1 / 8

KU PIRE

KU PIRE. Activities at: CERN Testbeam in June PSI Sensor Efficiency Firmware Pixel eff. With overlaps KU Testboards Trimming in X-ray. CERN - testbeam. When: June 2-18 Goal: Measure the efficiency and spatial resolution of present sensors as function of irradiation dose

darius
Download Presentation

KU PIRE

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. KU PIRE Activities at: CERN Testbeam in June PSI Sensor Efficiency Firmware Pixel eff. With overlaps KU Testboards Trimming in X-ray

  2. CERN - testbeam • When: June 2-18 • Goal: Measure the efficiency and spatial resolution of present sensors as function of irradiation dose • What: Pixel telescope • Trigger, 4 chips to define track • Device under test in coldbox • 3T Magnetic field possible • Devices tested: • Unirradiated • 6E14 Neq/cm2 (2years in first layer) • 1.2E15 Neq/cm2 (4 yrs) • 3E15 Neq/cm2 Beam trig t1 t2 dev t3 t4

  3. PSI – Sensor Efficiency • Jennifer and Meghan (with Joaquin) • Goals: • for each run, find when there is a track as defined by the telescope and then see whether there is a hit where expected in the device under test -> efficiency • Measure the spatial resolution and Lorentz angle at different incoming angles • What is happening now: • -Use correlations between pixel hits on different telescope to define track • Resolution from fits shows that the beam is less than one pixel wide • - Loop through hits in first element and project to next one and see whether there is a hit where it is expected. Then a quick alignment will be done.

  4. PSI – Firmware - Yasen • General testboard diagnosing • Internal Timing Calibration • The plan: create algorithm that increments “slope” variable until the two points meet smoothly and precisely independent of hardware • TBM emulator improvements

  5. Internal Timing Calibration • Clock limitations to units of 12.5 ns • Logic cells used for even smaller units of ~0.5-1.5 ns • Logic cell does not change signal, just slightly delays it • Began measuring the timing delay adjustments for values between the 12.5 ns scale using logic cells • KU-11 • KU-23 • PSI-14 Roc attached • PSI board seemed already calibrated (manually), KU boards not 9/21/2014 Yasen Ivanov, KU 5

  6. PSI – pixel overlap efficiency • Valeria started and now helping Cameron (UNL) • Where modules overlap, can measure how efficient the pixel detectors are with data from LHC

  7. KU – Board testing • Will, Avery, Chris, Danny, Thomas • Testboard production/testing • Gatekeeper board production/testing • 10 made, but shipping problems and need to be tested

  8. KU - Trimming • Thomas • What is trimming • For each of 4160 pixels on one Readout Chip (ROC), you need to set the threshold above which the pixel will be read out • There are several bits that need to be set. Current procedure uses a calibration pulse from the ROC itself. Pixels set one at a time and X-talk and other effects not accounted for. • Use X-ray box instead? • This way, real signals are being obtained from the sensors through the readout chain as they are in the detector instead of through just the ROC • Will see if the trimming can be set by looking at the noise

More Related