1 / 10

Sparks study

Sparks study. Fabien Jeanneau On the behalf of HL-LHC team in Saclay. Detector types. Standard bulk detector (1mm pitch, 128 µ m gap) CLK (2 MΩ/ ☐ ) + prepreg (75µm) + bulk: Grounding by vias Resistive strips (ink ~100 kΩ / ☐ ) + bulk: 1 mm pitch 0,5 mm pitch

ziv
Download Presentation

Sparks study

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. Sparks study Fabien Jeanneau On the behalf of HL-LHC team in Saclay

  2. Detector types • Standard bulk detector (1mm pitch, 128 µm gap) • CLK(2 MΩ/☐) + prepreg (75µm) + bulk: • Grounding by vias • Resistive strips (ink ~100 kΩ/☐) + bulk: • 1 mm pitch • 0,5 mm pitch • Joerg-like detectors: • 250 MΩ along the strips • 30 MΩ between resistor and ground

  3. Setup • Measurement through a 1MΩ resistor • Detector divide in four parts • Sparks triggered by an alpha source • HVdrift = -450 V • HVmesh up to sparks arising 1MΩ Oscilloscope /// /// /// ///

  4. Standard prototype Sparking HV  -330 V Current~ few µA

  5. Carbon-loaded Kapton type 50 V difference !! Sparking HV  -380 V Current< 500 nA

  6. Resistive strips Sparking HV  -340 V Current< 500 nA

  7. Joerg-like prototype Sparking HV  -350 V -350 V Current< 50 nA -360 V Current < 100 nA -370 V Current < 300 nA HV = -350 V

  8. HV = -360 V

  9. HV = -370 V

  10. Comparison

More Related