1 / 26

CHANTI status

CHANTI status. CHANTI team. CHANTI TR setup. Outside the beam next to LAV1 Inside a vacuum capable tank which has been emptied in 29th November Using LAV signal flange to set V bias and read signals from the station inside the tank. 1. CHANTI TR DCS/ Readout. Beam OFF. Beam ON.

kendis
Download Presentation

CHANTI status

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CHANTI status CHANTI team

  2. CHANTI TR setup Outside the beam next to LAV1 Inside a vacuum capable tank which has been emptied in 29th November Using LAV signal flange to set Vbias and read signals from the station inside the tank 1

  3. CHANTI TR DCS/ Readout Beam OFF Beam ON Standalone DCS using a laptop with serial communication and LabView to drive CHANTI prototype board and serial comm to LAV-ToT board Only 32 out of 46 ch can be powered and read simultaneously. 1 TEL62 + 1 TDCB (64 ch, high and low th) 2

  4. CHANTI TR setup Only 32 CHANTI channels, corresponding to 64 TDC channels, can be instrumented using prototype board. Three possible configuration A-B A-C B-C but only two used: A-C B-C 3

  5. CHANTI Setup 4

  6. CHANTI B-C Setup 4

  7. CHANTI A-C Setup 4

  8. CHANTI standaloneacquisition BEAM OFF BEAM ON Very simple scripts with both .txt and .root output created by D. Di Filippo, M.Mirra and F.A. Always matches well the start of burst Able to collect about 600 CHANTI evts/burst. Acquisition limited to first ≃100 ms of the burst due to filling up of the buffer «Event» is defined offline since it is acquired triggerless 5

  9. Occupancy Long bars «Noisy» bar Short bars Medium bars 64 electronic channels , with alternating Low/High thresholds (=80/250 mV) corresponding to 32 physical channels. Occupancy coherent with the type of bar used. 6

  10. Time slewing Events with hits from both thresholds used to find average time slewing correction using logarithmic fit 7

  11. Time resolution (1) Trailingonlyhitshavebeendropped Events with more than one bar fired used for evaluating time difference to estimate time resolution. Both without slewing correction 8

  12. Time resolution (2) And with slewing corrections. RMS 2.17 ns means about 1.3 ns single channel resolution. No XY correction applied yet Expect 4 channels will be actually fired by a MIP 9

  13. Time resolution (2 bis) And with slewing corrections. RMS 2.17 ns means about 1.3 ns single channel resolution. No XY correction applied yet Expect 4 channels will be actually fired by a MIP 9

  14. ToTresponse Due to triangularshape of the barsadjacentbarsshould show anticorrelatedresponse (i.e. anticorrelatedToTatsamethreshold) 10

  15. Common acquisition Channel recodification: 1 2 1 0 8 1 11

  16. Common acquisition Channel recodification: 1 2 1 0 8 1 Station ID 11

  17. Common acquisition Channel recodification: 1 2 1 0 8 1 Ring ID Vertical = 1 Horizontal = 2 11

  18. Common acquisition Channel recodification: 1 2 1 0 8 1 If it’s a half bar up (right) = 0, down (left) = 1 11

  19. Common acquisition Channel recodification: 1 2 1 0 8 1 Channel ID in the Ring (between 0 to 16) 11

  20. Common acquisition Channel recodification: 1 2 1 0 8 1 Threshold Low = 1 High = 2 11

  21. Common acquisition Channel recodification: 1 2 1 0 8 1 Threshold Low = 1 High = 2 Station ID Ring ID Vertical = 1 Horizontal = 2 Channel ID in the Ring (between 0 to 16) If it’s a half bar up (right) = 0, down (left) = 1 11

  22. Common acquisition Ring occupancy for the different rings: X Ring and Y Ring N hits N hits 12

  23. Common acquisition Hole X (mm) Hole Y (mm) Position in the Ring (1 X, 2 Y) 13

  24. Vacuum Test Al least 10-4 mbar immediately reached and no changes in the currents. Now al least 10-5 mbar reached. In the next days a outgassing test planned 14

  25. Conclusion Acquired data with the A-C and B-C configuration in both standalone mode and common acq Acquired data with different thresholds (more than 100k events for each configuration) both in standalone acq and in common acq Acquired data different Vbias (nominal Vbias ± 250 mv and 500 mv) Tested the detector operation and response in vacuum Good response from the prototype board We have to analyse data collected using both the acquisitions 15

  26. Construction status Bars for three station have been already tested CHANTI Vessel design ready As soon as possible there will be a meeting in Frascati in order to discuss of the CHANTI board finalization 16

More Related