First results with THGEM followed by submillimetric multiplying gap

A. E.C. Coimbra*, A. S. Conceição, J. A. Mir, A. Rubin, M. Pitt, A. Breskin, C. A.O. Henriques, J. M.F. Dos Santos

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This work presents the first results dealing with THGEMs coupled to submillimetric multiplication gaps, operated in an atmospheric pressure of Ne/CF4. The experimental studies done so far with a THGEM coupled to submillimetric multiplication gaps achieved charge-gains of 4 × 10 4 and 1 × 105 in Ne/CF4 (95:5), for 0.4 mm and 0.8 mm gaps, respectively, values that are one order of magnitude higher than those obtained in single-THGEM configuration and approximately half from those obtained for a cascaded-THGEM configuration. The present studies evaluate the performance operation in terms of the charge-gain characteristics and X-ray energy resolution.

Original languageEnglish
Article numberP06004
JournalJournal of Instrumentation
Issue number6
StatePublished - Jun 2013
Externally publishedYes


  • Charge transport and multiplication in gas
  • Electron multipliers (gas)
  • Micropattern gaseous detectors (MSGC, GEM, THGEM,RETHGEM, MHSP, MICROPIC, MICROMEGAS, InGrid, etc)
  • X-ray detectors


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