{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,15]],"date-time":"2023-11-15T09:44:09Z","timestamp":1700041449276},"reference-count":20,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2007,8,9]],"date-time":"2007-08-09T00:00:00Z","timestamp":1186617600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Phys. Status Solidi (c)"],"published-print":{"date-parts":[[2007,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Positron lifetime (LT) measurements have revealed that in porous media the annihilation pattern is probably dominated by a near\u2010saturation level trapping both for the positron and the positronium as well, which masks the contribution from the \u201cfree annihilation\u201d, i.e., annihilation from delocalised positrons. In this work we compare positron lifetime spectra of crystalline zeolites with bulk ceramic materials fabricated by sintering from the same constituents as the zeolites and analyse common features and differences between them. For the dense ceramic samples the contribution from long\u2010living components to the annihilation pattern is substantially lower than that for the zeolites. The results are analysed with the aim to extract new knowledge for the zeolites and for the sensitivity limits for free volume studies in ceramics. (\u00a9 2007 WILEY\u2010VCH Verlag GmbH &amp; Co. KGaA, Weinheim)<\/jats:p>","DOI":"10.1002\/pssc.200675800","type":"journal-article","created":{"date-parts":[[2007,8,9]],"date-time":"2007-08-09T09:16:55Z","timestamp":1186651015000},"page":"3810-3813","source":"Crossref","is-referenced-by-count":3,"title":["Positron and positronium annihilation patterns in zeolites and bulk ceramics"],"prefix":"10.1002","volume":"4","author":[{"given":"Zs.","family":"Kajcsos","sequence":"first","affiliation":[]},{"given":"C.","family":"Kosanovi\u0107","sequence":"additional","affiliation":[]},{"given":"L.","family":"Liszkay","sequence":"additional","affiliation":[]},{"given":"P.","family":"Major","sequence":"additional","affiliation":[]},{"given":"L.","family":"Lohonyai","sequence":"additional","affiliation":[]},{"given":"P.","family":"Zal\u00e1n","sequence":"additional","affiliation":[]},{"given":"K.","family":"L\u00e1z\u00e1r","sequence":"additional","affiliation":[]},{"given":"S.","family":"Bosnar","sequence":"additional","affiliation":[]},{"given":"B.","family":"Suboti\u0107","sequence":"additional","affiliation":[]},{"given":"D.","family":"Bosnar","sequence":"additional","affiliation":[]},{"given":"K.","family":"Havancs\u00e1k","sequence":"additional","affiliation":[]},{"given":"P.M.","family":"Gordo","sequence":"additional","affiliation":[]},{"given":"N.","family":"Toma\u0161i\u0107","sequence":"additional","affiliation":[]}],"member":"311","published-online":{"date-parts":[[2007,9,11]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1051\/jphys:01968002904026300"},{"key":"e_1_2_1_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/pssb.2221460106"},{"key":"e_1_2_1_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0167-2991(99)80224-9"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.1677067"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/0301-0104(81)80307-2"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0969-806X(00)00246-2"},{"key":"e_1_2_1_8_2","doi-asserted-by":"crossref","unstructured":"C.Dauwe Mater. 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