1. A Look at DCU Temperature Data August 4, 2008 Ryan Kelley Matthew LeBourgeois

2. p.2 Purpose Matthew and I are working with Andrea Venturi and Slawek Tkaczyk to further develop tools for analyzing the DCU data –These slides show very preliminary work using the framework developed by Andrea (only been at it a week) –Mainly to show that some plots have been made and that the capability exists to make plots to analyze the DCU temperature data. –So far, only looked at temperature data from July 23 rd and July 29 th.

3. p.3 Detector Control Unit (DCU) Detector Control unit –Used to monitor slowly varying analog signals Temperature Voltage Current Etc. –DCU samples from two temperature probes: Silicon and Hybrid Two voltages are sampled –V250 (2.5V lines) –V125 (1.25V lines)

4. p.4 DCU Temperatures This is a first looked at this data: –TEC- from 23 rd,10:15 - 12:20 (last read out from this time interval) Empty = no data read

5. p.5 Plot of individual wheel (labels are temps in °C) –Last reading for this time interval (23 rd, 10:15 - 12:20) Individual Wheel, July 23rd 1c0465a9 = bs, petal5, ring5, mod2, stereo  -14.62 °C ??? TEC- wheel #1 = Expected Temperature ~ 25 ºC glued modules

6. p.6 Same wheel –Last reading for this time interval (29 rd, 11:00 - 13:30) –Not happy with the colors Individual Wheel, July 29 th 1c0465a9 = bs, petal5, ring5, mod2, stereo  -31.21 °C ??? TEC- wheel #1 =

7. p.7 Can also look at averages (new feature added) –Average over the given time period (23 rd, 10:15 - 12:20) Average Temps, July 23 rd 13.33 °C TEC- wheel #1 =

8. p.8 Average over the given time period (29 th, 11:00 - 13:30) Average Temps, July 29 th -31.21 °C TEC- wheel #1 =

9. p.9 By individual module: –Plot of history over all the measurements –TimeStamp = # seconds since 1970 –hot and then erroneous negative values ???? Needs more investigation DCU Temperature July 23 rd TimeStamp ºC 1c0465a9 = bs, petal5, ring5, mod2, stereo

10. p.10 Same module (July 29th, 1100-1330) –All times give the same -31.2 ºC? DCU Temperature July 29 th TimeStamp = # sec’s since 1970 ºC 1c0465a9 = bs, petal5, ring5, mod2, stereo

11. p.11 Average over Component Can also average over a selection (Ring, Disk, a list of modules, etc.): July 29 th, 1100-1330 (last time) Warning: the color scale has changed--now correspond to the different selections SS1, 26.34 SS2, 25.60 25.67 25.85 24.06 28.25

12. p.12 Other plots available Right now we have TEC-, TEC+ and TIB –Temporary location: http://hepweb.ucsd.edu/~rwkelley/dcu_temps/http://hepweb.ucsd.edu/~rwkelley/dcu_temps/ Organized by date, then by Sub Detector (23 rd and 29 th only so far) TEC+, wheel #6 TIB layer

13. p.13 Conclusions There exist software tools for monitoring the DCU temperature data Matt and I have learned to use Andrea’s framework to extract this data We have already begun to extend it (e.g. averages) To do: –Next, we need to take a look at voltages and currents –Interface with the WBM framework (working with Jake Ribnik). –Colors need work…