Title of article
A high-performance, high-resolution positron annihilation coincidence Doppler broadening spectrometer
Author/Authors
Van Petegem، نويسنده , , S. and Van Waeyenberge، نويسنده , , B. and Segers، نويسنده , , D. and Dauwe، نويسنده , , C.، نويسنده ,
Pages
9
From page
622
To page
630
Abstract
We present a simple, high-performance, high-resolution, two-dimensional Doppler broadening spectrometer for positron annihilation experiments. We used a combination of two germanium detectors and a Digital Signal Processor unit as photon detection system. The coincidence circuit and data acquisition circuit are provided by a home-built system. We have investigated the background contributions, resolution and stability.
Keywords
Defect identification , Positron annihilation , Coincidence Doppler spectroscopy
Journal title
Astroparticle Physics
Record number
2021760
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