Study of some optical glues for the Compact Muon Solenoid at the Large Hadron Collider of CERN

M. Montecchi, Q. Ingram

Research output: Contribution to journalArticle

13 Citations (Scopus)


Two Avalanche Photodiodes will measure the light produced in each of the 61,200 PbWO4crystals composing the barrel part of the electromagnetic calorimeter of the Compact Muon Solenoid (CMS) at the Large Hadron Collider of CERN. To improve the collection of the photons, these detectors will be glued to the crystal. To be used in CMS, the optical glue must fulfil several requirements. This paper describes some of those requirements and reports the results of more general interest achieved during the investigation of several commercial optical glues. In particular, refractive index, absorption length, radiation hardness and forecast ageing after 15 years are reported. The most promising glue for CMS was more deeply investigated; its chemical composition and a method to measure the curing time in realistic conditions are reported. © 2001 Elsevier Science B.V.
Original languageEnglish
Pages (from-to)329 - 345
Number of pages17
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - 11 Jun 2001


All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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