Published November 1989 | Version v1
Journal article Metadata-only

A study on positron annihilation of large angle grain boundaries

Creators

  • 1. China Univ. of Science and Technology, Hefei, AH (China)
  • 2. Academia Sinica, Beijing, BJ (China). Inst. of High Energy Physics
  • 3. Academia Sinica, Beijing, BJ (China). Inst. of Atomic Energy

Description

The relationship between positron mean lifetime and grain size, based on two state trapping model, has been developed, and the saturation trapping at grain boundaries has been predicated. Experimetally, the relationship is tested and verified through the positron trapping at grain boundaries of Zn-22wt.% Al alloys. A general situation of positron trapping at large angle grain boundaries is discussed

Additional details

Publishing Information

Journal Title
Nuclear Techniques
Journal Volume
12
Journal Issue
11
Series
Nucl. Tech.
Journal Page Range
638-642
ISSN
0253-3219
CODEN
NUTED

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
22017583
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALUMINIUM ALLOYS; ANNIHILATION; GRAIN BOUNDARIES; GRAIN SIZE; LIFETIME; POSITRONS; SATURATION; TRAPPING; ZINC BASE ALLOYS
Descriptors DEC
ALLOYS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; CRYSTAL STRUCTURE; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTONS; MATTER; MICROSTRUCTURE; PARTICLE INTERACTIONS; SIZE; ZINC ALLOYS