01846nam 2200517 450 991070577750332120170614141139.0(CKB)5470000002452629(OCoLC)990064755(EXLCZ)99547000000245262920170614d1996 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierMicrostructural characterization of polymers by positron lifetime spectroscopy /by Jag J. SinghHampton, VA :NASA Langley Research Center,[1996]1 online resource (6 unnumbered pages) illustrationsNASA-TM ;110469"Invited paper presented at Fourteenth International Conference on the Applications of Accelerators in Research and Industry held at University of North Texas at Denton, Texas, Nov. 6-9, 1996."Includes bibliographical references (pages [6]).Positron annihilationnasatAcrylic resinsnasatEpoxy compoundsnasatAging (materials)nasatPolyimidesnasatSpectroscopynasatMicrostructurenasatQuenching (atomic physics)nasatPositron annihilation.Acrylic resins.Epoxy compounds.Aging (materials)Polyimides.Spectroscopy.Microstructure.Quenching (atomic physics)Singh Jag J.1408864Langley Research Center,GPOGPOBOOK9910705777503321Microstructural characterization of polymers by positron lifetime spectroscopy3493884UNINA