positron annihilation lifetime spectroscopy

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• Positron annihilation spectroscopy — (PAS) [Positrons in Solids, P. Hautojaervi, Topics in Current Physics 12 Springer Heidelberg 1979] or Positron lifetime spectroscopy is a non destructive spectroscopy technique to study voids and defects in solids.The technique relies on the fact …   Wikipedia

• Positron Lifetime Spectroscopy — is a technique in material science used for studying the types and concentrations of atomic sized defects in materials. Positron Sources Typically positrons are produced through Beta Decay. A typical source would be 22Na, sodium 22. Positron… …   Wikipedia

• Pals — bezeichnet: Pals (Girona), eine Gemeinde in der Comarca Baix Empordà, Provinz Girona, Katalonien, Spanien die westfriesische Variante des Vornamens Paul Die Abkürzung PALS steht für: Pediatric Advanced Life Support, die erweiterten Maßnahmen für… …   Deutsch Wikipedia

• PALS — may refer to: Pouch Attachment Ladder System Pediatric Advanced Life Support Periarteriolar lymphoid sheaths Prague Asterix Laser System Patient Advice and Liaison Service Positron Annihilation Lifetime Spectroscopy See also PAL (disambiguation) …   Wikipedia

• Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …   Wikipedia

• Photon — This article is about the elementary particle of light. For other uses, see Photon (disambiguation). Photon Photons emitted in a coherent beam from a laser Composition Elementary particle …   Wikipedia

• List of materials analysis methods — List of materials analysis methods: Contents: Top · 0–9 · A B C D E F G H I J K L M N O P Q R S T U V W X Y Z μSR see Muon spin spectroscopy …   Wikipedia

• Scintillator — Scintillation crystal surrounded by various scintillation detector assemblies …   Wikipedia

• radiation measurement — ▪ technology Introduction       technique for detecting the intensity and characteristics of ionizing radiation, such as alpha, beta, and gamma rays or neutrons, for the purpose of measurement.       The term ionizing radiation refers to those… …   Universalium

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …   Universalium