Published January 2011
| Version v1
Journal article
A compact positron annihilation lifetime spectrometer
- 1. Graduate University of Chinese Academy of Sciences, Beijing (China)
- 2. Key-Laboratory of Nuclear Analysis Techniques, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing (China)
Description
Using LYSO scintillator coupled on HAMAMATSU R9800 (a fast photomultiplier) to form the small size γ-ray detectors, a compact lifetime spectrometer has been built for the positron annihilation experiments. The system time resolution FWHM=193 ps and the coincidence counting rate ∼8 cps/μCi were achieved. A lifetime value of 219±1 ps of positron annihilation in well annealed Si was tested,which is in agreement with the typical values published in the previous lectures. (authors)
Additional details
Publishing Information
- Journal Title
- Chinese Physics. C, High Energy Physics and Nuclear Physics
- Journal Volume
- 35
- Journal Issue
- 1
- Journal Page Range
- p. 100-103
- ISSN
- 1674-1137
INIS
- Country of Publication
- China
- Country of Input or Organization
- China
- INIS RN
- 43076023
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Descriptors DEI
- ANNEALING; ANNIHILATION; COINCIDENCE METHODS; GAMMA RADIATION; LECTURES; LIFETIME; PHOSPHORS; POSITRONS; RADIATION DETECTORS; SPECTROMETERS; TIME RESOLUTION
- Descriptors DEC
- ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; COUNTING TECHNIQUES; DOCUMENT TYPES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FERMIONS; HEAT TREATMENTS; INTERACTIONS; IONIZING RADIATIONS; LEPTONS; MATTER; MEASURING INSTRUMENTS; PARTICLE INTERACTIONS; RADIATIONS; RESOLUTION; TIMING PROPERTIES
Optional Information
- Notes
- 5 figs., 2 tabs., 6 refs.