/-20/+10). Mean noise >200e for some ROCs, dead trimbits in ROC 13, but trimmed Vcal threshold distribution and |
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Sun Feb 9 10:52:17 2020, Dinko Ferencek, Full test, FT for 4 modules: 1539, 1554, 1555, 1556
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[B]1539:[/B] [COLOR=darkblue]B/B/B[/COLOR] (-20/-20/+10). Electrical grade is B due to mean noise >200e for some ROCs. IV: 0.17 uA at +10 C, slope 1.08
[B]1554:[/B] [COLOR=darkblue]B/B/B[/COLOR] (-20/-20/+10). Electrical grade is B due to mean noise >200e for some ROCs. IV: 0.44 uA at +10 C, slope 1.80
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Sun Feb 9 12:05:47 2020, Dinko Ferencek, Module assembly, Cap gluing
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| Today protective caps have been glued to modules 1561 and 1562. |
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Sun Feb 9 18:36:13 2020, Dinko Ferencek, Module grading, Manual grading
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The procedure for manual grading is described in [URL=https://github.com/psi46/MoReWeb/pull/120]https://github.com/psi46/MoReWeb/pull/120[/URL].
In short, inside the test folder it is necessary to place a text file called [I]grade.txt[/I] that contains just one number representing the manual grade:
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Sun Feb 9 19:34:55 2020, Dinko Ferencek, Full test, FT for 4 modules: 1557, 1558, 1559, 1560
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[B]1557:[/B] [COLOR=red]C/C/C[/COLOR] (-20/-20/+10). Mean noise >200e for some ROCs, dead trimbits, failed trimming and mean noise >300e in ROC 4. IV:
0.20 uA at +10 C, slope 1.08
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Tue Feb 11 10:25:32 2020, Dinko Ferencek, Reception test, RT for 6 modules: 1563, 1564, 1565, 1566, 1567, 1568
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[COLOR=blue]Feb. 10[/COLOR]
[B]1563:[/B] Grade [COLOR=red]C[/COLOR], ROCs 8 and 10 not programmable, no obvious problems with wire bonds
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Tue Feb 11 17:56:06 2020, Dinko Ferencek, Cold box tests, Fulltest failure - psiAgente
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During today's full qualification the 2nd fulltest@-20 for TB1 (M1562) failed
[CODE]
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Wed Feb 12 10:43:04 2020, Dinko Ferencek, Module transfer, 9 modules sent to ETH: 1539, 1545, 1547, 1548, 1549, 1550, 1551, 1552, 1553
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Yesterday the following modules were sent to ETH:
1539, 1545, 1547, 1548, 1549, 1550, 1551, 1552, 1553
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Wed Feb 12 11:15:04 2020, Dinko Ferencek, Module grading, Problem with dead trimbits understood 14x
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It was noticed that some modules are graded [COLOR=red]C[/COLOR] because of typically just one ROC having a large number of dead trimbits. One example is
ROC 10 in M1537
[IMG]elog:81/1[/IMG]
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Wed Feb 12 15:40:13 2020, Dinko Ferencek, Reception test, RT for 3 modules: 1569, 1570, 1571; 1572 bad
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[B]1569:[/B] Grade [COLOR=darkgreen]A[/COLOR]
[B]1570:[/B] Grade [COLOR=darkgreen]A[/COLOR]
[B]1571:[/B] Grade [COLOR=darkblue]B[/COLOR], I > 2 uA (3.09 uA)
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Thu Feb 13 21:44:28 2020, Dinko Ferencek, Reception test, RT for 6 modules: 1573, 1574, 1575, 1576, 1577, 1578
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[B]1573:[/B] Grade [COLOR=darkgreen]A[/COLOR]
[B]1574:[/B] Grade [COLOR=darkblue]B[/COLOR], I(150)/I(100) > 2 (4.63)
[B]1575:[/B] Grade [COLOR=red]C[/COLOR], problem with one TBM core
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