Positrons and positronium in zeolites

Zs Kajcsos, G. Duplâtre, L. Liszkay, K. Lázár, L. Lohonyai, G. Pál-Borbély, H. K. Beyer, P. Caullet, J. Patarin

Research output: Contribution to journalConference article

13 Citations (Scopus)


Positronium (Ps) formation and interactions were investigated in zeolites. Positron annihilation (PA) lifetime spectroscopy, Doppler-broadening and the recording of the annihilation radiation energy distribution were applied to faujasite X and Y, silicalite-1 (by composition pure SiO2), ZSM-5 and mordenite. The dependence on heat treatment, sample evacuation and gas filling or water content was investigated. Lifetimes over 130 ns and Ps-fractions of 30-40% were found. Various PA techniques yield data with unexpected features for various samples.

Original languageEnglish
Pages (from-to)238-243
Number of pages6
JournalMaterials Science Forum
Publication statusPublished - Jun 7 2001
Event12th International Conference on Positron Annihilation - Munchen, Germany
Duration: Aug 6 2000Aug 12 2000



  • 3y-Annihilation
  • Capillary condensation
  • Long-lived o-Ps
  • Positronium
  • SiO
  • Zeolites

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Kajcsos, Z., Duplâtre, G., Liszkay, L., Lázár, K., Lohonyai, L., Pál-Borbély, G., Beyer, H. K., Caullet, P., & Patarin, J. (2001). Positrons and positronium in zeolites. Materials Science Forum, 363-365, 238-243.