1 / 4

Custom PCB Production Solution Developed at CERN for High Voltage Resistive Chain Application

After discussions with Rui and his team at CERN, a solution was devised to manufacture a custom printed circuit board (PCB) in one piece on-site at CERN. The raw materials have been ordered, with a minimum order of 30m² due to its unusual width of 650mm. Expected delivery is set for early February, after which Rui will require approximately 4 weeks for PCB production, during which GEM production will be temporarily halted. The final design consists of three identical branches in the resistive chain, aimed at optimizing high voltage operations.

charlotte-walton
Télécharger la présentation

Custom PCB Production Solution Developed at CERN for High Voltage Resistive Chain Application

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. PCB production • After discussions with Rui and his technicians at CERN a solution was found to manufacture the PCB at CERN in one piece. • The raw material (50  thick polymide + 5  Cu on each side) • has been ordered. Due to the large non-standard width needed (650 mm) this is a custom made order with a minimum order of 30 m2. Expected delivery to CERN beginning of February. • From reception of raw material, Rui will need approximately 4 weeks to manufacture the PCB. • GEM production will cease during PCB production to allow maximum manpower devoted to PCB. We should have by then at least 60 GEMs.

  2. PCB final design

  3. R2 R2 R2 R2 R R2 HV Resistive chain 3 identical branches • For VGEM = 500V: • Present resistive chain (R1 = 1.2, R2=20, R=5M) • I = 300 A • If a short occurs in one HV segment: • I  301.5 A • voltage across AB  451 V • voltage across damaged GEM  225V • Keep R2 only on segmented face • I  302.7 A • voltage across damaged GEM  411V A B

  4. R2 R2 R2 R2 R HV New Resistive chain 3 identical branches • For VGEM = 500V: • Proposed resistive chain: • - Double R1 and R to be able to use LeCroy PS • R1 = 2.4, R = 10 M • - Keep R2 = 20 M only on the segmented face • In normal operation I = 150 A • If a short occurs in one HV segment: • I  152.3 A • voltage across damaged GEM • = VAB = 349 V • If R2 = 80 M I  150.7 A VAB = 451 V A B

More Related