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Detection and Removal of Short-circuits on GEM-foils

  • M. Kalliokoski*
  • , T. Hilden
  • , R. Lauhakangas
  • , P. Karppinen
  • , T. Karppinen
  • , R. Turpeinen
  • , J. Heino
  • , Eija Tuominen
  • *Corresponding author for this work
  • University of Helsinki

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

Abstract

High resolution scanning system was used to locate the areas on GEM-foils that might contain short-circuit. These areas were analyzed by threshold method for fast identification. Different methods to remove short-circuits on GEM-foils were studied. Since using the standard procedure of "burning" shorts with high current might incur additional damage to the foil, we have also studied several non-destructive methods. These methods were for example washing with high power ultrasonic, manual extirpation and by using resonance frequencies. We will show results on locating and removing the GEM-shorts from standard bi-conical 10 cm ¥ 10 cm foils.

Original languageEnglish
Pages (from-to)464-471
JournalPhysics Procedia
Volume37
DOIs
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
Event2nd International Conference on Technology and Instrumentation in Particle Physics, TIPP 2011 - Chicago, United States
Duration: 9 Jun 201114 Jun 2011

Keywords

  • GEM
  • optical scanning system
  • short-circuit

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